high idle
05-16-2007, 01:40 PM
#51
Guest
Posts: n/a
Re: high idle
On May 16, 11:26 am, Mike Romain <roma...@sympatico.ca> wrote:
> 88yj wrote:
> > On May 16, 9:15 am, Mike Romain <roma...@sympatico.ca> wrote:
> >> 88yj wrote:
> >>> On May 15, 2:29 pm, Mike Romain <roma...@sympatico.ca> wrote:
> >>>> 88yj wrote:
> >>>>> On May 15, 10:18 am, Mike Romain <roma...@sympatico.ca> wrote:
> >>>>>> The only thing I can think of that would be affected so much by just
> >>>>>> letting the clutch pedal out in neutral would be that the body has lost
> >>>>>> it's ground and is stealing one through the clutch pedal. I have seen
> >>>>>> that happen with the brake pedal and gas pedal and gear shift and radio
> >>>>>> and... anyway.
> >>>>>> There should be a wire mesh strap that runs from the rear of the engine
> >>>>>> head to the firewall. This does go bad.
> >>>>>> It doesn't sound like the choke is working proper either, but that would
> >>>>>> have no bearing on the position of the clutch pedal...
> >>>>>> A carb kit is only about $20.00 or so and is easy to put in them.
> >>>>>> Mike
> >>>>>> 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
> >>>>>> 88 Cherokee 235 BFG AT's
> >>>>>> Canadian Off Road Trips Photos: Non members can still view!
> >>>>>> Jan/06http://www.imagestation.com/album/pictures.html?id=2115147590
> >>>>>> (More Off Road album links at bottom of the view page)
> >>>>>> 88yj wrote:
> >>>>>>> i have an 88 wrangler yj and it starts fine but idles very high at
> >>>>>>> first. for the first 10 or 15 minutes it will idle at almost 3000
> >>>>>>> rpms when either in nuetral or when clutch is in. when i have the
> >>>>>>> clutch in half way it will idle at half that. when i put it in gear
> >>>>>>> it will take off as i gradually let off the clutch because the rpms
> >>>>>>> are so high. when the clutch is completely off the rpms are fine.
> >>>>>>> when i looked at the carburetor the choke was totaly open and there
> >>>>>>> was a lot of gas squirting out for just idling. i closed the choke a
> >>>>>>> little bit by hand and the rpms dropped but the gas was still coming
> >>>>>>> out at the same rate, as soon as i would let go the choke would open
> >>>>>>> back up and idle at 3000 again. i have the 4.2 liter straight 6.
> >>>>>>> anyone with an idea is greatly appreciated.
> >>>>> the clutch only has an effect when its in gear.
> >>>> OK, is this a new thing? Anything else happen or get changed?
> >>>> It idles proper at 650-700 when warmed up?
> >>>> A blown canister can cause a high idle, but that normally stays high.
> >>>> Some had this vacuum solenoid valve behind the carb that can blow an
> >>>> open into the PCV system if it isn't working right or is stuck. It
> >>>> should be affected by the engine warming up too.
> >>>> Has anyone been messing around with the vacuum line plumbing or working
> >>>> near any?
> >>>> Mike- Hide quoted text -
> >>>> - Show quoted text -
> >>> no thats what i meant in the first message. no one has worked on my
> >>> car but me and dont think i touched any vaccum lines
> >> I would first verify what bllsht pointed at, the fast idle cam being
> >> stuck as that is very common. The fix is a clean with carb cleaner spray.
>
> >> Next I would have the engine off and cold and give it two shots on the
> >> throttle like you should for a normal start, then open the air filter
> >> without starting it to verify the choke is closed.
>
> >> I was thinking electrical due to me misreading your clutch settings and
> >> agree the basics should be looked at before messing around.
>
> >> Mike- Hide quoted text -
>
> >> - Show quoted text -
>
> > i checked the cam but it is moving fine. when i hit the throttle the
> > cam moves as the screw lets it and the choke closed. when i started
> > the car the choke opened a little bit but still idled at 2000 and spit
> > gas out very fast.
>
> That sounds almost correct. It just sounds like a slight tune up
> adjustment is needed.
>
> It 'should' only idle at 1750 when first started.
>
> The choke linkage should have the fast idle cam sitting on the screw at
> the second from the end step when the engine is cold and off after
> punching the gas to close it. You then turn this screw to get it to
> come down to 1750 rpm once it starts.
>
> The next step should be around 1400 rpm and the first step should be
> around 1100 to 1200 rpm.
>
> I have mine so the first step is a 1200 rpm fast idle 'when warmed up'
> for my hand throttle and winch use which gives me the correct 'factory'
> setting of 1750 rpm at full choke when cold.
>
> If you don't have the factory book for your Jeep, the Haynes CJ manual
> is the best one for your engine and it's basic controls as well as the
> engine bay wiring harness which matches the 86 CJ7's 258.
>
> Oh, if you unplug the choke it just closes and the engine will not run
> for more than a couple minutes.
>
> You 'can' easily put a manual choke cable on it like I did, but yours
> sounds like it is almost working perfectly.
>
> Mike
> 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
> 88 Cherokee 235 BFG AT's
> Canadian Off Road Trips Photos: Non members can still view!
> Jan/06http://www.imagestation.com/album/pictures.html?id=2115147590
> (More Off Road album links at bottom of the view page)- Hide quoted text -
>
> - Show quoted text -
im actually starting to think that the cam was stuck somehow because
when i moved it manualy the rpms dropped. thanks for the help with
that. also, is there a way to adjust the air/fuel mixture without a
gauge, i have a feeling its not set right due to the fact that i just
got 28 miles from almost half a tank. i believe i know where the
screws are to adjust it. theres two on the side closest to the front
of the car towards the bottom of the carburetor, they also look like
they are intentionly countersunk to prevent unwated movement. Im 90%
sure its not the original carburetor so i doubt youll be able to tell
me exactly where they are. but if there is a way cheaper than buying
a gauge i would love to hear it
> 88yj wrote:
> > On May 16, 9:15 am, Mike Romain <roma...@sympatico.ca> wrote:
> >> 88yj wrote:
> >>> On May 15, 2:29 pm, Mike Romain <roma...@sympatico.ca> wrote:
> >>>> 88yj wrote:
> >>>>> On May 15, 10:18 am, Mike Romain <roma...@sympatico.ca> wrote:
> >>>>>> The only thing I can think of that would be affected so much by just
> >>>>>> letting the clutch pedal out in neutral would be that the body has lost
> >>>>>> it's ground and is stealing one through the clutch pedal. I have seen
> >>>>>> that happen with the brake pedal and gas pedal and gear shift and radio
> >>>>>> and... anyway.
> >>>>>> There should be a wire mesh strap that runs from the rear of the engine
> >>>>>> head to the firewall. This does go bad.
> >>>>>> It doesn't sound like the choke is working proper either, but that would
> >>>>>> have no bearing on the position of the clutch pedal...
> >>>>>> A carb kit is only about $20.00 or so and is easy to put in them.
> >>>>>> Mike
> >>>>>> 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
> >>>>>> 88 Cherokee 235 BFG AT's
> >>>>>> Canadian Off Road Trips Photos: Non members can still view!
> >>>>>> Jan/06http://www.imagestation.com/album/pictures.html?id=2115147590
> >>>>>> (More Off Road album links at bottom of the view page)
> >>>>>> 88yj wrote:
> >>>>>>> i have an 88 wrangler yj and it starts fine but idles very high at
> >>>>>>> first. for the first 10 or 15 minutes it will idle at almost 3000
> >>>>>>> rpms when either in nuetral or when clutch is in. when i have the
> >>>>>>> clutch in half way it will idle at half that. when i put it in gear
> >>>>>>> it will take off as i gradually let off the clutch because the rpms
> >>>>>>> are so high. when the clutch is completely off the rpms are fine.
> >>>>>>> when i looked at the carburetor the choke was totaly open and there
> >>>>>>> was a lot of gas squirting out for just idling. i closed the choke a
> >>>>>>> little bit by hand and the rpms dropped but the gas was still coming
> >>>>>>> out at the same rate, as soon as i would let go the choke would open
> >>>>>>> back up and idle at 3000 again. i have the 4.2 liter straight 6.
> >>>>>>> anyone with an idea is greatly appreciated.
> >>>>> the clutch only has an effect when its in gear.
> >>>> OK, is this a new thing? Anything else happen or get changed?
> >>>> It idles proper at 650-700 when warmed up?
> >>>> A blown canister can cause a high idle, but that normally stays high.
> >>>> Some had this vacuum solenoid valve behind the carb that can blow an
> >>>> open into the PCV system if it isn't working right or is stuck. It
> >>>> should be affected by the engine warming up too.
> >>>> Has anyone been messing around with the vacuum line plumbing or working
> >>>> near any?
> >>>> Mike- Hide quoted text -
> >>>> - Show quoted text -
> >>> no thats what i meant in the first message. no one has worked on my
> >>> car but me and dont think i touched any vaccum lines
> >> I would first verify what bllsht pointed at, the fast idle cam being
> >> stuck as that is very common. The fix is a clean with carb cleaner spray.
>
> >> Next I would have the engine off and cold and give it two shots on the
> >> throttle like you should for a normal start, then open the air filter
> >> without starting it to verify the choke is closed.
>
> >> I was thinking electrical due to me misreading your clutch settings and
> >> agree the basics should be looked at before messing around.
>
> >> Mike- Hide quoted text -
>
> >> - Show quoted text -
>
> > i checked the cam but it is moving fine. when i hit the throttle the
> > cam moves as the screw lets it and the choke closed. when i started
> > the car the choke opened a little bit but still idled at 2000 and spit
> > gas out very fast.
>
> That sounds almost correct. It just sounds like a slight tune up
> adjustment is needed.
>
> It 'should' only idle at 1750 when first started.
>
> The choke linkage should have the fast idle cam sitting on the screw at
> the second from the end step when the engine is cold and off after
> punching the gas to close it. You then turn this screw to get it to
> come down to 1750 rpm once it starts.
>
> The next step should be around 1400 rpm and the first step should be
> around 1100 to 1200 rpm.
>
> I have mine so the first step is a 1200 rpm fast idle 'when warmed up'
> for my hand throttle and winch use which gives me the correct 'factory'
> setting of 1750 rpm at full choke when cold.
>
> If you don't have the factory book for your Jeep, the Haynes CJ manual
> is the best one for your engine and it's basic controls as well as the
> engine bay wiring harness which matches the 86 CJ7's 258.
>
> Oh, if you unplug the choke it just closes and the engine will not run
> for more than a couple minutes.
>
> You 'can' easily put a manual choke cable on it like I did, but yours
> sounds like it is almost working perfectly.
>
> Mike
> 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
> 88 Cherokee 235 BFG AT's
> Canadian Off Road Trips Photos: Non members can still view!
> Jan/06http://www.imagestation.com/album/pictures.html?id=2115147590
> (More Off Road album links at bottom of the view page)- Hide quoted text -
>
> - Show quoted text -
im actually starting to think that the cam was stuck somehow because
when i moved it manualy the rpms dropped. thanks for the help with
that. also, is there a way to adjust the air/fuel mixture without a
gauge, i have a feeling its not set right due to the fact that i just
got 28 miles from almost half a tank. i believe i know where the
screws are to adjust it. theres two on the side closest to the front
of the car towards the bottom of the carburetor, they also look like
they are intentionly countersunk to prevent unwated movement. Im 90%
sure its not the original carburetor so i doubt youll be able to tell
me exactly where they are. but if there is a way cheaper than buying
a gauge i would love to hear it
05-16-2007, 01:40 PM
#52
Guest
Posts: n/a
Re: high idle
On May 16, 11:26 am, Mike Romain <roma...@sympatico.ca> wrote:
> 88yj wrote:
> > On May 16, 9:15 am, Mike Romain <roma...@sympatico.ca> wrote:
> >> 88yj wrote:
> >>> On May 15, 2:29 pm, Mike Romain <roma...@sympatico.ca> wrote:
> >>>> 88yj wrote:
> >>>>> On May 15, 10:18 am, Mike Romain <roma...@sympatico.ca> wrote:
> >>>>>> The only thing I can think of that would be affected so much by just
> >>>>>> letting the clutch pedal out in neutral would be that the body has lost
> >>>>>> it's ground and is stealing one through the clutch pedal. I have seen
> >>>>>> that happen with the brake pedal and gas pedal and gear shift and radio
> >>>>>> and... anyway.
> >>>>>> There should be a wire mesh strap that runs from the rear of the engine
> >>>>>> head to the firewall. This does go bad.
> >>>>>> It doesn't sound like the choke is working proper either, but that would
> >>>>>> have no bearing on the position of the clutch pedal...
> >>>>>> A carb kit is only about $20.00 or so and is easy to put in them.
> >>>>>> Mike
> >>>>>> 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
> >>>>>> 88 Cherokee 235 BFG AT's
> >>>>>> Canadian Off Road Trips Photos: Non members can still view!
> >>>>>> Jan/06http://www.imagestation.com/album/pictures.html?id=2115147590
> >>>>>> (More Off Road album links at bottom of the view page)
> >>>>>> 88yj wrote:
> >>>>>>> i have an 88 wrangler yj and it starts fine but idles very high at
> >>>>>>> first. for the first 10 or 15 minutes it will idle at almost 3000
> >>>>>>> rpms when either in nuetral or when clutch is in. when i have the
> >>>>>>> clutch in half way it will idle at half that. when i put it in gear
> >>>>>>> it will take off as i gradually let off the clutch because the rpms
> >>>>>>> are so high. when the clutch is completely off the rpms are fine.
> >>>>>>> when i looked at the carburetor the choke was totaly open and there
> >>>>>>> was a lot of gas squirting out for just idling. i closed the choke a
> >>>>>>> little bit by hand and the rpms dropped but the gas was still coming
> >>>>>>> out at the same rate, as soon as i would let go the choke would open
> >>>>>>> back up and idle at 3000 again. i have the 4.2 liter straight 6.
> >>>>>>> anyone with an idea is greatly appreciated.
> >>>>> the clutch only has an effect when its in gear.
> >>>> OK, is this a new thing? Anything else happen or get changed?
> >>>> It idles proper at 650-700 when warmed up?
> >>>> A blown canister can cause a high idle, but that normally stays high.
> >>>> Some had this vacuum solenoid valve behind the carb that can blow an
> >>>> open into the PCV system if it isn't working right or is stuck. It
> >>>> should be affected by the engine warming up too.
> >>>> Has anyone been messing around with the vacuum line plumbing or working
> >>>> near any?
> >>>> Mike- Hide quoted text -
> >>>> - Show quoted text -
> >>> no thats what i meant in the first message. no one has worked on my
> >>> car but me and dont think i touched any vaccum lines
> >> I would first verify what bllsht pointed at, the fast idle cam being
> >> stuck as that is very common. The fix is a clean with carb cleaner spray.
>
> >> Next I would have the engine off and cold and give it two shots on the
> >> throttle like you should for a normal start, then open the air filter
> >> without starting it to verify the choke is closed.
>
> >> I was thinking electrical due to me misreading your clutch settings and
> >> agree the basics should be looked at before messing around.
>
> >> Mike- Hide quoted text -
>
> >> - Show quoted text -
>
> > i checked the cam but it is moving fine. when i hit the throttle the
> > cam moves as the screw lets it and the choke closed. when i started
> > the car the choke opened a little bit but still idled at 2000 and spit
> > gas out very fast.
>
> That sounds almost correct. It just sounds like a slight tune up
> adjustment is needed.
>
> It 'should' only idle at 1750 when first started.
>
> The choke linkage should have the fast idle cam sitting on the screw at
> the second from the end step when the engine is cold and off after
> punching the gas to close it. You then turn this screw to get it to
> come down to 1750 rpm once it starts.
>
> The next step should be around 1400 rpm and the first step should be
> around 1100 to 1200 rpm.
>
> I have mine so the first step is a 1200 rpm fast idle 'when warmed up'
> for my hand throttle and winch use which gives me the correct 'factory'
> setting of 1750 rpm at full choke when cold.
>
> If you don't have the factory book for your Jeep, the Haynes CJ manual
> is the best one for your engine and it's basic controls as well as the
> engine bay wiring harness which matches the 86 CJ7's 258.
>
> Oh, if you unplug the choke it just closes and the engine will not run
> for more than a couple minutes.
>
> You 'can' easily put a manual choke cable on it like I did, but yours
> sounds like it is almost working perfectly.
>
> Mike
> 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
> 88 Cherokee 235 BFG AT's
> Canadian Off Road Trips Photos: Non members can still view!
> Jan/06http://www.imagestation.com/album/pictures.html?id=2115147590
> (More Off Road album links at bottom of the view page)- Hide quoted text -
>
> - Show quoted text -
im actually starting to think that the cam was stuck somehow because
when i moved it manualy the rpms dropped. thanks for the help with
that. also, is there a way to adjust the air/fuel mixture without a
gauge, i have a feeling its not set right due to the fact that i just
got 28 miles from almost half a tank. i believe i know where the
screws are to adjust it. theres two on the side closest to the front
of the car towards the bottom of the carburetor, they also look like
they are intentionly countersunk to prevent unwated movement. Im 90%
sure its not the original carburetor so i doubt youll be able to tell
me exactly where they are. but if there is a way cheaper than buying
a gauge i would love to hear it
> 88yj wrote:
> > On May 16, 9:15 am, Mike Romain <roma...@sympatico.ca> wrote:
> >> 88yj wrote:
> >>> On May 15, 2:29 pm, Mike Romain <roma...@sympatico.ca> wrote:
> >>>> 88yj wrote:
> >>>>> On May 15, 10:18 am, Mike Romain <roma...@sympatico.ca> wrote:
> >>>>>> The only thing I can think of that would be affected so much by just
> >>>>>> letting the clutch pedal out in neutral would be that the body has lost
> >>>>>> it's ground and is stealing one through the clutch pedal. I have seen
> >>>>>> that happen with the brake pedal and gas pedal and gear shift and radio
> >>>>>> and... anyway.
> >>>>>> There should be a wire mesh strap that runs from the rear of the engine
> >>>>>> head to the firewall. This does go bad.
> >>>>>> It doesn't sound like the choke is working proper either, but that would
> >>>>>> have no bearing on the position of the clutch pedal...
> >>>>>> A carb kit is only about $20.00 or so and is easy to put in them.
> >>>>>> Mike
> >>>>>> 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
> >>>>>> 88 Cherokee 235 BFG AT's
> >>>>>> Canadian Off Road Trips Photos: Non members can still view!
> >>>>>> Jan/06http://www.imagestation.com/album/pictures.html?id=2115147590
> >>>>>> (More Off Road album links at bottom of the view page)
> >>>>>> 88yj wrote:
> >>>>>>> i have an 88 wrangler yj and it starts fine but idles very high at
> >>>>>>> first. for the first 10 or 15 minutes it will idle at almost 3000
> >>>>>>> rpms when either in nuetral or when clutch is in. when i have the
> >>>>>>> clutch in half way it will idle at half that. when i put it in gear
> >>>>>>> it will take off as i gradually let off the clutch because the rpms
> >>>>>>> are so high. when the clutch is completely off the rpms are fine.
> >>>>>>> when i looked at the carburetor the choke was totaly open and there
> >>>>>>> was a lot of gas squirting out for just idling. i closed the choke a
> >>>>>>> little bit by hand and the rpms dropped but the gas was still coming
> >>>>>>> out at the same rate, as soon as i would let go the choke would open
> >>>>>>> back up and idle at 3000 again. i have the 4.2 liter straight 6.
> >>>>>>> anyone with an idea is greatly appreciated.
> >>>>> the clutch only has an effect when its in gear.
> >>>> OK, is this a new thing? Anything else happen or get changed?
> >>>> It idles proper at 650-700 when warmed up?
> >>>> A blown canister can cause a high idle, but that normally stays high.
> >>>> Some had this vacuum solenoid valve behind the carb that can blow an
> >>>> open into the PCV system if it isn't working right or is stuck. It
> >>>> should be affected by the engine warming up too.
> >>>> Has anyone been messing around with the vacuum line plumbing or working
> >>>> near any?
> >>>> Mike- Hide quoted text -
> >>>> - Show quoted text -
> >>> no thats what i meant in the first message. no one has worked on my
> >>> car but me and dont think i touched any vaccum lines
> >> I would first verify what bllsht pointed at, the fast idle cam being
> >> stuck as that is very common. The fix is a clean with carb cleaner spray.
>
> >> Next I would have the engine off and cold and give it two shots on the
> >> throttle like you should for a normal start, then open the air filter
> >> without starting it to verify the choke is closed.
>
> >> I was thinking electrical due to me misreading your clutch settings and
> >> agree the basics should be looked at before messing around.
>
> >> Mike- Hide quoted text -
>
> >> - Show quoted text -
>
> > i checked the cam but it is moving fine. when i hit the throttle the
> > cam moves as the screw lets it and the choke closed. when i started
> > the car the choke opened a little bit but still idled at 2000 and spit
> > gas out very fast.
>
> That sounds almost correct. It just sounds like a slight tune up
> adjustment is needed.
>
> It 'should' only idle at 1750 when first started.
>
> The choke linkage should have the fast idle cam sitting on the screw at
> the second from the end step when the engine is cold and off after
> punching the gas to close it. You then turn this screw to get it to
> come down to 1750 rpm once it starts.
>
> The next step should be around 1400 rpm and the first step should be
> around 1100 to 1200 rpm.
>
> I have mine so the first step is a 1200 rpm fast idle 'when warmed up'
> for my hand throttle and winch use which gives me the correct 'factory'
> setting of 1750 rpm at full choke when cold.
>
> If you don't have the factory book for your Jeep, the Haynes CJ manual
> is the best one for your engine and it's basic controls as well as the
> engine bay wiring harness which matches the 86 CJ7's 258.
>
> Oh, if you unplug the choke it just closes and the engine will not run
> for more than a couple minutes.
>
> You 'can' easily put a manual choke cable on it like I did, but yours
> sounds like it is almost working perfectly.
>
> Mike
> 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
> 88 Cherokee 235 BFG AT's
> Canadian Off Road Trips Photos: Non members can still view!
> Jan/06http://www.imagestation.com/album/pictures.html?id=2115147590
> (More Off Road album links at bottom of the view page)- Hide quoted text -
>
> - Show quoted text -
im actually starting to think that the cam was stuck somehow because
when i moved it manualy the rpms dropped. thanks for the help with
that. also, is there a way to adjust the air/fuel mixture without a
gauge, i have a feeling its not set right due to the fact that i just
got 28 miles from almost half a tank. i believe i know where the
screws are to adjust it. theres two on the side closest to the front
of the car towards the bottom of the carburetor, they also look like
they are intentionly countersunk to prevent unwated movement. Im 90%
sure its not the original carburetor so i doubt youll be able to tell
me exactly where they are. but if there is a way cheaper than buying
a gauge i would love to hear it
05-16-2007, 01:40 PM
#53
Guest
Posts: n/a
Re: high idle
On May 16, 11:26 am, Mike Romain <roma...@sympatico.ca> wrote:
> 88yj wrote:
> > On May 16, 9:15 am, Mike Romain <roma...@sympatico.ca> wrote:
> >> 88yj wrote:
> >>> On May 15, 2:29 pm, Mike Romain <roma...@sympatico.ca> wrote:
> >>>> 88yj wrote:
> >>>>> On May 15, 10:18 am, Mike Romain <roma...@sympatico.ca> wrote:
> >>>>>> The only thing I can think of that would be affected so much by just
> >>>>>> letting the clutch pedal out in neutral would be that the body has lost
> >>>>>> it's ground and is stealing one through the clutch pedal. I have seen
> >>>>>> that happen with the brake pedal and gas pedal and gear shift and radio
> >>>>>> and... anyway.
> >>>>>> There should be a wire mesh strap that runs from the rear of the engine
> >>>>>> head to the firewall. This does go bad.
> >>>>>> It doesn't sound like the choke is working proper either, but that would
> >>>>>> have no bearing on the position of the clutch pedal...
> >>>>>> A carb kit is only about $20.00 or so and is easy to put in them.
> >>>>>> Mike
> >>>>>> 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
> >>>>>> 88 Cherokee 235 BFG AT's
> >>>>>> Canadian Off Road Trips Photos: Non members can still view!
> >>>>>> Jan/06http://www.imagestation.com/album/pictures.html?id=2115147590
> >>>>>> (More Off Road album links at bottom of the view page)
> >>>>>> 88yj wrote:
> >>>>>>> i have an 88 wrangler yj and it starts fine but idles very high at
> >>>>>>> first. for the first 10 or 15 minutes it will idle at almost 3000
> >>>>>>> rpms when either in nuetral or when clutch is in. when i have the
> >>>>>>> clutch in half way it will idle at half that. when i put it in gear
> >>>>>>> it will take off as i gradually let off the clutch because the rpms
> >>>>>>> are so high. when the clutch is completely off the rpms are fine.
> >>>>>>> when i looked at the carburetor the choke was totaly open and there
> >>>>>>> was a lot of gas squirting out for just idling. i closed the choke a
> >>>>>>> little bit by hand and the rpms dropped but the gas was still coming
> >>>>>>> out at the same rate, as soon as i would let go the choke would open
> >>>>>>> back up and idle at 3000 again. i have the 4.2 liter straight 6.
> >>>>>>> anyone with an idea is greatly appreciated.
> >>>>> the clutch only has an effect when its in gear.
> >>>> OK, is this a new thing? Anything else happen or get changed?
> >>>> It idles proper at 650-700 when warmed up?
> >>>> A blown canister can cause a high idle, but that normally stays high.
> >>>> Some had this vacuum solenoid valve behind the carb that can blow an
> >>>> open into the PCV system if it isn't working right or is stuck. It
> >>>> should be affected by the engine warming up too.
> >>>> Has anyone been messing around with the vacuum line plumbing or working
> >>>> near any?
> >>>> Mike- Hide quoted text -
> >>>> - Show quoted text -
> >>> no thats what i meant in the first message. no one has worked on my
> >>> car but me and dont think i touched any vaccum lines
> >> I would first verify what bllsht pointed at, the fast idle cam being
> >> stuck as that is very common. The fix is a clean with carb cleaner spray.
>
> >> Next I would have the engine off and cold and give it two shots on the
> >> throttle like you should for a normal start, then open the air filter
> >> without starting it to verify the choke is closed.
>
> >> I was thinking electrical due to me misreading your clutch settings and
> >> agree the basics should be looked at before messing around.
>
> >> Mike- Hide quoted text -
>
> >> - Show quoted text -
>
> > i checked the cam but it is moving fine. when i hit the throttle the
> > cam moves as the screw lets it and the choke closed. when i started
> > the car the choke opened a little bit but still idled at 2000 and spit
> > gas out very fast.
>
> That sounds almost correct. It just sounds like a slight tune up
> adjustment is needed.
>
> It 'should' only idle at 1750 when first started.
>
> The choke linkage should have the fast idle cam sitting on the screw at
> the second from the end step when the engine is cold and off after
> punching the gas to close it. You then turn this screw to get it to
> come down to 1750 rpm once it starts.
>
> The next step should be around 1400 rpm and the first step should be
> around 1100 to 1200 rpm.
>
> I have mine so the first step is a 1200 rpm fast idle 'when warmed up'
> for my hand throttle and winch use which gives me the correct 'factory'
> setting of 1750 rpm at full choke when cold.
>
> If you don't have the factory book for your Jeep, the Haynes CJ manual
> is the best one for your engine and it's basic controls as well as the
> engine bay wiring harness which matches the 86 CJ7's 258.
>
> Oh, if you unplug the choke it just closes and the engine will not run
> for more than a couple minutes.
>
> You 'can' easily put a manual choke cable on it like I did, but yours
> sounds like it is almost working perfectly.
>
> Mike
> 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
> 88 Cherokee 235 BFG AT's
> Canadian Off Road Trips Photos: Non members can still view!
> Jan/06http://www.imagestation.com/album/pictures.html?id=2115147590
> (More Off Road album links at bottom of the view page)- Hide quoted text -
>
> - Show quoted text -
im actually starting to think that the cam was stuck somehow because
when i moved it manualy the rpms dropped. thanks for the help with
that. also, is there a way to adjust the air/fuel mixture without a
gauge, i have a feeling its not set right due to the fact that i just
got 28 miles from almost half a tank. i believe i know where the
screws are to adjust it. theres two on the side closest to the front
of the car towards the bottom of the carburetor, they also look like
they are intentionly countersunk to prevent unwated movement. Im 90%
sure its not the original carburetor so i doubt youll be able to tell
me exactly where they are. but if there is a way cheaper than buying
a gauge i would love to hear it
> 88yj wrote:
> > On May 16, 9:15 am, Mike Romain <roma...@sympatico.ca> wrote:
> >> 88yj wrote:
> >>> On May 15, 2:29 pm, Mike Romain <roma...@sympatico.ca> wrote:
> >>>> 88yj wrote:
> >>>>> On May 15, 10:18 am, Mike Romain <roma...@sympatico.ca> wrote:
> >>>>>> The only thing I can think of that would be affected so much by just
> >>>>>> letting the clutch pedal out in neutral would be that the body has lost
> >>>>>> it's ground and is stealing one through the clutch pedal. I have seen
> >>>>>> that happen with the brake pedal and gas pedal and gear shift and radio
> >>>>>> and... anyway.
> >>>>>> There should be a wire mesh strap that runs from the rear of the engine
> >>>>>> head to the firewall. This does go bad.
> >>>>>> It doesn't sound like the choke is working proper either, but that would
> >>>>>> have no bearing on the position of the clutch pedal...
> >>>>>> A carb kit is only about $20.00 or so and is easy to put in them.
> >>>>>> Mike
> >>>>>> 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
> >>>>>> 88 Cherokee 235 BFG AT's
> >>>>>> Canadian Off Road Trips Photos: Non members can still view!
> >>>>>> Jan/06http://www.imagestation.com/album/pictures.html?id=2115147590
> >>>>>> (More Off Road album links at bottom of the view page)
> >>>>>> 88yj wrote:
> >>>>>>> i have an 88 wrangler yj and it starts fine but idles very high at
> >>>>>>> first. for the first 10 or 15 minutes it will idle at almost 3000
> >>>>>>> rpms when either in nuetral or when clutch is in. when i have the
> >>>>>>> clutch in half way it will idle at half that. when i put it in gear
> >>>>>>> it will take off as i gradually let off the clutch because the rpms
> >>>>>>> are so high. when the clutch is completely off the rpms are fine.
> >>>>>>> when i looked at the carburetor the choke was totaly open and there
> >>>>>>> was a lot of gas squirting out for just idling. i closed the choke a
> >>>>>>> little bit by hand and the rpms dropped but the gas was still coming
> >>>>>>> out at the same rate, as soon as i would let go the choke would open
> >>>>>>> back up and idle at 3000 again. i have the 4.2 liter straight 6.
> >>>>>>> anyone with an idea is greatly appreciated.
> >>>>> the clutch only has an effect when its in gear.
> >>>> OK, is this a new thing? Anything else happen or get changed?
> >>>> It idles proper at 650-700 when warmed up?
> >>>> A blown canister can cause a high idle, but that normally stays high.
> >>>> Some had this vacuum solenoid valve behind the carb that can blow an
> >>>> open into the PCV system if it isn't working right or is stuck. It
> >>>> should be affected by the engine warming up too.
> >>>> Has anyone been messing around with the vacuum line plumbing or working
> >>>> near any?
> >>>> Mike- Hide quoted text -
> >>>> - Show quoted text -
> >>> no thats what i meant in the first message. no one has worked on my
> >>> car but me and dont think i touched any vaccum lines
> >> I would first verify what bllsht pointed at, the fast idle cam being
> >> stuck as that is very common. The fix is a clean with carb cleaner spray.
>
> >> Next I would have the engine off and cold and give it two shots on the
> >> throttle like you should for a normal start, then open the air filter
> >> without starting it to verify the choke is closed.
>
> >> I was thinking electrical due to me misreading your clutch settings and
> >> agree the basics should be looked at before messing around.
>
> >> Mike- Hide quoted text -
>
> >> - Show quoted text -
>
> > i checked the cam but it is moving fine. when i hit the throttle the
> > cam moves as the screw lets it and the choke closed. when i started
> > the car the choke opened a little bit but still idled at 2000 and spit
> > gas out very fast.
>
> That sounds almost correct. It just sounds like a slight tune up
> adjustment is needed.
>
> It 'should' only idle at 1750 when first started.
>
> The choke linkage should have the fast idle cam sitting on the screw at
> the second from the end step when the engine is cold and off after
> punching the gas to close it. You then turn this screw to get it to
> come down to 1750 rpm once it starts.
>
> The next step should be around 1400 rpm and the first step should be
> around 1100 to 1200 rpm.
>
> I have mine so the first step is a 1200 rpm fast idle 'when warmed up'
> for my hand throttle and winch use which gives me the correct 'factory'
> setting of 1750 rpm at full choke when cold.
>
> If you don't have the factory book for your Jeep, the Haynes CJ manual
> is the best one for your engine and it's basic controls as well as the
> engine bay wiring harness which matches the 86 CJ7's 258.
>
> Oh, if you unplug the choke it just closes and the engine will not run
> for more than a couple minutes.
>
> You 'can' easily put a manual choke cable on it like I did, but yours
> sounds like it is almost working perfectly.
>
> Mike
> 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
> 88 Cherokee 235 BFG AT's
> Canadian Off Road Trips Photos: Non members can still view!
> Jan/06http://www.imagestation.com/album/pictures.html?id=2115147590
> (More Off Road album links at bottom of the view page)- Hide quoted text -
>
> - Show quoted text -
im actually starting to think that the cam was stuck somehow because
when i moved it manualy the rpms dropped. thanks for the help with
that. also, is there a way to adjust the air/fuel mixture without a
gauge, i have a feeling its not set right due to the fact that i just
got 28 miles from almost half a tank. i believe i know where the
screws are to adjust it. theres two on the side closest to the front
of the car towards the bottom of the carburetor, they also look like
they are intentionly countersunk to prevent unwated movement. Im 90%
sure its not the original carburetor so i doubt youll be able to tell
me exactly where they are. but if there is a way cheaper than buying
a gauge i would love to hear it
05-16-2007, 03:46 PM
#54
Guest
Posts: n/a
Re: high idle
On May 16, 11:26 am, Mike Romain <roma...@sympatico.ca> wrote:
> 88yj wrote:
> > On May 16, 9:15 am, Mike Romain <roma...@sympatico.ca> wrote:
> >> 88yj wrote:
> >>> On May 15, 2:29 pm, Mike Romain <roma...@sympatico.ca> wrote:
> >>>> 88yj wrote:
> >>>>> On May 15, 10:18 am, Mike Romain <roma...@sympatico.ca> wrote:
> >>>>>> The only thing I can think of that would be affected so much by just
> >>>>>> letting the clutch pedal out in neutral would be that the body has lost
> >>>>>> it's ground and is stealing one through the clutch pedal. I have seen
> >>>>>> that happen with the brake pedal and gas pedal and gear shift and radio
> >>>>>> and... anyway.
> >>>>>> There should be a wire mesh strap that runs from the rear of the engine
> >>>>>> head to the firewall. This does go bad.
> >>>>>> It doesn't sound like the choke is working proper either, but that would
> >>>>>> have no bearing on the position of the clutch pedal...
> >>>>>> A carb kit is only about $20.00 or so and is easy to put in them.
> >>>>>> Mike
> >>>>>> 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
> >>>>>> 88 Cherokee 235 BFG AT's
> >>>>>> Canadian Off Road Trips Photos: Non members can still view!
> >>>>>> Jan/06http://www.imagestation.com/album/pictures.html?id=2115147590
> >>>>>> (More Off Road album links at bottom of the view page)
> >>>>>> 88yj wrote:
> >>>>>>> i have an 88 wrangler yj and it starts fine but idles very high at
> >>>>>>> first. for the first 10 or 15 minutes it will idle at almost 3000
> >>>>>>> rpms when either in nuetral or when clutch is in. when i have the
> >>>>>>> clutch in half way it will idle at half that. when i put it in gear
> >>>>>>> it will take off as i gradually let off the clutch because the rpms
> >>>>>>> are so high. when the clutch is completely off the rpms are fine.
> >>>>>>> when i looked at the carburetor the choke was totaly open and there
> >>>>>>> was a lot of gas squirting out for just idling. i closed the choke a
> >>>>>>> little bit by hand and the rpms dropped but the gas was still coming
> >>>>>>> out at the same rate, as soon as i would let go the choke would open
> >>>>>>> back up and idle at 3000 again. i have the 4.2 liter straight 6.
> >>>>>>> anyone with an idea is greatly appreciated.
> >>>>> the clutch only has an effect when its in gear.
> >>>> OK, is this a new thing? Anything else happen or get changed?
> >>>> It idles proper at 650-700 when warmed up?
> >>>> A blown canister can cause a high idle, but that normally stays high.
> >>>> Some had this vacuum solenoid valve behind the carb that can blow an
> >>>> open into the PCV system if it isn't working right or is stuck. It
> >>>> should be affected by the engine warming up too.
> >>>> Has anyone been messing around with the vacuum line plumbing or working
> >>>> near any?
> >>>> Mike- Hide quoted text -
> >>>> - Show quoted text -
> >>> no thats what i meant in the first message. no one has worked on my
> >>> car but me and dont think i touched any vaccum lines
> >> I would first verify what bllsht pointed at, the fast idle cam being
> >> stuck as that is very common. The fix is a clean with carb cleaner spray.
>
> >> Next I would have the engine off and cold and give it two shots on the
> >> throttle like you should for a normal start, then open the air filter
> >> without starting it to verify the choke is closed.
>
> >> I was thinking electrical due to me misreading your clutch settings and
> >> agree the basics should be looked at before messing around.
>
> >> Mike- Hide quoted text -
>
> >> - Show quoted text -
>
> > i checked the cam but it is moving fine. when i hit the throttle the
> > cam moves as the screw lets it and the choke closed. when i started
> > the car the choke opened a little bit but still idled at 2000 and spit
> > gas out very fast.
>
> That sounds almost correct. It just sounds like a slight tune up
> adjustment is needed.
>
> It 'should' only idle at 1750 when first started.
>
> The choke linkage should have the fast idle cam sitting on the screw at
> the second from the end step when the engine is cold and off after
> punching the gas to close it. You then turn this screw to get it to
> come down to 1750 rpm once it starts.
>
> The next step should be around 1400 rpm and the first step should be
> around 1100 to 1200 rpm.
>
> I have mine so the first step is a 1200 rpm fast idle 'when warmed up'
> for my hand throttle and winch use which gives me the correct 'factory'
> setting of 1750 rpm at full choke when cold.
>
> If you don't have the factory book for your Jeep, the Haynes CJ manual
> is the best one for your engine and it's basic controls as well as the
> engine bay wiring harness which matches the 86 CJ7's 258.
>
> Oh, if you unplug the choke it just closes and the engine will not run
> for more than a couple minutes.
>
> You 'can' easily put a manual choke cable on it like I did, but yours
> sounds like it is almost working perfectly.
>
> Mike
> 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
> 88 Cherokee 235 BFG AT's
> Canadian Off Road Trips Photos: Non members can still view!
> Jan/06http://www.imagestation.com/album/pictures.html?id=2115147590
> (More Off Road album links at bottom of the view page)
this is the second time im writing this, i dont know why its not
showing up but anyways...i think the cam was stuck, i moved it by hand
when the car was on and the rpms dropped. ive been runnin the engine
and the choke seems to be working fine. also, is there a way to adjust
the air-rule mixture without a gauge.
> 88yj wrote:
> > On May 16, 9:15 am, Mike Romain <roma...@sympatico.ca> wrote:
> >> 88yj wrote:
> >>> On May 15, 2:29 pm, Mike Romain <roma...@sympatico.ca> wrote:
> >>>> 88yj wrote:
> >>>>> On May 15, 10:18 am, Mike Romain <roma...@sympatico.ca> wrote:
> >>>>>> The only thing I can think of that would be affected so much by just
> >>>>>> letting the clutch pedal out in neutral would be that the body has lost
> >>>>>> it's ground and is stealing one through the clutch pedal. I have seen
> >>>>>> that happen with the brake pedal and gas pedal and gear shift and radio
> >>>>>> and... anyway.
> >>>>>> There should be a wire mesh strap that runs from the rear of the engine
> >>>>>> head to the firewall. This does go bad.
> >>>>>> It doesn't sound like the choke is working proper either, but that would
> >>>>>> have no bearing on the position of the clutch pedal...
> >>>>>> A carb kit is only about $20.00 or so and is easy to put in them.
> >>>>>> Mike
> >>>>>> 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
> >>>>>> 88 Cherokee 235 BFG AT's
> >>>>>> Canadian Off Road Trips Photos: Non members can still view!
> >>>>>> Jan/06http://www.imagestation.com/album/pictures.html?id=2115147590
> >>>>>> (More Off Road album links at bottom of the view page)
> >>>>>> 88yj wrote:
> >>>>>>> i have an 88 wrangler yj and it starts fine but idles very high at
> >>>>>>> first. for the first 10 or 15 minutes it will idle at almost 3000
> >>>>>>> rpms when either in nuetral or when clutch is in. when i have the
> >>>>>>> clutch in half way it will idle at half that. when i put it in gear
> >>>>>>> it will take off as i gradually let off the clutch because the rpms
> >>>>>>> are so high. when the clutch is completely off the rpms are fine.
> >>>>>>> when i looked at the carburetor the choke was totaly open and there
> >>>>>>> was a lot of gas squirting out for just idling. i closed the choke a
> >>>>>>> little bit by hand and the rpms dropped but the gas was still coming
> >>>>>>> out at the same rate, as soon as i would let go the choke would open
> >>>>>>> back up and idle at 3000 again. i have the 4.2 liter straight 6.
> >>>>>>> anyone with an idea is greatly appreciated.
> >>>>> the clutch only has an effect when its in gear.
> >>>> OK, is this a new thing? Anything else happen or get changed?
> >>>> It idles proper at 650-700 when warmed up?
> >>>> A blown canister can cause a high idle, but that normally stays high.
> >>>> Some had this vacuum solenoid valve behind the carb that can blow an
> >>>> open into the PCV system if it isn't working right or is stuck. It
> >>>> should be affected by the engine warming up too.
> >>>> Has anyone been messing around with the vacuum line plumbing or working
> >>>> near any?
> >>>> Mike- Hide quoted text -
> >>>> - Show quoted text -
> >>> no thats what i meant in the first message. no one has worked on my
> >>> car but me and dont think i touched any vaccum lines
> >> I would first verify what bllsht pointed at, the fast idle cam being
> >> stuck as that is very common. The fix is a clean with carb cleaner spray.
>
> >> Next I would have the engine off and cold and give it two shots on the
> >> throttle like you should for a normal start, then open the air filter
> >> without starting it to verify the choke is closed.
>
> >> I was thinking electrical due to me misreading your clutch settings and
> >> agree the basics should be looked at before messing around.
>
> >> Mike- Hide quoted text -
>
> >> - Show quoted text -
>
> > i checked the cam but it is moving fine. when i hit the throttle the
> > cam moves as the screw lets it and the choke closed. when i started
> > the car the choke opened a little bit but still idled at 2000 and spit
> > gas out very fast.
>
> That sounds almost correct. It just sounds like a slight tune up
> adjustment is needed.
>
> It 'should' only idle at 1750 when first started.
>
> The choke linkage should have the fast idle cam sitting on the screw at
> the second from the end step when the engine is cold and off after
> punching the gas to close it. You then turn this screw to get it to
> come down to 1750 rpm once it starts.
>
> The next step should be around 1400 rpm and the first step should be
> around 1100 to 1200 rpm.
>
> I have mine so the first step is a 1200 rpm fast idle 'when warmed up'
> for my hand throttle and winch use which gives me the correct 'factory'
> setting of 1750 rpm at full choke when cold.
>
> If you don't have the factory book for your Jeep, the Haynes CJ manual
> is the best one for your engine and it's basic controls as well as the
> engine bay wiring harness which matches the 86 CJ7's 258.
>
> Oh, if you unplug the choke it just closes and the engine will not run
> for more than a couple minutes.
>
> You 'can' easily put a manual choke cable on it like I did, but yours
> sounds like it is almost working perfectly.
>
> Mike
> 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
> 88 Cherokee 235 BFG AT's
> Canadian Off Road Trips Photos: Non members can still view!
> Jan/06http://www.imagestation.com/album/pictures.html?id=2115147590
> (More Off Road album links at bottom of the view page)
this is the second time im writing this, i dont know why its not
showing up but anyways...i think the cam was stuck, i moved it by hand
when the car was on and the rpms dropped. ive been runnin the engine
and the choke seems to be working fine. also, is there a way to adjust
the air-rule mixture without a gauge.
05-16-2007, 03:46 PM
#55
Guest
Posts: n/a
Re: high idle
On May 16, 11:26 am, Mike Romain <roma...@sympatico.ca> wrote:
> 88yj wrote:
> > On May 16, 9:15 am, Mike Romain <roma...@sympatico.ca> wrote:
> >> 88yj wrote:
> >>> On May 15, 2:29 pm, Mike Romain <roma...@sympatico.ca> wrote:
> >>>> 88yj wrote:
> >>>>> On May 15, 10:18 am, Mike Romain <roma...@sympatico.ca> wrote:
> >>>>>> The only thing I can think of that would be affected so much by just
> >>>>>> letting the clutch pedal out in neutral would be that the body has lost
> >>>>>> it's ground and is stealing one through the clutch pedal. I have seen
> >>>>>> that happen with the brake pedal and gas pedal and gear shift and radio
> >>>>>> and... anyway.
> >>>>>> There should be a wire mesh strap that runs from the rear of the engine
> >>>>>> head to the firewall. This does go bad.
> >>>>>> It doesn't sound like the choke is working proper either, but that would
> >>>>>> have no bearing on the position of the clutch pedal...
> >>>>>> A carb kit is only about $20.00 or so and is easy to put in them.
> >>>>>> Mike
> >>>>>> 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
> >>>>>> 88 Cherokee 235 BFG AT's
> >>>>>> Canadian Off Road Trips Photos: Non members can still view!
> >>>>>> Jan/06http://www.imagestation.com/album/pictures.html?id=2115147590
> >>>>>> (More Off Road album links at bottom of the view page)
> >>>>>> 88yj wrote:
> >>>>>>> i have an 88 wrangler yj and it starts fine but idles very high at
> >>>>>>> first. for the first 10 or 15 minutes it will idle at almost 3000
> >>>>>>> rpms when either in nuetral or when clutch is in. when i have the
> >>>>>>> clutch in half way it will idle at half that. when i put it in gear
> >>>>>>> it will take off as i gradually let off the clutch because the rpms
> >>>>>>> are so high. when the clutch is completely off the rpms are fine.
> >>>>>>> when i looked at the carburetor the choke was totaly open and there
> >>>>>>> was a lot of gas squirting out for just idling. i closed the choke a
> >>>>>>> little bit by hand and the rpms dropped but the gas was still coming
> >>>>>>> out at the same rate, as soon as i would let go the choke would open
> >>>>>>> back up and idle at 3000 again. i have the 4.2 liter straight 6.
> >>>>>>> anyone with an idea is greatly appreciated.
> >>>>> the clutch only has an effect when its in gear.
> >>>> OK, is this a new thing? Anything else happen or get changed?
> >>>> It idles proper at 650-700 when warmed up?
> >>>> A blown canister can cause a high idle, but that normally stays high.
> >>>> Some had this vacuum solenoid valve behind the carb that can blow an
> >>>> open into the PCV system if it isn't working right or is stuck. It
> >>>> should be affected by the engine warming up too.
> >>>> Has anyone been messing around with the vacuum line plumbing or working
> >>>> near any?
> >>>> Mike- Hide quoted text -
> >>>> - Show quoted text -
> >>> no thats what i meant in the first message. no one has worked on my
> >>> car but me and dont think i touched any vaccum lines
> >> I would first verify what bllsht pointed at, the fast idle cam being
> >> stuck as that is very common. The fix is a clean with carb cleaner spray.
>
> >> Next I would have the engine off and cold and give it two shots on the
> >> throttle like you should for a normal start, then open the air filter
> >> without starting it to verify the choke is closed.
>
> >> I was thinking electrical due to me misreading your clutch settings and
> >> agree the basics should be looked at before messing around.
>
> >> Mike- Hide quoted text -
>
> >> - Show quoted text -
>
> > i checked the cam but it is moving fine. when i hit the throttle the
> > cam moves as the screw lets it and the choke closed. when i started
> > the car the choke opened a little bit but still idled at 2000 and spit
> > gas out very fast.
>
> That sounds almost correct. It just sounds like a slight tune up
> adjustment is needed.
>
> It 'should' only idle at 1750 when first started.
>
> The choke linkage should have the fast idle cam sitting on the screw at
> the second from the end step when the engine is cold and off after
> punching the gas to close it. You then turn this screw to get it to
> come down to 1750 rpm once it starts.
>
> The next step should be around 1400 rpm and the first step should be
> around 1100 to 1200 rpm.
>
> I have mine so the first step is a 1200 rpm fast idle 'when warmed up'
> for my hand throttle and winch use which gives me the correct 'factory'
> setting of 1750 rpm at full choke when cold.
>
> If you don't have the factory book for your Jeep, the Haynes CJ manual
> is the best one for your engine and it's basic controls as well as the
> engine bay wiring harness which matches the 86 CJ7's 258.
>
> Oh, if you unplug the choke it just closes and the engine will not run
> for more than a couple minutes.
>
> You 'can' easily put a manual choke cable on it like I did, but yours
> sounds like it is almost working perfectly.
>
> Mike
> 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
> 88 Cherokee 235 BFG AT's
> Canadian Off Road Trips Photos: Non members can still view!
> Jan/06http://www.imagestation.com/album/pictures.html?id=2115147590
> (More Off Road album links at bottom of the view page)
this is the second time im writing this, i dont know why its not
showing up but anyways...i think the cam was stuck, i moved it by hand
when the car was on and the rpms dropped. ive been runnin the engine
and the choke seems to be working fine. also, is there a way to adjust
the air-rule mixture without a gauge.
> 88yj wrote:
> > On May 16, 9:15 am, Mike Romain <roma...@sympatico.ca> wrote:
> >> 88yj wrote:
> >>> On May 15, 2:29 pm, Mike Romain <roma...@sympatico.ca> wrote:
> >>>> 88yj wrote:
> >>>>> On May 15, 10:18 am, Mike Romain <roma...@sympatico.ca> wrote:
> >>>>>> The only thing I can think of that would be affected so much by just
> >>>>>> letting the clutch pedal out in neutral would be that the body has lost
> >>>>>> it's ground and is stealing one through the clutch pedal. I have seen
> >>>>>> that happen with the brake pedal and gas pedal and gear shift and radio
> >>>>>> and... anyway.
> >>>>>> There should be a wire mesh strap that runs from the rear of the engine
> >>>>>> head to the firewall. This does go bad.
> >>>>>> It doesn't sound like the choke is working proper either, but that would
> >>>>>> have no bearing on the position of the clutch pedal...
> >>>>>> A carb kit is only about $20.00 or so and is easy to put in them.
> >>>>>> Mike
> >>>>>> 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
> >>>>>> 88 Cherokee 235 BFG AT's
> >>>>>> Canadian Off Road Trips Photos: Non members can still view!
> >>>>>> Jan/06http://www.imagestation.com/album/pictures.html?id=2115147590
> >>>>>> (More Off Road album links at bottom of the view page)
> >>>>>> 88yj wrote:
> >>>>>>> i have an 88 wrangler yj and it starts fine but idles very high at
> >>>>>>> first. for the first 10 or 15 minutes it will idle at almost 3000
> >>>>>>> rpms when either in nuetral or when clutch is in. when i have the
> >>>>>>> clutch in half way it will idle at half that. when i put it in gear
> >>>>>>> it will take off as i gradually let off the clutch because the rpms
> >>>>>>> are so high. when the clutch is completely off the rpms are fine.
> >>>>>>> when i looked at the carburetor the choke was totaly open and there
> >>>>>>> was a lot of gas squirting out for just idling. i closed the choke a
> >>>>>>> little bit by hand and the rpms dropped but the gas was still coming
> >>>>>>> out at the same rate, as soon as i would let go the choke would open
> >>>>>>> back up and idle at 3000 again. i have the 4.2 liter straight 6.
> >>>>>>> anyone with an idea is greatly appreciated.
> >>>>> the clutch only has an effect when its in gear.
> >>>> OK, is this a new thing? Anything else happen or get changed?
> >>>> It idles proper at 650-700 when warmed up?
> >>>> A blown canister can cause a high idle, but that normally stays high.
> >>>> Some had this vacuum solenoid valve behind the carb that can blow an
> >>>> open into the PCV system if it isn't working right or is stuck. It
> >>>> should be affected by the engine warming up too.
> >>>> Has anyone been messing around with the vacuum line plumbing or working
> >>>> near any?
> >>>> Mike- Hide quoted text -
> >>>> - Show quoted text -
> >>> no thats what i meant in the first message. no one has worked on my
> >>> car but me and dont think i touched any vaccum lines
> >> I would first verify what bllsht pointed at, the fast idle cam being
> >> stuck as that is very common. The fix is a clean with carb cleaner spray.
>
> >> Next I would have the engine off and cold and give it two shots on the
> >> throttle like you should for a normal start, then open the air filter
> >> without starting it to verify the choke is closed.
>
> >> I was thinking electrical due to me misreading your clutch settings and
> >> agree the basics should be looked at before messing around.
>
> >> Mike- Hide quoted text -
>
> >> - Show quoted text -
>
> > i checked the cam but it is moving fine. when i hit the throttle the
> > cam moves as the screw lets it and the choke closed. when i started
> > the car the choke opened a little bit but still idled at 2000 and spit
> > gas out very fast.
>
> That sounds almost correct. It just sounds like a slight tune up
> adjustment is needed.
>
> It 'should' only idle at 1750 when first started.
>
> The choke linkage should have the fast idle cam sitting on the screw at
> the second from the end step when the engine is cold and off after
> punching the gas to close it. You then turn this screw to get it to
> come down to 1750 rpm once it starts.
>
> The next step should be around 1400 rpm and the first step should be
> around 1100 to 1200 rpm.
>
> I have mine so the first step is a 1200 rpm fast idle 'when warmed up'
> for my hand throttle and winch use which gives me the correct 'factory'
> setting of 1750 rpm at full choke when cold.
>
> If you don't have the factory book for your Jeep, the Haynes CJ manual
> is the best one for your engine and it's basic controls as well as the
> engine bay wiring harness which matches the 86 CJ7's 258.
>
> Oh, if you unplug the choke it just closes and the engine will not run
> for more than a couple minutes.
>
> You 'can' easily put a manual choke cable on it like I did, but yours
> sounds like it is almost working perfectly.
>
> Mike
> 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
> 88 Cherokee 235 BFG AT's
> Canadian Off Road Trips Photos: Non members can still view!
> Jan/06http://www.imagestation.com/album/pictures.html?id=2115147590
> (More Off Road album links at bottom of the view page)
this is the second time im writing this, i dont know why its not
showing up but anyways...i think the cam was stuck, i moved it by hand
when the car was on and the rpms dropped. ive been runnin the engine
and the choke seems to be working fine. also, is there a way to adjust
the air-rule mixture without a gauge.
05-16-2007, 03:46 PM
#56
Guest
Posts: n/a
Re: high idle
On May 16, 11:26 am, Mike Romain <roma...@sympatico.ca> wrote:
> 88yj wrote:
> > On May 16, 9:15 am, Mike Romain <roma...@sympatico.ca> wrote:
> >> 88yj wrote:
> >>> On May 15, 2:29 pm, Mike Romain <roma...@sympatico.ca> wrote:
> >>>> 88yj wrote:
> >>>>> On May 15, 10:18 am, Mike Romain <roma...@sympatico.ca> wrote:
> >>>>>> The only thing I can think of that would be affected so much by just
> >>>>>> letting the clutch pedal out in neutral would be that the body has lost
> >>>>>> it's ground and is stealing one through the clutch pedal. I have seen
> >>>>>> that happen with the brake pedal and gas pedal and gear shift and radio
> >>>>>> and... anyway.
> >>>>>> There should be a wire mesh strap that runs from the rear of the engine
> >>>>>> head to the firewall. This does go bad.
> >>>>>> It doesn't sound like the choke is working proper either, but that would
> >>>>>> have no bearing on the position of the clutch pedal...
> >>>>>> A carb kit is only about $20.00 or so and is easy to put in them.
> >>>>>> Mike
> >>>>>> 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
> >>>>>> 88 Cherokee 235 BFG AT's
> >>>>>> Canadian Off Road Trips Photos: Non members can still view!
> >>>>>> Jan/06http://www.imagestation.com/album/pictures.html?id=2115147590
> >>>>>> (More Off Road album links at bottom of the view page)
> >>>>>> 88yj wrote:
> >>>>>>> i have an 88 wrangler yj and it starts fine but idles very high at
> >>>>>>> first. for the first 10 or 15 minutes it will idle at almost 3000
> >>>>>>> rpms when either in nuetral or when clutch is in. when i have the
> >>>>>>> clutch in half way it will idle at half that. when i put it in gear
> >>>>>>> it will take off as i gradually let off the clutch because the rpms
> >>>>>>> are so high. when the clutch is completely off the rpms are fine.
> >>>>>>> when i looked at the carburetor the choke was totaly open and there
> >>>>>>> was a lot of gas squirting out for just idling. i closed the choke a
> >>>>>>> little bit by hand and the rpms dropped but the gas was still coming
> >>>>>>> out at the same rate, as soon as i would let go the choke would open
> >>>>>>> back up and idle at 3000 again. i have the 4.2 liter straight 6.
> >>>>>>> anyone with an idea is greatly appreciated.
> >>>>> the clutch only has an effect when its in gear.
> >>>> OK, is this a new thing? Anything else happen or get changed?
> >>>> It idles proper at 650-700 when warmed up?
> >>>> A blown canister can cause a high idle, but that normally stays high.
> >>>> Some had this vacuum solenoid valve behind the carb that can blow an
> >>>> open into the PCV system if it isn't working right or is stuck. It
> >>>> should be affected by the engine warming up too.
> >>>> Has anyone been messing around with the vacuum line plumbing or working
> >>>> near any?
> >>>> Mike- Hide quoted text -
> >>>> - Show quoted text -
> >>> no thats what i meant in the first message. no one has worked on my
> >>> car but me and dont think i touched any vaccum lines
> >> I would first verify what bllsht pointed at, the fast idle cam being
> >> stuck as that is very common. The fix is a clean with carb cleaner spray.
>
> >> Next I would have the engine off and cold and give it two shots on the
> >> throttle like you should for a normal start, then open the air filter
> >> without starting it to verify the choke is closed.
>
> >> I was thinking electrical due to me misreading your clutch settings and
> >> agree the basics should be looked at before messing around.
>
> >> Mike- Hide quoted text -
>
> >> - Show quoted text -
>
> > i checked the cam but it is moving fine. when i hit the throttle the
> > cam moves as the screw lets it and the choke closed. when i started
> > the car the choke opened a little bit but still idled at 2000 and spit
> > gas out very fast.
>
> That sounds almost correct. It just sounds like a slight tune up
> adjustment is needed.
>
> It 'should' only idle at 1750 when first started.
>
> The choke linkage should have the fast idle cam sitting on the screw at
> the second from the end step when the engine is cold and off after
> punching the gas to close it. You then turn this screw to get it to
> come down to 1750 rpm once it starts.
>
> The next step should be around 1400 rpm and the first step should be
> around 1100 to 1200 rpm.
>
> I have mine so the first step is a 1200 rpm fast idle 'when warmed up'
> for my hand throttle and winch use which gives me the correct 'factory'
> setting of 1750 rpm at full choke when cold.
>
> If you don't have the factory book for your Jeep, the Haynes CJ manual
> is the best one for your engine and it's basic controls as well as the
> engine bay wiring harness which matches the 86 CJ7's 258.
>
> Oh, if you unplug the choke it just closes and the engine will not run
> for more than a couple minutes.
>
> You 'can' easily put a manual choke cable on it like I did, but yours
> sounds like it is almost working perfectly.
>
> Mike
> 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
> 88 Cherokee 235 BFG AT's
> Canadian Off Road Trips Photos: Non members can still view!
> Jan/06http://www.imagestation.com/album/pictures.html?id=2115147590
> (More Off Road album links at bottom of the view page)
this is the second time im writing this, i dont know why its not
showing up but anyways...i think the cam was stuck, i moved it by hand
when the car was on and the rpms dropped. ive been runnin the engine
and the choke seems to be working fine. also, is there a way to adjust
the air-rule mixture without a gauge.
> 88yj wrote:
> > On May 16, 9:15 am, Mike Romain <roma...@sympatico.ca> wrote:
> >> 88yj wrote:
> >>> On May 15, 2:29 pm, Mike Romain <roma...@sympatico.ca> wrote:
> >>>> 88yj wrote:
> >>>>> On May 15, 10:18 am, Mike Romain <roma...@sympatico.ca> wrote:
> >>>>>> The only thing I can think of that would be affected so much by just
> >>>>>> letting the clutch pedal out in neutral would be that the body has lost
> >>>>>> it's ground and is stealing one through the clutch pedal. I have seen
> >>>>>> that happen with the brake pedal and gas pedal and gear shift and radio
> >>>>>> and... anyway.
> >>>>>> There should be a wire mesh strap that runs from the rear of the engine
> >>>>>> head to the firewall. This does go bad.
> >>>>>> It doesn't sound like the choke is working proper either, but that would
> >>>>>> have no bearing on the position of the clutch pedal...
> >>>>>> A carb kit is only about $20.00 or so and is easy to put in them.
> >>>>>> Mike
> >>>>>> 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
> >>>>>> 88 Cherokee 235 BFG AT's
> >>>>>> Canadian Off Road Trips Photos: Non members can still view!
> >>>>>> Jan/06http://www.imagestation.com/album/pictures.html?id=2115147590
> >>>>>> (More Off Road album links at bottom of the view page)
> >>>>>> 88yj wrote:
> >>>>>>> i have an 88 wrangler yj and it starts fine but idles very high at
> >>>>>>> first. for the first 10 or 15 minutes it will idle at almost 3000
> >>>>>>> rpms when either in nuetral or when clutch is in. when i have the
> >>>>>>> clutch in half way it will idle at half that. when i put it in gear
> >>>>>>> it will take off as i gradually let off the clutch because the rpms
> >>>>>>> are so high. when the clutch is completely off the rpms are fine.
> >>>>>>> when i looked at the carburetor the choke was totaly open and there
> >>>>>>> was a lot of gas squirting out for just idling. i closed the choke a
> >>>>>>> little bit by hand and the rpms dropped but the gas was still coming
> >>>>>>> out at the same rate, as soon as i would let go the choke would open
> >>>>>>> back up and idle at 3000 again. i have the 4.2 liter straight 6.
> >>>>>>> anyone with an idea is greatly appreciated.
> >>>>> the clutch only has an effect when its in gear.
> >>>> OK, is this a new thing? Anything else happen or get changed?
> >>>> It idles proper at 650-700 when warmed up?
> >>>> A blown canister can cause a high idle, but that normally stays high.
> >>>> Some had this vacuum solenoid valve behind the carb that can blow an
> >>>> open into the PCV system if it isn't working right or is stuck. It
> >>>> should be affected by the engine warming up too.
> >>>> Has anyone been messing around with the vacuum line plumbing or working
> >>>> near any?
> >>>> Mike- Hide quoted text -
> >>>> - Show quoted text -
> >>> no thats what i meant in the first message. no one has worked on my
> >>> car but me and dont think i touched any vaccum lines
> >> I would first verify what bllsht pointed at, the fast idle cam being
> >> stuck as that is very common. The fix is a clean with carb cleaner spray.
>
> >> Next I would have the engine off and cold and give it two shots on the
> >> throttle like you should for a normal start, then open the air filter
> >> without starting it to verify the choke is closed.
>
> >> I was thinking electrical due to me misreading your clutch settings and
> >> agree the basics should be looked at before messing around.
>
> >> Mike- Hide quoted text -
>
> >> - Show quoted text -
>
> > i checked the cam but it is moving fine. when i hit the throttle the
> > cam moves as the screw lets it and the choke closed. when i started
> > the car the choke opened a little bit but still idled at 2000 and spit
> > gas out very fast.
>
> That sounds almost correct. It just sounds like a slight tune up
> adjustment is needed.
>
> It 'should' only idle at 1750 when first started.
>
> The choke linkage should have the fast idle cam sitting on the screw at
> the second from the end step when the engine is cold and off after
> punching the gas to close it. You then turn this screw to get it to
> come down to 1750 rpm once it starts.
>
> The next step should be around 1400 rpm and the first step should be
> around 1100 to 1200 rpm.
>
> I have mine so the first step is a 1200 rpm fast idle 'when warmed up'
> for my hand throttle and winch use which gives me the correct 'factory'
> setting of 1750 rpm at full choke when cold.
>
> If you don't have the factory book for your Jeep, the Haynes CJ manual
> is the best one for your engine and it's basic controls as well as the
> engine bay wiring harness which matches the 86 CJ7's 258.
>
> Oh, if you unplug the choke it just closes and the engine will not run
> for more than a couple minutes.
>
> You 'can' easily put a manual choke cable on it like I did, but yours
> sounds like it is almost working perfectly.
>
> Mike
> 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
> 88 Cherokee 235 BFG AT's
> Canadian Off Road Trips Photos: Non members can still view!
> Jan/06http://www.imagestation.com/album/pictures.html?id=2115147590
> (More Off Road album links at bottom of the view page)
this is the second time im writing this, i dont know why its not
showing up but anyways...i think the cam was stuck, i moved it by hand
when the car was on and the rpms dropped. ive been runnin the engine
and the choke seems to be working fine. also, is there a way to adjust
the air-rule mixture without a gauge.
05-16-2007, 03:46 PM
#57
Guest
Posts: n/a
Re: high idle
On May 16, 11:26 am, Mike Romain <roma...@sympatico.ca> wrote:
> 88yj wrote:
> > On May 16, 9:15 am, Mike Romain <roma...@sympatico.ca> wrote:
> >> 88yj wrote:
> >>> On May 15, 2:29 pm, Mike Romain <roma...@sympatico.ca> wrote:
> >>>> 88yj wrote:
> >>>>> On May 15, 10:18 am, Mike Romain <roma...@sympatico.ca> wrote:
> >>>>>> The only thing I can think of that would be affected so much by just
> >>>>>> letting the clutch pedal out in neutral would be that the body has lost
> >>>>>> it's ground and is stealing one through the clutch pedal. I have seen
> >>>>>> that happen with the brake pedal and gas pedal and gear shift and radio
> >>>>>> and... anyway.
> >>>>>> There should be a wire mesh strap that runs from the rear of the engine
> >>>>>> head to the firewall. This does go bad.
> >>>>>> It doesn't sound like the choke is working proper either, but that would
> >>>>>> have no bearing on the position of the clutch pedal...
> >>>>>> A carb kit is only about $20.00 or so and is easy to put in them.
> >>>>>> Mike
> >>>>>> 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
> >>>>>> 88 Cherokee 235 BFG AT's
> >>>>>> Canadian Off Road Trips Photos: Non members can still view!
> >>>>>> Jan/06http://www.imagestation.com/album/pictures.html?id=2115147590
> >>>>>> (More Off Road album links at bottom of the view page)
> >>>>>> 88yj wrote:
> >>>>>>> i have an 88 wrangler yj and it starts fine but idles very high at
> >>>>>>> first. for the first 10 or 15 minutes it will idle at almost 3000
> >>>>>>> rpms when either in nuetral or when clutch is in. when i have the
> >>>>>>> clutch in half way it will idle at half that. when i put it in gear
> >>>>>>> it will take off as i gradually let off the clutch because the rpms
> >>>>>>> are so high. when the clutch is completely off the rpms are fine.
> >>>>>>> when i looked at the carburetor the choke was totaly open and there
> >>>>>>> was a lot of gas squirting out for just idling. i closed the choke a
> >>>>>>> little bit by hand and the rpms dropped but the gas was still coming
> >>>>>>> out at the same rate, as soon as i would let go the choke would open
> >>>>>>> back up and idle at 3000 again. i have the 4.2 liter straight 6.
> >>>>>>> anyone with an idea is greatly appreciated.
> >>>>> the clutch only has an effect when its in gear.
> >>>> OK, is this a new thing? Anything else happen or get changed?
> >>>> It idles proper at 650-700 when warmed up?
> >>>> A blown canister can cause a high idle, but that normally stays high.
> >>>> Some had this vacuum solenoid valve behind the carb that can blow an
> >>>> open into the PCV system if it isn't working right or is stuck. It
> >>>> should be affected by the engine warming up too.
> >>>> Has anyone been messing around with the vacuum line plumbing or working
> >>>> near any?
> >>>> Mike- Hide quoted text -
> >>>> - Show quoted text -
> >>> no thats what i meant in the first message. no one has worked on my
> >>> car but me and dont think i touched any vaccum lines
> >> I would first verify what bllsht pointed at, the fast idle cam being
> >> stuck as that is very common. The fix is a clean with carb cleaner spray.
>
> >> Next I would have the engine off and cold and give it two shots on the
> >> throttle like you should for a normal start, then open the air filter
> >> without starting it to verify the choke is closed.
>
> >> I was thinking electrical due to me misreading your clutch settings and
> >> agree the basics should be looked at before messing around.
>
> >> Mike- Hide quoted text -
>
> >> - Show quoted text -
>
> > i checked the cam but it is moving fine. when i hit the throttle the
> > cam moves as the screw lets it and the choke closed. when i started
> > the car the choke opened a little bit but still idled at 2000 and spit
> > gas out very fast.
>
> That sounds almost correct. It just sounds like a slight tune up
> adjustment is needed.
>
> It 'should' only idle at 1750 when first started.
>
> The choke linkage should have the fast idle cam sitting on the screw at
> the second from the end step when the engine is cold and off after
> punching the gas to close it. You then turn this screw to get it to
> come down to 1750 rpm once it starts.
>
> The next step should be around 1400 rpm and the first step should be
> around 1100 to 1200 rpm.
>
> I have mine so the first step is a 1200 rpm fast idle 'when warmed up'
> for my hand throttle and winch use which gives me the correct 'factory'
> setting of 1750 rpm at full choke when cold.
>
> If you don't have the factory book for your Jeep, the Haynes CJ manual
> is the best one for your engine and it's basic controls as well as the
> engine bay wiring harness which matches the 86 CJ7's 258.
>
> Oh, if you unplug the choke it just closes and the engine will not run
> for more than a couple minutes.
>
> You 'can' easily put a manual choke cable on it like I did, but yours
> sounds like it is almost working perfectly.
>
> Mike
> 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
> 88 Cherokee 235 BFG AT's
> Canadian Off Road Trips Photos: Non members can still view!
> Jan/06http://www.imagestation.com/album/pictures.html?id=2115147590
> (More Off Road album links at bottom of the view page)
this is the second time im writing this, i dont know why its not
showing up but anyways...i think the cam was stuck, i moved it by hand
when the car was on and the rpms dropped. ive been runnin the engine
and the choke seems to be working fine. also, is there a way to adjust
the air-rule mixture without a gauge.
> 88yj wrote:
> > On May 16, 9:15 am, Mike Romain <roma...@sympatico.ca> wrote:
> >> 88yj wrote:
> >>> On May 15, 2:29 pm, Mike Romain <roma...@sympatico.ca> wrote:
> >>>> 88yj wrote:
> >>>>> On May 15, 10:18 am, Mike Romain <roma...@sympatico.ca> wrote:
> >>>>>> The only thing I can think of that would be affected so much by just
> >>>>>> letting the clutch pedal out in neutral would be that the body has lost
> >>>>>> it's ground and is stealing one through the clutch pedal. I have seen
> >>>>>> that happen with the brake pedal and gas pedal and gear shift and radio
> >>>>>> and... anyway.
> >>>>>> There should be a wire mesh strap that runs from the rear of the engine
> >>>>>> head to the firewall. This does go bad.
> >>>>>> It doesn't sound like the choke is working proper either, but that would
> >>>>>> have no bearing on the position of the clutch pedal...
> >>>>>> A carb kit is only about $20.00 or so and is easy to put in them.
> >>>>>> Mike
> >>>>>> 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
> >>>>>> 88 Cherokee 235 BFG AT's
> >>>>>> Canadian Off Road Trips Photos: Non members can still view!
> >>>>>> Jan/06http://www.imagestation.com/album/pictures.html?id=2115147590
> >>>>>> (More Off Road album links at bottom of the view page)
> >>>>>> 88yj wrote:
> >>>>>>> i have an 88 wrangler yj and it starts fine but idles very high at
> >>>>>>> first. for the first 10 or 15 minutes it will idle at almost 3000
> >>>>>>> rpms when either in nuetral or when clutch is in. when i have the
> >>>>>>> clutch in half way it will idle at half that. when i put it in gear
> >>>>>>> it will take off as i gradually let off the clutch because the rpms
> >>>>>>> are so high. when the clutch is completely off the rpms are fine.
> >>>>>>> when i looked at the carburetor the choke was totaly open and there
> >>>>>>> was a lot of gas squirting out for just idling. i closed the choke a
> >>>>>>> little bit by hand and the rpms dropped but the gas was still coming
> >>>>>>> out at the same rate, as soon as i would let go the choke would open
> >>>>>>> back up and idle at 3000 again. i have the 4.2 liter straight 6.
> >>>>>>> anyone with an idea is greatly appreciated.
> >>>>> the clutch only has an effect when its in gear.
> >>>> OK, is this a new thing? Anything else happen or get changed?
> >>>> It idles proper at 650-700 when warmed up?
> >>>> A blown canister can cause a high idle, but that normally stays high.
> >>>> Some had this vacuum solenoid valve behind the carb that can blow an
> >>>> open into the PCV system if it isn't working right or is stuck. It
> >>>> should be affected by the engine warming up too.
> >>>> Has anyone been messing around with the vacuum line plumbing or working
> >>>> near any?
> >>>> Mike- Hide quoted text -
> >>>> - Show quoted text -
> >>> no thats what i meant in the first message. no one has worked on my
> >>> car but me and dont think i touched any vaccum lines
> >> I would first verify what bllsht pointed at, the fast idle cam being
> >> stuck as that is very common. The fix is a clean with carb cleaner spray.
>
> >> Next I would have the engine off and cold and give it two shots on the
> >> throttle like you should for a normal start, then open the air filter
> >> without starting it to verify the choke is closed.
>
> >> I was thinking electrical due to me misreading your clutch settings and
> >> agree the basics should be looked at before messing around.
>
> >> Mike- Hide quoted text -
>
> >> - Show quoted text -
>
> > i checked the cam but it is moving fine. when i hit the throttle the
> > cam moves as the screw lets it and the choke closed. when i started
> > the car the choke opened a little bit but still idled at 2000 and spit
> > gas out very fast.
>
> That sounds almost correct. It just sounds like a slight tune up
> adjustment is needed.
>
> It 'should' only idle at 1750 when first started.
>
> The choke linkage should have the fast idle cam sitting on the screw at
> the second from the end step when the engine is cold and off after
> punching the gas to close it. You then turn this screw to get it to
> come down to 1750 rpm once it starts.
>
> The next step should be around 1400 rpm and the first step should be
> around 1100 to 1200 rpm.
>
> I have mine so the first step is a 1200 rpm fast idle 'when warmed up'
> for my hand throttle and winch use which gives me the correct 'factory'
> setting of 1750 rpm at full choke when cold.
>
> If you don't have the factory book for your Jeep, the Haynes CJ manual
> is the best one for your engine and it's basic controls as well as the
> engine bay wiring harness which matches the 86 CJ7's 258.
>
> Oh, if you unplug the choke it just closes and the engine will not run
> for more than a couple minutes.
>
> You 'can' easily put a manual choke cable on it like I did, but yours
> sounds like it is almost working perfectly.
>
> Mike
> 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
> 88 Cherokee 235 BFG AT's
> Canadian Off Road Trips Photos: Non members can still view!
> Jan/06http://www.imagestation.com/album/pictures.html?id=2115147590
> (More Off Road album links at bottom of the view page)
this is the second time im writing this, i dont know why its not
showing up but anyways...i think the cam was stuck, i moved it by hand
when the car was on and the rpms dropped. ive been runnin the engine
and the choke seems to be working fine. also, is there a way to adjust
the air-rule mixture without a gauge.
05-16-2007, 04:01 PM
#58
Guest
Posts: n/a
Re: high idle
<snip> when i started
>>> the car the choke opened a little bit but still idled at 2000 and spit
>>> gas out very fast.
>> That sounds almost correct. It just sounds like a slight tune up
>> adjustment is needed.
>>
>> It 'should' only idle at 1750 when first started.
>>
>> The choke linkage should have the fast idle cam sitting on the screw at
>> the second from the end step when the engine is cold and off after
>> punching the gas to close it. You then turn this screw to get it to
>> come down to 1750 rpm once it starts.
>>
>> The next step should be around 1400 rpm and the first step should be
>> around 1100 to 1200 rpm.
>>
>> I have mine so the first step is a 1200 rpm fast idle 'when warmed up'
>> for my hand throttle and winch use which gives me the correct 'factory'
>> setting of 1750 rpm at full choke when cold.
>>
>> If you don't have the factory book for your Jeep, the Haynes CJ manual
>> is the best one for your engine and it's basic controls as well as the
>> engine bay wiring harness which matches the 86 CJ7's 258.
>>
>> Oh, if you unplug the choke it just closes and the engine will not run
>> for more than a couple minutes.
>>
>> You 'can' easily put a manual choke cable on it like I did, but yours
>> sounds like it is almost working perfectly.
>>
>> Mike
>> 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
>> 88 Cherokee 235 BFG AT's
>> Canadian Off Road Trips Photos: Non members can still view!
>> Jan/06http://www.imagestation.com/album/pictures.html?id=2115147590
>> (More Off Road album links at bottom of the view page)- Hide quoted text -
>>
>> - Show quoted text -
>
> im actually starting to think that the cam was stuck somehow because
> when i moved it manualy the rpms dropped. thanks for the help with
> that. also, is there a way to adjust the air/fuel mixture without a
> gauge, i have a feeling its not set right due to the fact that i just
> got 28 miles from almost half a tank. i believe i know where the
> screws are to adjust it. theres two on the side closest to the front
> of the car towards the bottom of the carburetor, they also look like
> they are intentionly countersunk to prevent unwated movement. Im 90%
> sure its not the original carburetor so i doubt youll be able to tell
> me exactly where they are. but if there is a way cheaper than buying
> a gauge i would love to hear it
>
There is a computer adjusting the mixture via the O2 sensor and a POS
Ford emissions computer.
The mix screws down front are only for the idle and the base setup for
the carb. They are 'supposed' to be blocked off with a plug. They will
not affect gas mileage a lot.
You 'can' mess with the idle mix screws, but as soon as you get them out
of adjustment, the computer will kick in and adjust it back to where the
O2 sensor says it should be, Basically you can carefully look down the
carb and watch the pin at the center back of the carb move as you mess
with the idle mix screws. It should hover around half way out when the
mix is right.
You should also be able to see this pin move when you choke it a bit or
give it a bit of throttle. It moves in steps.
You 'really' don't want to start messing with the high speed mix inside
the carb.....
Has it ever passed emissions? Is all the emissions junk still on there?
Is it required where you live?
'I' can remove the emissions computer and still get all of them I have
done this to to pass emissions here in Canada easily, but I am really
good with carbs it would seem. Well, lots that call themselves
'mechanics' just plain don't believe no matter how may sets of pass
papers we show them but hey...
They just can't figure how a carb and engine can be tuned without a
computer running things, they don't know we used to do it all the time
in the analog days....
It is called the 'Nutter' bypass and is supposed to be for off road only
but with a few tricks it is fine for on road. It gives a sweet 25%
seat of the pants power boost with a red line of 4400 instead of 3500
and at least an extra 10 mph per gear. We also all get over 20 mpg with
them highway. Mine gets 11L/100km or about 23 mpg but it is light.
Mike
>>> the car the choke opened a little bit but still idled at 2000 and spit
>>> gas out very fast.
>> That sounds almost correct. It just sounds like a slight tune up
>> adjustment is needed.
>>
>> It 'should' only idle at 1750 when first started.
>>
>> The choke linkage should have the fast idle cam sitting on the screw at
>> the second from the end step when the engine is cold and off after
>> punching the gas to close it. You then turn this screw to get it to
>> come down to 1750 rpm once it starts.
>>
>> The next step should be around 1400 rpm and the first step should be
>> around 1100 to 1200 rpm.
>>
>> I have mine so the first step is a 1200 rpm fast idle 'when warmed up'
>> for my hand throttle and winch use which gives me the correct 'factory'
>> setting of 1750 rpm at full choke when cold.
>>
>> If you don't have the factory book for your Jeep, the Haynes CJ manual
>> is the best one for your engine and it's basic controls as well as the
>> engine bay wiring harness which matches the 86 CJ7's 258.
>>
>> Oh, if you unplug the choke it just closes and the engine will not run
>> for more than a couple minutes.
>>
>> You 'can' easily put a manual choke cable on it like I did, but yours
>> sounds like it is almost working perfectly.
>>
>> Mike
>> 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
>> 88 Cherokee 235 BFG AT's
>> Canadian Off Road Trips Photos: Non members can still view!
>> Jan/06http://www.imagestation.com/album/pictures.html?id=2115147590
>> (More Off Road album links at bottom of the view page)- Hide quoted text -
>>
>> - Show quoted text -
>
> im actually starting to think that the cam was stuck somehow because
> when i moved it manualy the rpms dropped. thanks for the help with
> that. also, is there a way to adjust the air/fuel mixture without a
> gauge, i have a feeling its not set right due to the fact that i just
> got 28 miles from almost half a tank. i believe i know where the
> screws are to adjust it. theres two on the side closest to the front
> of the car towards the bottom of the carburetor, they also look like
> they are intentionly countersunk to prevent unwated movement. Im 90%
> sure its not the original carburetor so i doubt youll be able to tell
> me exactly where they are. but if there is a way cheaper than buying
> a gauge i would love to hear it
>
There is a computer adjusting the mixture via the O2 sensor and a POS
Ford emissions computer.
The mix screws down front are only for the idle and the base setup for
the carb. They are 'supposed' to be blocked off with a plug. They will
not affect gas mileage a lot.
You 'can' mess with the idle mix screws, but as soon as you get them out
of adjustment, the computer will kick in and adjust it back to where the
O2 sensor says it should be, Basically you can carefully look down the
carb and watch the pin at the center back of the carb move as you mess
with the idle mix screws. It should hover around half way out when the
mix is right.
You should also be able to see this pin move when you choke it a bit or
give it a bit of throttle. It moves in steps.
You 'really' don't want to start messing with the high speed mix inside
the carb.....
Has it ever passed emissions? Is all the emissions junk still on there?
Is it required where you live?
'I' can remove the emissions computer and still get all of them I have
done this to to pass emissions here in Canada easily, but I am really
good with carbs it would seem. Well, lots that call themselves
'mechanics' just plain don't believe no matter how may sets of pass
papers we show them but hey...
They just can't figure how a carb and engine can be tuned without a
computer running things, they don't know we used to do it all the time
in the analog days....
It is called the 'Nutter' bypass and is supposed to be for off road only
but with a few tricks it is fine for on road. It gives a sweet 25%
seat of the pants power boost with a red line of 4400 instead of 3500
and at least an extra 10 mph per gear. We also all get over 20 mpg with
them highway. Mine gets 11L/100km or about 23 mpg but it is light.
Mike
05-16-2007, 04:01 PM
#59
Guest
Posts: n/a
Re: high idle
<snip> when i started
>>> the car the choke opened a little bit but still idled at 2000 and spit
>>> gas out very fast.
>> That sounds almost correct. It just sounds like a slight tune up
>> adjustment is needed.
>>
>> It 'should' only idle at 1750 when first started.
>>
>> The choke linkage should have the fast idle cam sitting on the screw at
>> the second from the end step when the engine is cold and off after
>> punching the gas to close it. You then turn this screw to get it to
>> come down to 1750 rpm once it starts.
>>
>> The next step should be around 1400 rpm and the first step should be
>> around 1100 to 1200 rpm.
>>
>> I have mine so the first step is a 1200 rpm fast idle 'when warmed up'
>> for my hand throttle and winch use which gives me the correct 'factory'
>> setting of 1750 rpm at full choke when cold.
>>
>> If you don't have the factory book for your Jeep, the Haynes CJ manual
>> is the best one for your engine and it's basic controls as well as the
>> engine bay wiring harness which matches the 86 CJ7's 258.
>>
>> Oh, if you unplug the choke it just closes and the engine will not run
>> for more than a couple minutes.
>>
>> You 'can' easily put a manual choke cable on it like I did, but yours
>> sounds like it is almost working perfectly.
>>
>> Mike
>> 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
>> 88 Cherokee 235 BFG AT's
>> Canadian Off Road Trips Photos: Non members can still view!
>> Jan/06http://www.imagestation.com/album/pictures.html?id=2115147590
>> (More Off Road album links at bottom of the view page)- Hide quoted text -
>>
>> - Show quoted text -
>
> im actually starting to think that the cam was stuck somehow because
> when i moved it manualy the rpms dropped. thanks for the help with
> that. also, is there a way to adjust the air/fuel mixture without a
> gauge, i have a feeling its not set right due to the fact that i just
> got 28 miles from almost half a tank. i believe i know where the
> screws are to adjust it. theres two on the side closest to the front
> of the car towards the bottom of the carburetor, they also look like
> they are intentionly countersunk to prevent unwated movement. Im 90%
> sure its not the original carburetor so i doubt youll be able to tell
> me exactly where they are. but if there is a way cheaper than buying
> a gauge i would love to hear it
>
There is a computer adjusting the mixture via the O2 sensor and a POS
Ford emissions computer.
The mix screws down front are only for the idle and the base setup for
the carb. They are 'supposed' to be blocked off with a plug. They will
not affect gas mileage a lot.
You 'can' mess with the idle mix screws, but as soon as you get them out
of adjustment, the computer will kick in and adjust it back to where the
O2 sensor says it should be, Basically you can carefully look down the
carb and watch the pin at the center back of the carb move as you mess
with the idle mix screws. It should hover around half way out when the
mix is right.
You should also be able to see this pin move when you choke it a bit or
give it a bit of throttle. It moves in steps.
You 'really' don't want to start messing with the high speed mix inside
the carb.....
Has it ever passed emissions? Is all the emissions junk still on there?
Is it required where you live?
'I' can remove the emissions computer and still get all of them I have
done this to to pass emissions here in Canada easily, but I am really
good with carbs it would seem. Well, lots that call themselves
'mechanics' just plain don't believe no matter how may sets of pass
papers we show them but hey...
They just can't figure how a carb and engine can be tuned without a
computer running things, they don't know we used to do it all the time
in the analog days....
It is called the 'Nutter' bypass and is supposed to be for off road only
but with a few tricks it is fine for on road. It gives a sweet 25%
seat of the pants power boost with a red line of 4400 instead of 3500
and at least an extra 10 mph per gear. We also all get over 20 mpg with
them highway. Mine gets 11L/100km or about 23 mpg but it is light.
Mike
>>> the car the choke opened a little bit but still idled at 2000 and spit
>>> gas out very fast.
>> That sounds almost correct. It just sounds like a slight tune up
>> adjustment is needed.
>>
>> It 'should' only idle at 1750 when first started.
>>
>> The choke linkage should have the fast idle cam sitting on the screw at
>> the second from the end step when the engine is cold and off after
>> punching the gas to close it. You then turn this screw to get it to
>> come down to 1750 rpm once it starts.
>>
>> The next step should be around 1400 rpm and the first step should be
>> around 1100 to 1200 rpm.
>>
>> I have mine so the first step is a 1200 rpm fast idle 'when warmed up'
>> for my hand throttle and winch use which gives me the correct 'factory'
>> setting of 1750 rpm at full choke when cold.
>>
>> If you don't have the factory book for your Jeep, the Haynes CJ manual
>> is the best one for your engine and it's basic controls as well as the
>> engine bay wiring harness which matches the 86 CJ7's 258.
>>
>> Oh, if you unplug the choke it just closes and the engine will not run
>> for more than a couple minutes.
>>
>> You 'can' easily put a manual choke cable on it like I did, but yours
>> sounds like it is almost working perfectly.
>>
>> Mike
>> 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
>> 88 Cherokee 235 BFG AT's
>> Canadian Off Road Trips Photos: Non members can still view!
>> Jan/06http://www.imagestation.com/album/pictures.html?id=2115147590
>> (More Off Road album links at bottom of the view page)- Hide quoted text -
>>
>> - Show quoted text -
>
> im actually starting to think that the cam was stuck somehow because
> when i moved it manualy the rpms dropped. thanks for the help with
> that. also, is there a way to adjust the air/fuel mixture without a
> gauge, i have a feeling its not set right due to the fact that i just
> got 28 miles from almost half a tank. i believe i know where the
> screws are to adjust it. theres two on the side closest to the front
> of the car towards the bottom of the carburetor, they also look like
> they are intentionly countersunk to prevent unwated movement. Im 90%
> sure its not the original carburetor so i doubt youll be able to tell
> me exactly where they are. but if there is a way cheaper than buying
> a gauge i would love to hear it
>
There is a computer adjusting the mixture via the O2 sensor and a POS
Ford emissions computer.
The mix screws down front are only for the idle and the base setup for
the carb. They are 'supposed' to be blocked off with a plug. They will
not affect gas mileage a lot.
You 'can' mess with the idle mix screws, but as soon as you get them out
of adjustment, the computer will kick in and adjust it back to where the
O2 sensor says it should be, Basically you can carefully look down the
carb and watch the pin at the center back of the carb move as you mess
with the idle mix screws. It should hover around half way out when the
mix is right.
You should also be able to see this pin move when you choke it a bit or
give it a bit of throttle. It moves in steps.
You 'really' don't want to start messing with the high speed mix inside
the carb.....
Has it ever passed emissions? Is all the emissions junk still on there?
Is it required where you live?
'I' can remove the emissions computer and still get all of them I have
done this to to pass emissions here in Canada easily, but I am really
good with carbs it would seem. Well, lots that call themselves
'mechanics' just plain don't believe no matter how may sets of pass
papers we show them but hey...
They just can't figure how a carb and engine can be tuned without a
computer running things, they don't know we used to do it all the time
in the analog days....
It is called the 'Nutter' bypass and is supposed to be for off road only
but with a few tricks it is fine for on road. It gives a sweet 25%
seat of the pants power boost with a red line of 4400 instead of 3500
and at least an extra 10 mph per gear. We also all get over 20 mpg with
them highway. Mine gets 11L/100km or about 23 mpg but it is light.
Mike
05-16-2007, 04:01 PM
#60
Guest
Posts: n/a
Re: high idle
<snip> when i started
>>> the car the choke opened a little bit but still idled at 2000 and spit
>>> gas out very fast.
>> That sounds almost correct. It just sounds like a slight tune up
>> adjustment is needed.
>>
>> It 'should' only idle at 1750 when first started.
>>
>> The choke linkage should have the fast idle cam sitting on the screw at
>> the second from the end step when the engine is cold and off after
>> punching the gas to close it. You then turn this screw to get it to
>> come down to 1750 rpm once it starts.
>>
>> The next step should be around 1400 rpm and the first step should be
>> around 1100 to 1200 rpm.
>>
>> I have mine so the first step is a 1200 rpm fast idle 'when warmed up'
>> for my hand throttle and winch use which gives me the correct 'factory'
>> setting of 1750 rpm at full choke when cold.
>>
>> If you don't have the factory book for your Jeep, the Haynes CJ manual
>> is the best one for your engine and it's basic controls as well as the
>> engine bay wiring harness which matches the 86 CJ7's 258.
>>
>> Oh, if you unplug the choke it just closes and the engine will not run
>> for more than a couple minutes.
>>
>> You 'can' easily put a manual choke cable on it like I did, but yours
>> sounds like it is almost working perfectly.
>>
>> Mike
>> 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
>> 88 Cherokee 235 BFG AT's
>> Canadian Off Road Trips Photos: Non members can still view!
>> Jan/06http://www.imagestation.com/album/pictures.html?id=2115147590
>> (More Off Road album links at bottom of the view page)- Hide quoted text -
>>
>> - Show quoted text -
>
> im actually starting to think that the cam was stuck somehow because
> when i moved it manualy the rpms dropped. thanks for the help with
> that. also, is there a way to adjust the air/fuel mixture without a
> gauge, i have a feeling its not set right due to the fact that i just
> got 28 miles from almost half a tank. i believe i know where the
> screws are to adjust it. theres two on the side closest to the front
> of the car towards the bottom of the carburetor, they also look like
> they are intentionly countersunk to prevent unwated movement. Im 90%
> sure its not the original carburetor so i doubt youll be able to tell
> me exactly where they are. but if there is a way cheaper than buying
> a gauge i would love to hear it
>
There is a computer adjusting the mixture via the O2 sensor and a POS
Ford emissions computer.
The mix screws down front are only for the idle and the base setup for
the carb. They are 'supposed' to be blocked off with a plug. They will
not affect gas mileage a lot.
You 'can' mess with the idle mix screws, but as soon as you get them out
of adjustment, the computer will kick in and adjust it back to where the
O2 sensor says it should be, Basically you can carefully look down the
carb and watch the pin at the center back of the carb move as you mess
with the idle mix screws. It should hover around half way out when the
mix is right.
You should also be able to see this pin move when you choke it a bit or
give it a bit of throttle. It moves in steps.
You 'really' don't want to start messing with the high speed mix inside
the carb.....
Has it ever passed emissions? Is all the emissions junk still on there?
Is it required where you live?
'I' can remove the emissions computer and still get all of them I have
done this to to pass emissions here in Canada easily, but I am really
good with carbs it would seem. Well, lots that call themselves
'mechanics' just plain don't believe no matter how may sets of pass
papers we show them but hey...
They just can't figure how a carb and engine can be tuned without a
computer running things, they don't know we used to do it all the time
in the analog days....
It is called the 'Nutter' bypass and is supposed to be for off road only
but with a few tricks it is fine for on road. It gives a sweet 25%
seat of the pants power boost with a red line of 4400 instead of 3500
and at least an extra 10 mph per gear. We also all get over 20 mpg with
them highway. Mine gets 11L/100km or about 23 mpg but it is light.
Mike
>>> the car the choke opened a little bit but still idled at 2000 and spit
>>> gas out very fast.
>> That sounds almost correct. It just sounds like a slight tune up
>> adjustment is needed.
>>
>> It 'should' only idle at 1750 when first started.
>>
>> The choke linkage should have the fast idle cam sitting on the screw at
>> the second from the end step when the engine is cold and off after
>> punching the gas to close it. You then turn this screw to get it to
>> come down to 1750 rpm once it starts.
>>
>> The next step should be around 1400 rpm and the first step should be
>> around 1100 to 1200 rpm.
>>
>> I have mine so the first step is a 1200 rpm fast idle 'when warmed up'
>> for my hand throttle and winch use which gives me the correct 'factory'
>> setting of 1750 rpm at full choke when cold.
>>
>> If you don't have the factory book for your Jeep, the Haynes CJ manual
>> is the best one for your engine and it's basic controls as well as the
>> engine bay wiring harness which matches the 86 CJ7's 258.
>>
>> Oh, if you unplug the choke it just closes and the engine will not run
>> for more than a couple minutes.
>>
>> You 'can' easily put a manual choke cable on it like I did, but yours
>> sounds like it is almost working perfectly.
>>
>> Mike
>> 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
>> 88 Cherokee 235 BFG AT's
>> Canadian Off Road Trips Photos: Non members can still view!
>> Jan/06http://www.imagestation.com/album/pictures.html?id=2115147590
>> (More Off Road album links at bottom of the view page)- Hide quoted text -
>>
>> - Show quoted text -
>
> im actually starting to think that the cam was stuck somehow because
> when i moved it manualy the rpms dropped. thanks for the help with
> that. also, is there a way to adjust the air/fuel mixture without a
> gauge, i have a feeling its not set right due to the fact that i just
> got 28 miles from almost half a tank. i believe i know where the
> screws are to adjust it. theres two on the side closest to the front
> of the car towards the bottom of the carburetor, they also look like
> they are intentionly countersunk to prevent unwated movement. Im 90%
> sure its not the original carburetor so i doubt youll be able to tell
> me exactly where they are. but if there is a way cheaper than buying
> a gauge i would love to hear it
>
There is a computer adjusting the mixture via the O2 sensor and a POS
Ford emissions computer.
The mix screws down front are only for the idle and the base setup for
the carb. They are 'supposed' to be blocked off with a plug. They will
not affect gas mileage a lot.
You 'can' mess with the idle mix screws, but as soon as you get them out
of adjustment, the computer will kick in and adjust it back to where the
O2 sensor says it should be, Basically you can carefully look down the
carb and watch the pin at the center back of the carb move as you mess
with the idle mix screws. It should hover around half way out when the
mix is right.
You should also be able to see this pin move when you choke it a bit or
give it a bit of throttle. It moves in steps.
You 'really' don't want to start messing with the high speed mix inside
the carb.....
Has it ever passed emissions? Is all the emissions junk still on there?
Is it required where you live?
'I' can remove the emissions computer and still get all of them I have
done this to to pass emissions here in Canada easily, but I am really
good with carbs it would seem. Well, lots that call themselves
'mechanics' just plain don't believe no matter how may sets of pass
papers we show them but hey...
They just can't figure how a carb and engine can be tuned without a
computer running things, they don't know we used to do it all the time
in the analog days....
It is called the 'Nutter' bypass and is supposed to be for off road only
but with a few tricks it is fine for on road. It gives a sweet 25%
seat of the pants power boost with a red line of 4400 instead of 3500
and at least an extra 10 mph per gear. We also all get over 20 mpg with
them highway. Mine gets 11L/100km or about 23 mpg but it is light.
Mike
