ignition questions?
06-12-2004, 12:03 AM
#51
Guest
Posts: n/a
Re: ignition questions?
I'm pretty sure the vacuum advance on the 258 IS adjustable. I know for sure
the V8 engines were. It's takes a 1/8" allen wrench inserted into the vacuum
nipple to adjust it.
In message <JNsyc.12624$Fd.11018@twister.rdc-kc.rr.com>, "c" wrote:
>Carmine,
>After thinking about this a bit, your RV cam could be building more cylinder
>pressure than the stock cam did. These cams generally have a short duration,
>high lift lobe profile. The extra cylinder pressure could be causing the
>pinging. With that said, you may want to try another approach by using an
>adjustable vacuum advance kit. Crane and others make them, but I don't know
>if they make them for your engine. They do make them for the GM HEI though,
>and this may be a good time to do this swap if you want. The adjustable vac.
>advance will allow you to adjust how much advance, and at what vacuum
>reading it starts. The kits also come with centrifugal weight springs
>similar to what you have installed already. Here is a link to the product:
>
>http://www.cranecams.com/index.php?s...s&lvl=3&prt=29
>
>Chris
>
>
>"carmine colangelo" <carmine7@optonline.net> wrote in message
>news:Njryc.11796$0g3.3315692@news4.srv.hcvlny.cv. net...
>> yeah it sure did dump out some white smoke. even more smoke than the 2
>> stokes i'm used to working on. but i still cant get the timing above 7
>> degrees with out pinging. are there different vacume advances i can bolt
>to
>> the distributer? it seems to me i need more advance on cold starts and
>less
>> timing advance around 2500 rpm's when i am coming up a hill. i'm just not
>> sure how to go about doing it.
>> thanks carmine
>>
>> "Mike Romain" <romainm@sympatico.ca> wrote in message
>> news:40CA3B4C.EAB6C04B@sympatico.ca...
>> > I have seen lots of folks miss that wiring bit, so it is worth checking.
>> >
>> > Pour the ATF slow while keeping it running and be warned it 'will' give
>> > off one massive white smoke cloud.
>> >
>> > Mike
>> >
>> > carmine colangelo wrote:
>> > >
>> > > i traced the purple wire from the ignition module and it goes to the
>> > > distributer. i dont think the computer is even on the jeep any more.
>it
>> was
>> > > removed before i bought it. i will try putting a pint of ATF in it to
>> remove
>> > > some of the carbon
>> > > thanks carmine
>> > >
>> > > "Mike Romain" <romainm@sympatico.ca> wrote in message
>> > > news:40CA1FCD.DC9DABA5@sympatico.ca...
>> > > > Do you physically have the ignition module connected directly to the
>> > > > distributor or does it still go through the computer?
>> > > >
>> > > > The reason I ask is if the computer is still a physical presence,
>then
>> > > > it has gone into limp home mode which messes with the timing advance
>> big
>> > > > time.
>> > > >
>> > > > You can tell by looking at the ignition module, waaayyy down under
>the
>> > > > washer bottle. Check the purple wire coming out of the module. If
>it
>> > > > isn't jumpered to a new wire, you have issues right there. Stock,
>the
>> > > > purple wire goes nowhere, it stops at the first plug.
>> > > >
>> > > > If you remove any emissions stuff, the ignition has to be rewired to
>> > > > work right. It is easy, I always add two new wires rather than mess
>> > > > inside the harness. http://home.sprynet.com/~dale02/ignmods.htm
>> > > >
>> > > > One other thing is carbon build up. That RV cam and running low RPM
>> are
>> > > > really bad for carbon build up. This will cause pinging.
>> > > >
>> > > > I run a pint of ATF slowly down the throat of the carb while keeping
>> it
>> > > > running with my hand on the throttle. It cleans the carbon out
>great.
>> > > > Some folks use a pint of water to do this and say it works well too.
>> > > >
>> > > > Mike
>> > > >
>> > > > carmine colangelo wrote:
>> > > > >
>> > > > > i am running a weber carb with the vacume advance taken off of the
>> base
>> > > of
>> > > > > ther carb.so i would assume this is manifold vacume. as far as i
>> know
>> > > the
>> > > > > vacume advance is stock. i am running a one line fuel filter with
>a
>> > > pressure
>> > > > > regulator. i dont know if stock timing would apply to my jeep
>> because it
>> > > is
>> > > > > a 86 with a r.v. cam and all the computer and emmision stuff taken
>> off.
>> > > > > thanks carmine
>> > > > >
>> > > > > "Mike Romain" <romainm@sympatico.ca> wrote in message
>> > > > > news:40C9C480.E0C7EDEC@sympatico.ca...
>> > > > > > What kind of carb are you running?
>> > > > > >
>> > > > > > Do you have the correct gas filter in it and is it in right side
>> up?
>> > > > > >
>> > > > > > Which vacuum advance are you running?
>> > > > > >
>> > > > > > Mike
>> > > > > > 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
>> > > > > > 88 Cherokee 235 BFG AT's
>> > > > > >
>> > > > > > carmine colangelo wrote:
>> > > > > > >
>> > > > > > > with the gas prices going so high i am tying to get my 1986
>jeep
>> cj7
>> > > 258
>> > > > > 6
>> > > > > > > cyl with a r.v. cam (for low torque) to run on pump gas. i
>have
>> a
>> > > msd ss
>> > > > > > > coil, lighter centrifigal advance spring in it. i was running
>12
>> > > degrees
>> > > > > > > advance on super unleaded and had to go all the way down to 6
>> > > degrees to
>> > > > > get
>> > > > > > > it to stop pinging up hills. but now it is allot harder to
>start
>> > > when it
>> > > > > is
>> > > > > > > cold. anyone have any ideas what i could do to get it to start
>> > > better?
>> > > > > is 6
>> > > > > > > degrees to low on the timing? should i put the stock
>centrifigal
>> > > spring
>> > > > > back
>> > > > > > > in it to not get so much advance at higher rpm's? i just want
>to
>> get
>> > > the
>> > > > > > > jeep to run on pump gas and start nice. thanks carmine
>>
>>
>
the V8 engines were. It's takes a 1/8" allen wrench inserted into the vacuum
nipple to adjust it.
In message <JNsyc.12624$Fd.11018@twister.rdc-kc.rr.com>, "c" wrote:
>Carmine,
>After thinking about this a bit, your RV cam could be building more cylinder
>pressure than the stock cam did. These cams generally have a short duration,
>high lift lobe profile. The extra cylinder pressure could be causing the
>pinging. With that said, you may want to try another approach by using an
>adjustable vacuum advance kit. Crane and others make them, but I don't know
>if they make them for your engine. They do make them for the GM HEI though,
>and this may be a good time to do this swap if you want. The adjustable vac.
>advance will allow you to adjust how much advance, and at what vacuum
>reading it starts. The kits also come with centrifugal weight springs
>similar to what you have installed already. Here is a link to the product:
>
>http://www.cranecams.com/index.php?s...s&lvl=3&prt=29
>
>Chris
>
>
>"carmine colangelo" <carmine7@optonline.net> wrote in message
>news:Njryc.11796$0g3.3315692@news4.srv.hcvlny.cv. net...
>> yeah it sure did dump out some white smoke. even more smoke than the 2
>> stokes i'm used to working on. but i still cant get the timing above 7
>> degrees with out pinging. are there different vacume advances i can bolt
>to
>> the distributer? it seems to me i need more advance on cold starts and
>less
>> timing advance around 2500 rpm's when i am coming up a hill. i'm just not
>> sure how to go about doing it.
>> thanks carmine
>>
>> "Mike Romain" <romainm@sympatico.ca> wrote in message
>> news:40CA3B4C.EAB6C04B@sympatico.ca...
>> > I have seen lots of folks miss that wiring bit, so it is worth checking.
>> >
>> > Pour the ATF slow while keeping it running and be warned it 'will' give
>> > off one massive white smoke cloud.
>> >
>> > Mike
>> >
>> > carmine colangelo wrote:
>> > >
>> > > i traced the purple wire from the ignition module and it goes to the
>> > > distributer. i dont think the computer is even on the jeep any more.
>it
>> was
>> > > removed before i bought it. i will try putting a pint of ATF in it to
>> remove
>> > > some of the carbon
>> > > thanks carmine
>> > >
>> > > "Mike Romain" <romainm@sympatico.ca> wrote in message
>> > > news:40CA1FCD.DC9DABA5@sympatico.ca...
>> > > > Do you physically have the ignition module connected directly to the
>> > > > distributor or does it still go through the computer?
>> > > >
>> > > > The reason I ask is if the computer is still a physical presence,
>then
>> > > > it has gone into limp home mode which messes with the timing advance
>> big
>> > > > time.
>> > > >
>> > > > You can tell by looking at the ignition module, waaayyy down under
>the
>> > > > washer bottle. Check the purple wire coming out of the module. If
>it
>> > > > isn't jumpered to a new wire, you have issues right there. Stock,
>the
>> > > > purple wire goes nowhere, it stops at the first plug.
>> > > >
>> > > > If you remove any emissions stuff, the ignition has to be rewired to
>> > > > work right. It is easy, I always add two new wires rather than mess
>> > > > inside the harness. http://home.sprynet.com/~dale02/ignmods.htm
>> > > >
>> > > > One other thing is carbon build up. That RV cam and running low RPM
>> are
>> > > > really bad for carbon build up. This will cause pinging.
>> > > >
>> > > > I run a pint of ATF slowly down the throat of the carb while keeping
>> it
>> > > > running with my hand on the throttle. It cleans the carbon out
>great.
>> > > > Some folks use a pint of water to do this and say it works well too.
>> > > >
>> > > > Mike
>> > > >
>> > > > carmine colangelo wrote:
>> > > > >
>> > > > > i am running a weber carb with the vacume advance taken off of the
>> base
>> > > of
>> > > > > ther carb.so i would assume this is manifold vacume. as far as i
>> know
>> > > the
>> > > > > vacume advance is stock. i am running a one line fuel filter with
>a
>> > > pressure
>> > > > > regulator. i dont know if stock timing would apply to my jeep
>> because it
>> > > is
>> > > > > a 86 with a r.v. cam and all the computer and emmision stuff taken
>> off.
>> > > > > thanks carmine
>> > > > >
>> > > > > "Mike Romain" <romainm@sympatico.ca> wrote in message
>> > > > > news:40C9C480.E0C7EDEC@sympatico.ca...
>> > > > > > What kind of carb are you running?
>> > > > > >
>> > > > > > Do you have the correct gas filter in it and is it in right side
>> up?
>> > > > > >
>> > > > > > Which vacuum advance are you running?
>> > > > > >
>> > > > > > Mike
>> > > > > > 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
>> > > > > > 88 Cherokee 235 BFG AT's
>> > > > > >
>> > > > > > carmine colangelo wrote:
>> > > > > > >
>> > > > > > > with the gas prices going so high i am tying to get my 1986
>jeep
>> cj7
>> > > 258
>> > > > > 6
>> > > > > > > cyl with a r.v. cam (for low torque) to run on pump gas. i
>have
>> a
>> > > msd ss
>> > > > > > > coil, lighter centrifigal advance spring in it. i was running
>12
>> > > degrees
>> > > > > > > advance on super unleaded and had to go all the way down to 6
>> > > degrees to
>> > > > > get
>> > > > > > > it to stop pinging up hills. but now it is allot harder to
>start
>> > > when it
>> > > > > is
>> > > > > > > cold. anyone have any ideas what i could do to get it to start
>> > > better?
>> > > > > is 6
>> > > > > > > degrees to low on the timing? should i put the stock
>centrifigal
>> > > spring
>> > > > > back
>> > > > > > > in it to not get so much advance at higher rpm's? i just want
>to
>> get
>> > > the
>> > > > > > > jeep to run on pump gas and start nice. thanks carmine
>>
>>
>
06-12-2004, 12:03 AM
#52
Guest
Posts: n/a
Re: ignition questions?
I'm pretty sure the vacuum advance on the 258 IS adjustable. I know for sure
the V8 engines were. It's takes a 1/8" allen wrench inserted into the vacuum
nipple to adjust it.
In message <JNsyc.12624$Fd.11018@twister.rdc-kc.rr.com>, "c" wrote:
>Carmine,
>After thinking about this a bit, your RV cam could be building more cylinder
>pressure than the stock cam did. These cams generally have a short duration,
>high lift lobe profile. The extra cylinder pressure could be causing the
>pinging. With that said, you may want to try another approach by using an
>adjustable vacuum advance kit. Crane and others make them, but I don't know
>if they make them for your engine. They do make them for the GM HEI though,
>and this may be a good time to do this swap if you want. The adjustable vac.
>advance will allow you to adjust how much advance, and at what vacuum
>reading it starts. The kits also come with centrifugal weight springs
>similar to what you have installed already. Here is a link to the product:
>
>http://www.cranecams.com/index.php?s...s&lvl=3&prt=29
>
>Chris
>
>
>"carmine colangelo" <carmine7@optonline.net> wrote in message
>news:Njryc.11796$0g3.3315692@news4.srv.hcvlny.cv. net...
>> yeah it sure did dump out some white smoke. even more smoke than the 2
>> stokes i'm used to working on. but i still cant get the timing above 7
>> degrees with out pinging. are there different vacume advances i can bolt
>to
>> the distributer? it seems to me i need more advance on cold starts and
>less
>> timing advance around 2500 rpm's when i am coming up a hill. i'm just not
>> sure how to go about doing it.
>> thanks carmine
>>
>> "Mike Romain" <romainm@sympatico.ca> wrote in message
>> news:40CA3B4C.EAB6C04B@sympatico.ca...
>> > I have seen lots of folks miss that wiring bit, so it is worth checking.
>> >
>> > Pour the ATF slow while keeping it running and be warned it 'will' give
>> > off one massive white smoke cloud.
>> >
>> > Mike
>> >
>> > carmine colangelo wrote:
>> > >
>> > > i traced the purple wire from the ignition module and it goes to the
>> > > distributer. i dont think the computer is even on the jeep any more.
>it
>> was
>> > > removed before i bought it. i will try putting a pint of ATF in it to
>> remove
>> > > some of the carbon
>> > > thanks carmine
>> > >
>> > > "Mike Romain" <romainm@sympatico.ca> wrote in message
>> > > news:40CA1FCD.DC9DABA5@sympatico.ca...
>> > > > Do you physically have the ignition module connected directly to the
>> > > > distributor or does it still go through the computer?
>> > > >
>> > > > The reason I ask is if the computer is still a physical presence,
>then
>> > > > it has gone into limp home mode which messes with the timing advance
>> big
>> > > > time.
>> > > >
>> > > > You can tell by looking at the ignition module, waaayyy down under
>the
>> > > > washer bottle. Check the purple wire coming out of the module. If
>it
>> > > > isn't jumpered to a new wire, you have issues right there. Stock,
>the
>> > > > purple wire goes nowhere, it stops at the first plug.
>> > > >
>> > > > If you remove any emissions stuff, the ignition has to be rewired to
>> > > > work right. It is easy, I always add two new wires rather than mess
>> > > > inside the harness. http://home.sprynet.com/~dale02/ignmods.htm
>> > > >
>> > > > One other thing is carbon build up. That RV cam and running low RPM
>> are
>> > > > really bad for carbon build up. This will cause pinging.
>> > > >
>> > > > I run a pint of ATF slowly down the throat of the carb while keeping
>> it
>> > > > running with my hand on the throttle. It cleans the carbon out
>great.
>> > > > Some folks use a pint of water to do this and say it works well too.
>> > > >
>> > > > Mike
>> > > >
>> > > > carmine colangelo wrote:
>> > > > >
>> > > > > i am running a weber carb with the vacume advance taken off of the
>> base
>> > > of
>> > > > > ther carb.so i would assume this is manifold vacume. as far as i
>> know
>> > > the
>> > > > > vacume advance is stock. i am running a one line fuel filter with
>a
>> > > pressure
>> > > > > regulator. i dont know if stock timing would apply to my jeep
>> because it
>> > > is
>> > > > > a 86 with a r.v. cam and all the computer and emmision stuff taken
>> off.
>> > > > > thanks carmine
>> > > > >
>> > > > > "Mike Romain" <romainm@sympatico.ca> wrote in message
>> > > > > news:40C9C480.E0C7EDEC@sympatico.ca...
>> > > > > > What kind of carb are you running?
>> > > > > >
>> > > > > > Do you have the correct gas filter in it and is it in right side
>> up?
>> > > > > >
>> > > > > > Which vacuum advance are you running?
>> > > > > >
>> > > > > > Mike
>> > > > > > 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
>> > > > > > 88 Cherokee 235 BFG AT's
>> > > > > >
>> > > > > > carmine colangelo wrote:
>> > > > > > >
>> > > > > > > with the gas prices going so high i am tying to get my 1986
>jeep
>> cj7
>> > > 258
>> > > > > 6
>> > > > > > > cyl with a r.v. cam (for low torque) to run on pump gas. i
>have
>> a
>> > > msd ss
>> > > > > > > coil, lighter centrifigal advance spring in it. i was running
>12
>> > > degrees
>> > > > > > > advance on super unleaded and had to go all the way down to 6
>> > > degrees to
>> > > > > get
>> > > > > > > it to stop pinging up hills. but now it is allot harder to
>start
>> > > when it
>> > > > > is
>> > > > > > > cold. anyone have any ideas what i could do to get it to start
>> > > better?
>> > > > > is 6
>> > > > > > > degrees to low on the timing? should i put the stock
>centrifigal
>> > > spring
>> > > > > back
>> > > > > > > in it to not get so much advance at higher rpm's? i just want
>to
>> get
>> > > the
>> > > > > > > jeep to run on pump gas and start nice. thanks carmine
>>
>>
>
the V8 engines were. It's takes a 1/8" allen wrench inserted into the vacuum
nipple to adjust it.
In message <JNsyc.12624$Fd.11018@twister.rdc-kc.rr.com>, "c" wrote:
>Carmine,
>After thinking about this a bit, your RV cam could be building more cylinder
>pressure than the stock cam did. These cams generally have a short duration,
>high lift lobe profile. The extra cylinder pressure could be causing the
>pinging. With that said, you may want to try another approach by using an
>adjustable vacuum advance kit. Crane and others make them, but I don't know
>if they make them for your engine. They do make them for the GM HEI though,
>and this may be a good time to do this swap if you want. The adjustable vac.
>advance will allow you to adjust how much advance, and at what vacuum
>reading it starts. The kits also come with centrifugal weight springs
>similar to what you have installed already. Here is a link to the product:
>
>http://www.cranecams.com/index.php?s...s&lvl=3&prt=29
>
>Chris
>
>
>"carmine colangelo" <carmine7@optonline.net> wrote in message
>news:Njryc.11796$0g3.3315692@news4.srv.hcvlny.cv. net...
>> yeah it sure did dump out some white smoke. even more smoke than the 2
>> stokes i'm used to working on. but i still cant get the timing above 7
>> degrees with out pinging. are there different vacume advances i can bolt
>to
>> the distributer? it seems to me i need more advance on cold starts and
>less
>> timing advance around 2500 rpm's when i am coming up a hill. i'm just not
>> sure how to go about doing it.
>> thanks carmine
>>
>> "Mike Romain" <romainm@sympatico.ca> wrote in message
>> news:40CA3B4C.EAB6C04B@sympatico.ca...
>> > I have seen lots of folks miss that wiring bit, so it is worth checking.
>> >
>> > Pour the ATF slow while keeping it running and be warned it 'will' give
>> > off one massive white smoke cloud.
>> >
>> > Mike
>> >
>> > carmine colangelo wrote:
>> > >
>> > > i traced the purple wire from the ignition module and it goes to the
>> > > distributer. i dont think the computer is even on the jeep any more.
>it
>> was
>> > > removed before i bought it. i will try putting a pint of ATF in it to
>> remove
>> > > some of the carbon
>> > > thanks carmine
>> > >
>> > > "Mike Romain" <romainm@sympatico.ca> wrote in message
>> > > news:40CA1FCD.DC9DABA5@sympatico.ca...
>> > > > Do you physically have the ignition module connected directly to the
>> > > > distributor or does it still go through the computer?
>> > > >
>> > > > The reason I ask is if the computer is still a physical presence,
>then
>> > > > it has gone into limp home mode which messes with the timing advance
>> big
>> > > > time.
>> > > >
>> > > > You can tell by looking at the ignition module, waaayyy down under
>the
>> > > > washer bottle. Check the purple wire coming out of the module. If
>it
>> > > > isn't jumpered to a new wire, you have issues right there. Stock,
>the
>> > > > purple wire goes nowhere, it stops at the first plug.
>> > > >
>> > > > If you remove any emissions stuff, the ignition has to be rewired to
>> > > > work right. It is easy, I always add two new wires rather than mess
>> > > > inside the harness. http://home.sprynet.com/~dale02/ignmods.htm
>> > > >
>> > > > One other thing is carbon build up. That RV cam and running low RPM
>> are
>> > > > really bad for carbon build up. This will cause pinging.
>> > > >
>> > > > I run a pint of ATF slowly down the throat of the carb while keeping
>> it
>> > > > running with my hand on the throttle. It cleans the carbon out
>great.
>> > > > Some folks use a pint of water to do this and say it works well too.
>> > > >
>> > > > Mike
>> > > >
>> > > > carmine colangelo wrote:
>> > > > >
>> > > > > i am running a weber carb with the vacume advance taken off of the
>> base
>> > > of
>> > > > > ther carb.so i would assume this is manifold vacume. as far as i
>> know
>> > > the
>> > > > > vacume advance is stock. i am running a one line fuel filter with
>a
>> > > pressure
>> > > > > regulator. i dont know if stock timing would apply to my jeep
>> because it
>> > > is
>> > > > > a 86 with a r.v. cam and all the computer and emmision stuff taken
>> off.
>> > > > > thanks carmine
>> > > > >
>> > > > > "Mike Romain" <romainm@sympatico.ca> wrote in message
>> > > > > news:40C9C480.E0C7EDEC@sympatico.ca...
>> > > > > > What kind of carb are you running?
>> > > > > >
>> > > > > > Do you have the correct gas filter in it and is it in right side
>> up?
>> > > > > >
>> > > > > > Which vacuum advance are you running?
>> > > > > >
>> > > > > > Mike
>> > > > > > 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
>> > > > > > 88 Cherokee 235 BFG AT's
>> > > > > >
>> > > > > > carmine colangelo wrote:
>> > > > > > >
>> > > > > > > with the gas prices going so high i am tying to get my 1986
>jeep
>> cj7
>> > > 258
>> > > > > 6
>> > > > > > > cyl with a r.v. cam (for low torque) to run on pump gas. i
>have
>> a
>> > > msd ss
>> > > > > > > coil, lighter centrifigal advance spring in it. i was running
>12
>> > > degrees
>> > > > > > > advance on super unleaded and had to go all the way down to 6
>> > > degrees to
>> > > > > get
>> > > > > > > it to stop pinging up hills. but now it is allot harder to
>start
>> > > when it
>> > > > > is
>> > > > > > > cold. anyone have any ideas what i could do to get it to start
>> > > better?
>> > > > > is 6
>> > > > > > > degrees to low on the timing? should i put the stock
>centrifigal
>> > > spring
>> > > > > back
>> > > > > > > in it to not get so much advance at higher rpm's? i just want
>to
>> get
>> > > the
>> > > > > > > jeep to run on pump gas and start nice. thanks carmine
>>
>>
>
06-12-2004, 12:03 AM
#53
Guest
Posts: n/a
Re: ignition questions?
I'm pretty sure the vacuum advance on the 258 IS adjustable. I know for sure
the V8 engines were. It's takes a 1/8" allen wrench inserted into the vacuum
nipple to adjust it.
In message <JNsyc.12624$Fd.11018@twister.rdc-kc.rr.com>, "c" wrote:
>Carmine,
>After thinking about this a bit, your RV cam could be building more cylinder
>pressure than the stock cam did. These cams generally have a short duration,
>high lift lobe profile. The extra cylinder pressure could be causing the
>pinging. With that said, you may want to try another approach by using an
>adjustable vacuum advance kit. Crane and others make them, but I don't know
>if they make them for your engine. They do make them for the GM HEI though,
>and this may be a good time to do this swap if you want. The adjustable vac.
>advance will allow you to adjust how much advance, and at what vacuum
>reading it starts. The kits also come with centrifugal weight springs
>similar to what you have installed already. Here is a link to the product:
>
>http://www.cranecams.com/index.php?s...s&lvl=3&prt=29
>
>Chris
>
>
>"carmine colangelo" <carmine7@optonline.net> wrote in message
>news:Njryc.11796$0g3.3315692@news4.srv.hcvlny.cv. net...
>> yeah it sure did dump out some white smoke. even more smoke than the 2
>> stokes i'm used to working on. but i still cant get the timing above 7
>> degrees with out pinging. are there different vacume advances i can bolt
>to
>> the distributer? it seems to me i need more advance on cold starts and
>less
>> timing advance around 2500 rpm's when i am coming up a hill. i'm just not
>> sure how to go about doing it.
>> thanks carmine
>>
>> "Mike Romain" <romainm@sympatico.ca> wrote in message
>> news:40CA3B4C.EAB6C04B@sympatico.ca...
>> > I have seen lots of folks miss that wiring bit, so it is worth checking.
>> >
>> > Pour the ATF slow while keeping it running and be warned it 'will' give
>> > off one massive white smoke cloud.
>> >
>> > Mike
>> >
>> > carmine colangelo wrote:
>> > >
>> > > i traced the purple wire from the ignition module and it goes to the
>> > > distributer. i dont think the computer is even on the jeep any more.
>it
>> was
>> > > removed before i bought it. i will try putting a pint of ATF in it to
>> remove
>> > > some of the carbon
>> > > thanks carmine
>> > >
>> > > "Mike Romain" <romainm@sympatico.ca> wrote in message
>> > > news:40CA1FCD.DC9DABA5@sympatico.ca...
>> > > > Do you physically have the ignition module connected directly to the
>> > > > distributor or does it still go through the computer?
>> > > >
>> > > > The reason I ask is if the computer is still a physical presence,
>then
>> > > > it has gone into limp home mode which messes with the timing advance
>> big
>> > > > time.
>> > > >
>> > > > You can tell by looking at the ignition module, waaayyy down under
>the
>> > > > washer bottle. Check the purple wire coming out of the module. If
>it
>> > > > isn't jumpered to a new wire, you have issues right there. Stock,
>the
>> > > > purple wire goes nowhere, it stops at the first plug.
>> > > >
>> > > > If you remove any emissions stuff, the ignition has to be rewired to
>> > > > work right. It is easy, I always add two new wires rather than mess
>> > > > inside the harness. http://home.sprynet.com/~dale02/ignmods.htm
>> > > >
>> > > > One other thing is carbon build up. That RV cam and running low RPM
>> are
>> > > > really bad for carbon build up. This will cause pinging.
>> > > >
>> > > > I run a pint of ATF slowly down the throat of the carb while keeping
>> it
>> > > > running with my hand on the throttle. It cleans the carbon out
>great.
>> > > > Some folks use a pint of water to do this and say it works well too.
>> > > >
>> > > > Mike
>> > > >
>> > > > carmine colangelo wrote:
>> > > > >
>> > > > > i am running a weber carb with the vacume advance taken off of the
>> base
>> > > of
>> > > > > ther carb.so i would assume this is manifold vacume. as far as i
>> know
>> > > the
>> > > > > vacume advance is stock. i am running a one line fuel filter with
>a
>> > > pressure
>> > > > > regulator. i dont know if stock timing would apply to my jeep
>> because it
>> > > is
>> > > > > a 86 with a r.v. cam and all the computer and emmision stuff taken
>> off.
>> > > > > thanks carmine
>> > > > >
>> > > > > "Mike Romain" <romainm@sympatico.ca> wrote in message
>> > > > > news:40C9C480.E0C7EDEC@sympatico.ca...
>> > > > > > What kind of carb are you running?
>> > > > > >
>> > > > > > Do you have the correct gas filter in it and is it in right side
>> up?
>> > > > > >
>> > > > > > Which vacuum advance are you running?
>> > > > > >
>> > > > > > Mike
>> > > > > > 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
>> > > > > > 88 Cherokee 235 BFG AT's
>> > > > > >
>> > > > > > carmine colangelo wrote:
>> > > > > > >
>> > > > > > > with the gas prices going so high i am tying to get my 1986
>jeep
>> cj7
>> > > 258
>> > > > > 6
>> > > > > > > cyl with a r.v. cam (for low torque) to run on pump gas. i
>have
>> a
>> > > msd ss
>> > > > > > > coil, lighter centrifigal advance spring in it. i was running
>12
>> > > degrees
>> > > > > > > advance on super unleaded and had to go all the way down to 6
>> > > degrees to
>> > > > > get
>> > > > > > > it to stop pinging up hills. but now it is allot harder to
>start
>> > > when it
>> > > > > is
>> > > > > > > cold. anyone have any ideas what i could do to get it to start
>> > > better?
>> > > > > is 6
>> > > > > > > degrees to low on the timing? should i put the stock
>centrifigal
>> > > spring
>> > > > > back
>> > > > > > > in it to not get so much advance at higher rpm's? i just want
>to
>> get
>> > > the
>> > > > > > > jeep to run on pump gas and start nice. thanks carmine
>>
>>
>
the V8 engines were. It's takes a 1/8" allen wrench inserted into the vacuum
nipple to adjust it.
In message <JNsyc.12624$Fd.11018@twister.rdc-kc.rr.com>, "c" wrote:
>Carmine,
>After thinking about this a bit, your RV cam could be building more cylinder
>pressure than the stock cam did. These cams generally have a short duration,
>high lift lobe profile. The extra cylinder pressure could be causing the
>pinging. With that said, you may want to try another approach by using an
>adjustable vacuum advance kit. Crane and others make them, but I don't know
>if they make them for your engine. They do make them for the GM HEI though,
>and this may be a good time to do this swap if you want. The adjustable vac.
>advance will allow you to adjust how much advance, and at what vacuum
>reading it starts. The kits also come with centrifugal weight springs
>similar to what you have installed already. Here is a link to the product:
>
>http://www.cranecams.com/index.php?s...s&lvl=3&prt=29
>
>Chris
>
>
>"carmine colangelo" <carmine7@optonline.net> wrote in message
>news:Njryc.11796$0g3.3315692@news4.srv.hcvlny.cv. net...
>> yeah it sure did dump out some white smoke. even more smoke than the 2
>> stokes i'm used to working on. but i still cant get the timing above 7
>> degrees with out pinging. are there different vacume advances i can bolt
>to
>> the distributer? it seems to me i need more advance on cold starts and
>less
>> timing advance around 2500 rpm's when i am coming up a hill. i'm just not
>> sure how to go about doing it.
>> thanks carmine
>>
>> "Mike Romain" <romainm@sympatico.ca> wrote in message
>> news:40CA3B4C.EAB6C04B@sympatico.ca...
>> > I have seen lots of folks miss that wiring bit, so it is worth checking.
>> >
>> > Pour the ATF slow while keeping it running and be warned it 'will' give
>> > off one massive white smoke cloud.
>> >
>> > Mike
>> >
>> > carmine colangelo wrote:
>> > >
>> > > i traced the purple wire from the ignition module and it goes to the
>> > > distributer. i dont think the computer is even on the jeep any more.
>it
>> was
>> > > removed before i bought it. i will try putting a pint of ATF in it to
>> remove
>> > > some of the carbon
>> > > thanks carmine
>> > >
>> > > "Mike Romain" <romainm@sympatico.ca> wrote in message
>> > > news:40CA1FCD.DC9DABA5@sympatico.ca...
>> > > > Do you physically have the ignition module connected directly to the
>> > > > distributor or does it still go through the computer?
>> > > >
>> > > > The reason I ask is if the computer is still a physical presence,
>then
>> > > > it has gone into limp home mode which messes with the timing advance
>> big
>> > > > time.
>> > > >
>> > > > You can tell by looking at the ignition module, waaayyy down under
>the
>> > > > washer bottle. Check the purple wire coming out of the module. If
>it
>> > > > isn't jumpered to a new wire, you have issues right there. Stock,
>the
>> > > > purple wire goes nowhere, it stops at the first plug.
>> > > >
>> > > > If you remove any emissions stuff, the ignition has to be rewired to
>> > > > work right. It is easy, I always add two new wires rather than mess
>> > > > inside the harness. http://home.sprynet.com/~dale02/ignmods.htm
>> > > >
>> > > > One other thing is carbon build up. That RV cam and running low RPM
>> are
>> > > > really bad for carbon build up. This will cause pinging.
>> > > >
>> > > > I run a pint of ATF slowly down the throat of the carb while keeping
>> it
>> > > > running with my hand on the throttle. It cleans the carbon out
>great.
>> > > > Some folks use a pint of water to do this and say it works well too.
>> > > >
>> > > > Mike
>> > > >
>> > > > carmine colangelo wrote:
>> > > > >
>> > > > > i am running a weber carb with the vacume advance taken off of the
>> base
>> > > of
>> > > > > ther carb.so i would assume this is manifold vacume. as far as i
>> know
>> > > the
>> > > > > vacume advance is stock. i am running a one line fuel filter with
>a
>> > > pressure
>> > > > > regulator. i dont know if stock timing would apply to my jeep
>> because it
>> > > is
>> > > > > a 86 with a r.v. cam and all the computer and emmision stuff taken
>> off.
>> > > > > thanks carmine
>> > > > >
>> > > > > "Mike Romain" <romainm@sympatico.ca> wrote in message
>> > > > > news:40C9C480.E0C7EDEC@sympatico.ca...
>> > > > > > What kind of carb are you running?
>> > > > > >
>> > > > > > Do you have the correct gas filter in it and is it in right side
>> up?
>> > > > > >
>> > > > > > Which vacuum advance are you running?
>> > > > > >
>> > > > > > Mike
>> > > > > > 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
>> > > > > > 88 Cherokee 235 BFG AT's
>> > > > > >
>> > > > > > carmine colangelo wrote:
>> > > > > > >
>> > > > > > > with the gas prices going so high i am tying to get my 1986
>jeep
>> cj7
>> > > 258
>> > > > > 6
>> > > > > > > cyl with a r.v. cam (for low torque) to run on pump gas. i
>have
>> a
>> > > msd ss
>> > > > > > > coil, lighter centrifigal advance spring in it. i was running
>12
>> > > degrees
>> > > > > > > advance on super unleaded and had to go all the way down to 6
>> > > degrees to
>> > > > > get
>> > > > > > > it to stop pinging up hills. but now it is allot harder to
>start
>> > > when it
>> > > > > is
>> > > > > > > cold. anyone have any ideas what i could do to get it to start
>> > > better?
>> > > > > is 6
>> > > > > > > degrees to low on the timing? should i put the stock
>centrifigal
>> > > spring
>> > > > > back
>> > > > > > > in it to not get so much advance at higher rpm's? i just want
>to
>> get
>> > > the
>> > > > > > > jeep to run on pump gas and start nice. thanks carmine
>>
>>
>
06-12-2004, 10:22 AM
#54
Guest
Posts: n/a
Re: ignition questions?
thanks for all the info guys. thanks carmine
"c" <c@me.org> wrote in message
news:xfvyc.12645$Fd.6959@twister.rdc-kc.rr.com...
> Some engines have an adjustment. The aftermarket ones have this
adjustment,
> as well as a stepped limiter plate that is used to limit the amount of
> advance. The adjustment inside the nipple is for adjusting the amount of
> vacuum it takes to pull the advance lever. This might be all he needs.
>
> Chris
>
> "bllsht" <nospam@invaliddot.net> wrote in message
> news:qrvkc01ff125fstb7qung30ppr2kl43vnd@4ax.com...
> > I'm pretty sure the vacuum advance on the 258 IS adjustable. I know for
> sure
> > the V8 engines were. It's takes a 1/8" allen wrench inserted into the
> vacuum
> > nipple to adjust it.
> >
> >
> >
> > In message <JNsyc.12624$Fd.11018@twister.rdc-kc.rr.com>, "c" wrote:
> >
> > >Carmine,
> > >After thinking about this a bit, your RV cam could be building more
> cylinder
> > >pressure than the stock cam did. These cams generally have a short
> duration,
> > >high lift lobe profile. The extra cylinder pressure could be causing
the
> > >pinging. With that said, you may want to try another approach by using
an
> > >adjustable vacuum advance kit. Crane and others make them, but I don't
> know
> > >if they make them for your engine. They do make them for the GM HEI
> though,
> > >and this may be a good time to do this swap if you want. The adjustable
> vac.
> > >advance will allow you to adjust how much advance, and at what vacuum
> > >reading it starts. The kits also come with centrifugal weight springs
> > >similar to what you have installed already. Here is a link to the
> product:
> > >
> > >http://www.cranecams.com/index.php?s...s&lvl=3&prt=29
> > >
> > >Chris
> > >
> > >
> > >"carmine colangelo" <carmine7@optonline.net> wrote in message
> > >news:Njryc.11796$0g3.3315692@news4.srv.hcvlny.cv. net...
> > >> yeah it sure did dump out some white smoke. even more smoke than the
2
> > >> stokes i'm used to working on. but i still cant get the timing above
7
> > >> degrees with out pinging. are there different vacume advances i can
> bolt
> > >to
> > >> the distributer? it seems to me i need more advance on cold starts
and
> > >less
> > >> timing advance around 2500 rpm's when i am coming up a hill. i'm just
> not
> > >> sure how to go about doing it.
> > >> thanks carmine
> > >>
> > >> "Mike Romain" <romainm@sympatico.ca> wrote in message
> > >> news:40CA3B4C.EAB6C04B@sympatico.ca...
> > >> > I have seen lots of folks miss that wiring bit, so it is worth
> checking.
> > >> >
> > >> > Pour the ATF slow while keeping it running and be warned it 'will'
> give
> > >> > off one massive white smoke cloud.
> > >> >
> > >> > Mike
> > >> >
> > >> > carmine colangelo wrote:
> > >> > >
> > >> > > i traced the purple wire from the ignition module and it goes to
> the
> > >> > > distributer. i dont think the computer is even on the jeep any
> more.
> > >it
> > >> was
> > >> > > removed before i bought it. i will try putting a pint of ATF in
it
> to
> > >> remove
> > >> > > some of the carbon
> > >> > > thanks carmine
> > >> > >
> > >> > > "Mike Romain" <romainm@sympatico.ca> wrote in message
> > >> > > news:40CA1FCD.DC9DABA5@sympatico.ca...
> > >> > > > Do you physically have the ignition module connected directly
to
> the
> > >> > > > distributor or does it still go through the computer?
> > >> > > >
> > >> > > > The reason I ask is if the computer is still a physical
presence,
> > >then
> > >> > > > it has gone into limp home mode which messes with the timing
> advance
> > >> big
> > >> > > > time.
> > >> > > >
> > >> > > > You can tell by looking at the ignition module, waaayyy down
> under
> > >the
> > >> > > > washer bottle. Check the purple wire coming out of the module.
> If
> > >it
> > >> > > > isn't jumpered to a new wire, you have issues right there.
> Stock,
> > >the
> > >> > > > purple wire goes nowhere, it stops at the first plug.
> > >> > > >
> > >> > > > If you remove any emissions stuff, the ignition has to be
rewired
> to
> > >> > > > work right. It is easy, I always add two new wires rather than
> mess
> > >> > > > inside the harness.
http://home.sprynet.com/~dale02/ignmods.htm
> > >> > > >
> > >> > > > One other thing is carbon build up. That RV cam and running
low
> RPM
> > >> are
> > >> > > > really bad for carbon build up. This will cause pinging.
> > >> > > >
> > >> > > > I run a pint of ATF slowly down the throat of the carb while
> keeping
> > >> it
> > >> > > > running with my hand on the throttle. It cleans the carbon out
> > >great.
> > >> > > > Some folks use a pint of water to do this and say it works well
> too.
> > >> > > >
> > >> > > > Mike
> > >> > > >
> > >> > > > carmine colangelo wrote:
> > >> > > > >
> > >> > > > > i am running a weber carb with the vacume advance taken off
of
> the
> > >> base
> > >> > > of
> > >> > > > > ther carb.so i would assume this is manifold vacume. as far
as
> i
> > >> know
> > >> > > the
> > >> > > > > vacume advance is stock. i am running a one line fuel filter
> with
> > >a
> > >> > > pressure
> > >> > > > > regulator. i dont know if stock timing would apply to my jeep
> > >> because it
> > >> > > is
> > >> > > > > a 86 with a r.v. cam and all the computer and emmision stuff
> taken
> > >> off.
> > >> > > > > thanks carmine
> > >> > > > >
> > >> > > > > "Mike Romain" <romainm@sympatico.ca> wrote in message
> > >> > > > > news:40C9C480.E0C7EDEC@sympatico.ca...
> > >> > > > > > What kind of carb are you running?
> > >> > > > > >
> > >> > > > > > Do you have the correct gas filter in it and is it in right
> side
> > >> up?
> > >> > > > > >
> > >> > > > > > Which vacuum advance are you running?
> > >> > > > > >
> > >> > > > > > Mike
> > >> > > > > > 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in
'00
> > >> > > > > > 88 Cherokee 235 BFG AT's
> > >> > > > > >
> > >> > > > > > carmine colangelo wrote:
> > >> > > > > > >
> > >> > > > > > > with the gas prices going so high i am tying to get my
1986
> > >jeep
> > >> cj7
> > >> > > 258
> > >> > > > > 6
> > >> > > > > > > cyl with a r.v. cam (for low torque) to run on pump gas.
i
> > >have
> > >> a
> > >> > > msd ss
> > >> > > > > > > coil, lighter centrifigal advance spring in it. i was
> running
> > >12
> > >> > > degrees
> > >> > > > > > > advance on super unleaded and had to go all the way down
to
> 6
> > >> > > degrees to
> > >> > > > > get
> > >> > > > > > > it to stop pinging up hills. but now it is allot harder
to
> > >start
> > >> > > when it
> > >> > > > > is
> > >> > > > > > > cold. anyone have any ideas what i could do to get it to
> start
> > >> > > better?
> > >> > > > > is 6
> > >> > > > > > > degrees to low on the timing? should i put the stock
> > >centrifigal
> > >> > > spring
> > >> > > > > back
> > >> > > > > > > in it to not get so much advance at higher rpm's? i just
> want
> > >to
> > >> get
> > >> > > the
> > >> > > > > > > jeep to run on pump gas and start nice. thanks carmine
> > >>
> > >>
> > >
> >
>
>
"c" <c@me.org> wrote in message
news:xfvyc.12645$Fd.6959@twister.rdc-kc.rr.com...
> Some engines have an adjustment. The aftermarket ones have this
adjustment,
> as well as a stepped limiter plate that is used to limit the amount of
> advance. The adjustment inside the nipple is for adjusting the amount of
> vacuum it takes to pull the advance lever. This might be all he needs.
>
> Chris
>
> "bllsht" <nospam@invaliddot.net> wrote in message
> news:qrvkc01ff125fstb7qung30ppr2kl43vnd@4ax.com...
> > I'm pretty sure the vacuum advance on the 258 IS adjustable. I know for
> sure
> > the V8 engines were. It's takes a 1/8" allen wrench inserted into the
> vacuum
> > nipple to adjust it.
> >
> >
> >
> > In message <JNsyc.12624$Fd.11018@twister.rdc-kc.rr.com>, "c" wrote:
> >
> > >Carmine,
> > >After thinking about this a bit, your RV cam could be building more
> cylinder
> > >pressure than the stock cam did. These cams generally have a short
> duration,
> > >high lift lobe profile. The extra cylinder pressure could be causing
the
> > >pinging. With that said, you may want to try another approach by using
an
> > >adjustable vacuum advance kit. Crane and others make them, but I don't
> know
> > >if they make them for your engine. They do make them for the GM HEI
> though,
> > >and this may be a good time to do this swap if you want. The adjustable
> vac.
> > >advance will allow you to adjust how much advance, and at what vacuum
> > >reading it starts. The kits also come with centrifugal weight springs
> > >similar to what you have installed already. Here is a link to the
> product:
> > >
> > >http://www.cranecams.com/index.php?s...s&lvl=3&prt=29
> > >
> > >Chris
> > >
> > >
> > >"carmine colangelo" <carmine7@optonline.net> wrote in message
> > >news:Njryc.11796$0g3.3315692@news4.srv.hcvlny.cv. net...
> > >> yeah it sure did dump out some white smoke. even more smoke than the
2
> > >> stokes i'm used to working on. but i still cant get the timing above
7
> > >> degrees with out pinging. are there different vacume advances i can
> bolt
> > >to
> > >> the distributer? it seems to me i need more advance on cold starts
and
> > >less
> > >> timing advance around 2500 rpm's when i am coming up a hill. i'm just
> not
> > >> sure how to go about doing it.
> > >> thanks carmine
> > >>
> > >> "Mike Romain" <romainm@sympatico.ca> wrote in message
> > >> news:40CA3B4C.EAB6C04B@sympatico.ca...
> > >> > I have seen lots of folks miss that wiring bit, so it is worth
> checking.
> > >> >
> > >> > Pour the ATF slow while keeping it running and be warned it 'will'
> give
> > >> > off one massive white smoke cloud.
> > >> >
> > >> > Mike
> > >> >
> > >> > carmine colangelo wrote:
> > >> > >
> > >> > > i traced the purple wire from the ignition module and it goes to
> the
> > >> > > distributer. i dont think the computer is even on the jeep any
> more.
> > >it
> > >> was
> > >> > > removed before i bought it. i will try putting a pint of ATF in
it
> to
> > >> remove
> > >> > > some of the carbon
> > >> > > thanks carmine
> > >> > >
> > >> > > "Mike Romain" <romainm@sympatico.ca> wrote in message
> > >> > > news:40CA1FCD.DC9DABA5@sympatico.ca...
> > >> > > > Do you physically have the ignition module connected directly
to
> the
> > >> > > > distributor or does it still go through the computer?
> > >> > > >
> > >> > > > The reason I ask is if the computer is still a physical
presence,
> > >then
> > >> > > > it has gone into limp home mode which messes with the timing
> advance
> > >> big
> > >> > > > time.
> > >> > > >
> > >> > > > You can tell by looking at the ignition module, waaayyy down
> under
> > >the
> > >> > > > washer bottle. Check the purple wire coming out of the module.
> If
> > >it
> > >> > > > isn't jumpered to a new wire, you have issues right there.
> Stock,
> > >the
> > >> > > > purple wire goes nowhere, it stops at the first plug.
> > >> > > >
> > >> > > > If you remove any emissions stuff, the ignition has to be
rewired
> to
> > >> > > > work right. It is easy, I always add two new wires rather than
> mess
> > >> > > > inside the harness.
http://home.sprynet.com/~dale02/ignmods.htm
> > >> > > >
> > >> > > > One other thing is carbon build up. That RV cam and running
low
> RPM
> > >> are
> > >> > > > really bad for carbon build up. This will cause pinging.
> > >> > > >
> > >> > > > I run a pint of ATF slowly down the throat of the carb while
> keeping
> > >> it
> > >> > > > running with my hand on the throttle. It cleans the carbon out
> > >great.
> > >> > > > Some folks use a pint of water to do this and say it works well
> too.
> > >> > > >
> > >> > > > Mike
> > >> > > >
> > >> > > > carmine colangelo wrote:
> > >> > > > >
> > >> > > > > i am running a weber carb with the vacume advance taken off
of
> the
> > >> base
> > >> > > of
> > >> > > > > ther carb.so i would assume this is manifold vacume. as far
as
> i
> > >> know
> > >> > > the
> > >> > > > > vacume advance is stock. i am running a one line fuel filter
> with
> > >a
> > >> > > pressure
> > >> > > > > regulator. i dont know if stock timing would apply to my jeep
> > >> because it
> > >> > > is
> > >> > > > > a 86 with a r.v. cam and all the computer and emmision stuff
> taken
> > >> off.
> > >> > > > > thanks carmine
> > >> > > > >
> > >> > > > > "Mike Romain" <romainm@sympatico.ca> wrote in message
> > >> > > > > news:40C9C480.E0C7EDEC@sympatico.ca...
> > >> > > > > > What kind of carb are you running?
> > >> > > > > >
> > >> > > > > > Do you have the correct gas filter in it and is it in right
> side
> > >> up?
> > >> > > > > >
> > >> > > > > > Which vacuum advance are you running?
> > >> > > > > >
> > >> > > > > > Mike
> > >> > > > > > 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in
'00
> > >> > > > > > 88 Cherokee 235 BFG AT's
> > >> > > > > >
> > >> > > > > > carmine colangelo wrote:
> > >> > > > > > >
> > >> > > > > > > with the gas prices going so high i am tying to get my
1986
> > >jeep
> > >> cj7
> > >> > > 258
> > >> > > > > 6
> > >> > > > > > > cyl with a r.v. cam (for low torque) to run on pump gas.
i
> > >have
> > >> a
> > >> > > msd ss
> > >> > > > > > > coil, lighter centrifigal advance spring in it. i was
> running
> > >12
> > >> > > degrees
> > >> > > > > > > advance on super unleaded and had to go all the way down
to
> 6
> > >> > > degrees to
> > >> > > > > get
> > >> > > > > > > it to stop pinging up hills. but now it is allot harder
to
> > >start
> > >> > > when it
> > >> > > > > is
> > >> > > > > > > cold. anyone have any ideas what i could do to get it to
> start
> > >> > > better?
> > >> > > > > is 6
> > >> > > > > > > degrees to low on the timing? should i put the stock
> > >centrifigal
> > >> > > spring
> > >> > > > > back
> > >> > > > > > > in it to not get so much advance at higher rpm's? i just
> want
> > >to
> > >> get
> > >> > > the
> > >> > > > > > > jeep to run on pump gas and start nice. thanks carmine
> > >>
> > >>
> > >
> >
>
>
06-12-2004, 10:22 AM
#55
Guest
Posts: n/a
Re: ignition questions?
thanks for all the info guys. thanks carmine
"c" <c@me.org> wrote in message
news:xfvyc.12645$Fd.6959@twister.rdc-kc.rr.com...
> Some engines have an adjustment. The aftermarket ones have this
adjustment,
> as well as a stepped limiter plate that is used to limit the amount of
> advance. The adjustment inside the nipple is for adjusting the amount of
> vacuum it takes to pull the advance lever. This might be all he needs.
>
> Chris
>
> "bllsht" <nospam@invaliddot.net> wrote in message
> news:qrvkc01ff125fstb7qung30ppr2kl43vnd@4ax.com...
> > I'm pretty sure the vacuum advance on the 258 IS adjustable. I know for
> sure
> > the V8 engines were. It's takes a 1/8" allen wrench inserted into the
> vacuum
> > nipple to adjust it.
> >
> >
> >
> > In message <JNsyc.12624$Fd.11018@twister.rdc-kc.rr.com>, "c" wrote:
> >
> > >Carmine,
> > >After thinking about this a bit, your RV cam could be building more
> cylinder
> > >pressure than the stock cam did. These cams generally have a short
> duration,
> > >high lift lobe profile. The extra cylinder pressure could be causing
the
> > >pinging. With that said, you may want to try another approach by using
an
> > >adjustable vacuum advance kit. Crane and others make them, but I don't
> know
> > >if they make them for your engine. They do make them for the GM HEI
> though,
> > >and this may be a good time to do this swap if you want. The adjustable
> vac.
> > >advance will allow you to adjust how much advance, and at what vacuum
> > >reading it starts. The kits also come with centrifugal weight springs
> > >similar to what you have installed already. Here is a link to the
> product:
> > >
> > >http://www.cranecams.com/index.php?s...s&lvl=3&prt=29
> > >
> > >Chris
> > >
> > >
> > >"carmine colangelo" <carmine7@optonline.net> wrote in message
> > >news:Njryc.11796$0g3.3315692@news4.srv.hcvlny.cv. net...
> > >> yeah it sure did dump out some white smoke. even more smoke than the
2
> > >> stokes i'm used to working on. but i still cant get the timing above
7
> > >> degrees with out pinging. are there different vacume advances i can
> bolt
> > >to
> > >> the distributer? it seems to me i need more advance on cold starts
and
> > >less
> > >> timing advance around 2500 rpm's when i am coming up a hill. i'm just
> not
> > >> sure how to go about doing it.
> > >> thanks carmine
> > >>
> > >> "Mike Romain" <romainm@sympatico.ca> wrote in message
> > >> news:40CA3B4C.EAB6C04B@sympatico.ca...
> > >> > I have seen lots of folks miss that wiring bit, so it is worth
> checking.
> > >> >
> > >> > Pour the ATF slow while keeping it running and be warned it 'will'
> give
> > >> > off one massive white smoke cloud.
> > >> >
> > >> > Mike
> > >> >
> > >> > carmine colangelo wrote:
> > >> > >
> > >> > > i traced the purple wire from the ignition module and it goes to
> the
> > >> > > distributer. i dont think the computer is even on the jeep any
> more.
> > >it
> > >> was
> > >> > > removed before i bought it. i will try putting a pint of ATF in
it
> to
> > >> remove
> > >> > > some of the carbon
> > >> > > thanks carmine
> > >> > >
> > >> > > "Mike Romain" <romainm@sympatico.ca> wrote in message
> > >> > > news:40CA1FCD.DC9DABA5@sympatico.ca...
> > >> > > > Do you physically have the ignition module connected directly
to
> the
> > >> > > > distributor or does it still go through the computer?
> > >> > > >
> > >> > > > The reason I ask is if the computer is still a physical
presence,
> > >then
> > >> > > > it has gone into limp home mode which messes with the timing
> advance
> > >> big
> > >> > > > time.
> > >> > > >
> > >> > > > You can tell by looking at the ignition module, waaayyy down
> under
> > >the
> > >> > > > washer bottle. Check the purple wire coming out of the module.
> If
> > >it
> > >> > > > isn't jumpered to a new wire, you have issues right there.
> Stock,
> > >the
> > >> > > > purple wire goes nowhere, it stops at the first plug.
> > >> > > >
> > >> > > > If you remove any emissions stuff, the ignition has to be
rewired
> to
> > >> > > > work right. It is easy, I always add two new wires rather than
> mess
> > >> > > > inside the harness.
http://home.sprynet.com/~dale02/ignmods.htm
> > >> > > >
> > >> > > > One other thing is carbon build up. That RV cam and running
low
> RPM
> > >> are
> > >> > > > really bad for carbon build up. This will cause pinging.
> > >> > > >
> > >> > > > I run a pint of ATF slowly down the throat of the carb while
> keeping
> > >> it
> > >> > > > running with my hand on the throttle. It cleans the carbon out
> > >great.
> > >> > > > Some folks use a pint of water to do this and say it works well
> too.
> > >> > > >
> > >> > > > Mike
> > >> > > >
> > >> > > > carmine colangelo wrote:
> > >> > > > >
> > >> > > > > i am running a weber carb with the vacume advance taken off
of
> the
> > >> base
> > >> > > of
> > >> > > > > ther carb.so i would assume this is manifold vacume. as far
as
> i
> > >> know
> > >> > > the
> > >> > > > > vacume advance is stock. i am running a one line fuel filter
> with
> > >a
> > >> > > pressure
> > >> > > > > regulator. i dont know if stock timing would apply to my jeep
> > >> because it
> > >> > > is
> > >> > > > > a 86 with a r.v. cam and all the computer and emmision stuff
> taken
> > >> off.
> > >> > > > > thanks carmine
> > >> > > > >
> > >> > > > > "Mike Romain" <romainm@sympatico.ca> wrote in message
> > >> > > > > news:40C9C480.E0C7EDEC@sympatico.ca...
> > >> > > > > > What kind of carb are you running?
> > >> > > > > >
> > >> > > > > > Do you have the correct gas filter in it and is it in right
> side
> > >> up?
> > >> > > > > >
> > >> > > > > > Which vacuum advance are you running?
> > >> > > > > >
> > >> > > > > > Mike
> > >> > > > > > 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in
'00
> > >> > > > > > 88 Cherokee 235 BFG AT's
> > >> > > > > >
> > >> > > > > > carmine colangelo wrote:
> > >> > > > > > >
> > >> > > > > > > with the gas prices going so high i am tying to get my
1986
> > >jeep
> > >> cj7
> > >> > > 258
> > >> > > > > 6
> > >> > > > > > > cyl with a r.v. cam (for low torque) to run on pump gas.
i
> > >have
> > >> a
> > >> > > msd ss
> > >> > > > > > > coil, lighter centrifigal advance spring in it. i was
> running
> > >12
> > >> > > degrees
> > >> > > > > > > advance on super unleaded and had to go all the way down
to
> 6
> > >> > > degrees to
> > >> > > > > get
> > >> > > > > > > it to stop pinging up hills. but now it is allot harder
to
> > >start
> > >> > > when it
> > >> > > > > is
> > >> > > > > > > cold. anyone have any ideas what i could do to get it to
> start
> > >> > > better?
> > >> > > > > is 6
> > >> > > > > > > degrees to low on the timing? should i put the stock
> > >centrifigal
> > >> > > spring
> > >> > > > > back
> > >> > > > > > > in it to not get so much advance at higher rpm's? i just
> want
> > >to
> > >> get
> > >> > > the
> > >> > > > > > > jeep to run on pump gas and start nice. thanks carmine
> > >>
> > >>
> > >
> >
>
>
"c" <c@me.org> wrote in message
news:xfvyc.12645$Fd.6959@twister.rdc-kc.rr.com...
> Some engines have an adjustment. The aftermarket ones have this
adjustment,
> as well as a stepped limiter plate that is used to limit the amount of
> advance. The adjustment inside the nipple is for adjusting the amount of
> vacuum it takes to pull the advance lever. This might be all he needs.
>
> Chris
>
> "bllsht" <nospam@invaliddot.net> wrote in message
> news:qrvkc01ff125fstb7qung30ppr2kl43vnd@4ax.com...
> > I'm pretty sure the vacuum advance on the 258 IS adjustable. I know for
> sure
> > the V8 engines were. It's takes a 1/8" allen wrench inserted into the
> vacuum
> > nipple to adjust it.
> >
> >
> >
> > In message <JNsyc.12624$Fd.11018@twister.rdc-kc.rr.com>, "c" wrote:
> >
> > >Carmine,
> > >After thinking about this a bit, your RV cam could be building more
> cylinder
> > >pressure than the stock cam did. These cams generally have a short
> duration,
> > >high lift lobe profile. The extra cylinder pressure could be causing
the
> > >pinging. With that said, you may want to try another approach by using
an
> > >adjustable vacuum advance kit. Crane and others make them, but I don't
> know
> > >if they make them for your engine. They do make them for the GM HEI
> though,
> > >and this may be a good time to do this swap if you want. The adjustable
> vac.
> > >advance will allow you to adjust how much advance, and at what vacuum
> > >reading it starts. The kits also come with centrifugal weight springs
> > >similar to what you have installed already. Here is a link to the
> product:
> > >
> > >http://www.cranecams.com/index.php?s...s&lvl=3&prt=29
> > >
> > >Chris
> > >
> > >
> > >"carmine colangelo" <carmine7@optonline.net> wrote in message
> > >news:Njryc.11796$0g3.3315692@news4.srv.hcvlny.cv. net...
> > >> yeah it sure did dump out some white smoke. even more smoke than the
2
> > >> stokes i'm used to working on. but i still cant get the timing above
7
> > >> degrees with out pinging. are there different vacume advances i can
> bolt
> > >to
> > >> the distributer? it seems to me i need more advance on cold starts
and
> > >less
> > >> timing advance around 2500 rpm's when i am coming up a hill. i'm just
> not
> > >> sure how to go about doing it.
> > >> thanks carmine
> > >>
> > >> "Mike Romain" <romainm@sympatico.ca> wrote in message
> > >> news:40CA3B4C.EAB6C04B@sympatico.ca...
> > >> > I have seen lots of folks miss that wiring bit, so it is worth
> checking.
> > >> >
> > >> > Pour the ATF slow while keeping it running and be warned it 'will'
> give
> > >> > off one massive white smoke cloud.
> > >> >
> > >> > Mike
> > >> >
> > >> > carmine colangelo wrote:
> > >> > >
> > >> > > i traced the purple wire from the ignition module and it goes to
> the
> > >> > > distributer. i dont think the computer is even on the jeep any
> more.
> > >it
> > >> was
> > >> > > removed before i bought it. i will try putting a pint of ATF in
it
> to
> > >> remove
> > >> > > some of the carbon
> > >> > > thanks carmine
> > >> > >
> > >> > > "Mike Romain" <romainm@sympatico.ca> wrote in message
> > >> > > news:40CA1FCD.DC9DABA5@sympatico.ca...
> > >> > > > Do you physically have the ignition module connected directly
to
> the
> > >> > > > distributor or does it still go through the computer?
> > >> > > >
> > >> > > > The reason I ask is if the computer is still a physical
presence,
> > >then
> > >> > > > it has gone into limp home mode which messes with the timing
> advance
> > >> big
> > >> > > > time.
> > >> > > >
> > >> > > > You can tell by looking at the ignition module, waaayyy down
> under
> > >the
> > >> > > > washer bottle. Check the purple wire coming out of the module.
> If
> > >it
> > >> > > > isn't jumpered to a new wire, you have issues right there.
> Stock,
> > >the
> > >> > > > purple wire goes nowhere, it stops at the first plug.
> > >> > > >
> > >> > > > If you remove any emissions stuff, the ignition has to be
rewired
> to
> > >> > > > work right. It is easy, I always add two new wires rather than
> mess
> > >> > > > inside the harness.
http://home.sprynet.com/~dale02/ignmods.htm
> > >> > > >
> > >> > > > One other thing is carbon build up. That RV cam and running
low
> RPM
> > >> are
> > >> > > > really bad for carbon build up. This will cause pinging.
> > >> > > >
> > >> > > > I run a pint of ATF slowly down the throat of the carb while
> keeping
> > >> it
> > >> > > > running with my hand on the throttle. It cleans the carbon out
> > >great.
> > >> > > > Some folks use a pint of water to do this and say it works well
> too.
> > >> > > >
> > >> > > > Mike
> > >> > > >
> > >> > > > carmine colangelo wrote:
> > >> > > > >
> > >> > > > > i am running a weber carb with the vacume advance taken off
of
> the
> > >> base
> > >> > > of
> > >> > > > > ther carb.so i would assume this is manifold vacume. as far
as
> i
> > >> know
> > >> > > the
> > >> > > > > vacume advance is stock. i am running a one line fuel filter
> with
> > >a
> > >> > > pressure
> > >> > > > > regulator. i dont know if stock timing would apply to my jeep
> > >> because it
> > >> > > is
> > >> > > > > a 86 with a r.v. cam and all the computer and emmision stuff
> taken
> > >> off.
> > >> > > > > thanks carmine
> > >> > > > >
> > >> > > > > "Mike Romain" <romainm@sympatico.ca> wrote in message
> > >> > > > > news:40C9C480.E0C7EDEC@sympatico.ca...
> > >> > > > > > What kind of carb are you running?
> > >> > > > > >
> > >> > > > > > Do you have the correct gas filter in it and is it in right
> side
> > >> up?
> > >> > > > > >
> > >> > > > > > Which vacuum advance are you running?
> > >> > > > > >
> > >> > > > > > Mike
> > >> > > > > > 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in
'00
> > >> > > > > > 88 Cherokee 235 BFG AT's
> > >> > > > > >
> > >> > > > > > carmine colangelo wrote:
> > >> > > > > > >
> > >> > > > > > > with the gas prices going so high i am tying to get my
1986
> > >jeep
> > >> cj7
> > >> > > 258
> > >> > > > > 6
> > >> > > > > > > cyl with a r.v. cam (for low torque) to run on pump gas.
i
> > >have
> > >> a
> > >> > > msd ss
> > >> > > > > > > coil, lighter centrifigal advance spring in it. i was
> running
> > >12
> > >> > > degrees
> > >> > > > > > > advance on super unleaded and had to go all the way down
to
> 6
> > >> > > degrees to
> > >> > > > > get
> > >> > > > > > > it to stop pinging up hills. but now it is allot harder
to
> > >start
> > >> > > when it
> > >> > > > > is
> > >> > > > > > > cold. anyone have any ideas what i could do to get it to
> start
> > >> > > better?
> > >> > > > > is 6
> > >> > > > > > > degrees to low on the timing? should i put the stock
> > >centrifigal
> > >> > > spring
> > >> > > > > back
> > >> > > > > > > in it to not get so much advance at higher rpm's? i just
> want
> > >to
> > >> get
> > >> > > the
> > >> > > > > > > jeep to run on pump gas and start nice. thanks carmine
> > >>
> > >>
> > >
> >
>
>
06-12-2004, 10:22 AM
#56
Guest
Posts: n/a
Re: ignition questions?
thanks for all the info guys. thanks carmine
"c" <c@me.org> wrote in message
news:xfvyc.12645$Fd.6959@twister.rdc-kc.rr.com...
> Some engines have an adjustment. The aftermarket ones have this
adjustment,
> as well as a stepped limiter plate that is used to limit the amount of
> advance. The adjustment inside the nipple is for adjusting the amount of
> vacuum it takes to pull the advance lever. This might be all he needs.
>
> Chris
>
> "bllsht" <nospam@invaliddot.net> wrote in message
> news:qrvkc01ff125fstb7qung30ppr2kl43vnd@4ax.com...
> > I'm pretty sure the vacuum advance on the 258 IS adjustable. I know for
> sure
> > the V8 engines were. It's takes a 1/8" allen wrench inserted into the
> vacuum
> > nipple to adjust it.
> >
> >
> >
> > In message <JNsyc.12624$Fd.11018@twister.rdc-kc.rr.com>, "c" wrote:
> >
> > >Carmine,
> > >After thinking about this a bit, your RV cam could be building more
> cylinder
> > >pressure than the stock cam did. These cams generally have a short
> duration,
> > >high lift lobe profile. The extra cylinder pressure could be causing
the
> > >pinging. With that said, you may want to try another approach by using
an
> > >adjustable vacuum advance kit. Crane and others make them, but I don't
> know
> > >if they make them for your engine. They do make them for the GM HEI
> though,
> > >and this may be a good time to do this swap if you want. The adjustable
> vac.
> > >advance will allow you to adjust how much advance, and at what vacuum
> > >reading it starts. The kits also come with centrifugal weight springs
> > >similar to what you have installed already. Here is a link to the
> product:
> > >
> > >http://www.cranecams.com/index.php?s...s&lvl=3&prt=29
> > >
> > >Chris
> > >
> > >
> > >"carmine colangelo" <carmine7@optonline.net> wrote in message
> > >news:Njryc.11796$0g3.3315692@news4.srv.hcvlny.cv. net...
> > >> yeah it sure did dump out some white smoke. even more smoke than the
2
> > >> stokes i'm used to working on. but i still cant get the timing above
7
> > >> degrees with out pinging. are there different vacume advances i can
> bolt
> > >to
> > >> the distributer? it seems to me i need more advance on cold starts
and
> > >less
> > >> timing advance around 2500 rpm's when i am coming up a hill. i'm just
> not
> > >> sure how to go about doing it.
> > >> thanks carmine
> > >>
> > >> "Mike Romain" <romainm@sympatico.ca> wrote in message
> > >> news:40CA3B4C.EAB6C04B@sympatico.ca...
> > >> > I have seen lots of folks miss that wiring bit, so it is worth
> checking.
> > >> >
> > >> > Pour the ATF slow while keeping it running and be warned it 'will'
> give
> > >> > off one massive white smoke cloud.
> > >> >
> > >> > Mike
> > >> >
> > >> > carmine colangelo wrote:
> > >> > >
> > >> > > i traced the purple wire from the ignition module and it goes to
> the
> > >> > > distributer. i dont think the computer is even on the jeep any
> more.
> > >it
> > >> was
> > >> > > removed before i bought it. i will try putting a pint of ATF in
it
> to
> > >> remove
> > >> > > some of the carbon
> > >> > > thanks carmine
> > >> > >
> > >> > > "Mike Romain" <romainm@sympatico.ca> wrote in message
> > >> > > news:40CA1FCD.DC9DABA5@sympatico.ca...
> > >> > > > Do you physically have the ignition module connected directly
to
> the
> > >> > > > distributor or does it still go through the computer?
> > >> > > >
> > >> > > > The reason I ask is if the computer is still a physical
presence,
> > >then
> > >> > > > it has gone into limp home mode which messes with the timing
> advance
> > >> big
> > >> > > > time.
> > >> > > >
> > >> > > > You can tell by looking at the ignition module, waaayyy down
> under
> > >the
> > >> > > > washer bottle. Check the purple wire coming out of the module.
> If
> > >it
> > >> > > > isn't jumpered to a new wire, you have issues right there.
> Stock,
> > >the
> > >> > > > purple wire goes nowhere, it stops at the first plug.
> > >> > > >
> > >> > > > If you remove any emissions stuff, the ignition has to be
rewired
> to
> > >> > > > work right. It is easy, I always add two new wires rather than
> mess
> > >> > > > inside the harness.
http://home.sprynet.com/~dale02/ignmods.htm
> > >> > > >
> > >> > > > One other thing is carbon build up. That RV cam and running
low
> RPM
> > >> are
> > >> > > > really bad for carbon build up. This will cause pinging.
> > >> > > >
> > >> > > > I run a pint of ATF slowly down the throat of the carb while
> keeping
> > >> it
> > >> > > > running with my hand on the throttle. It cleans the carbon out
> > >great.
> > >> > > > Some folks use a pint of water to do this and say it works well
> too.
> > >> > > >
> > >> > > > Mike
> > >> > > >
> > >> > > > carmine colangelo wrote:
> > >> > > > >
> > >> > > > > i am running a weber carb with the vacume advance taken off
of
> the
> > >> base
> > >> > > of
> > >> > > > > ther carb.so i would assume this is manifold vacume. as far
as
> i
> > >> know
> > >> > > the
> > >> > > > > vacume advance is stock. i am running a one line fuel filter
> with
> > >a
> > >> > > pressure
> > >> > > > > regulator. i dont know if stock timing would apply to my jeep
> > >> because it
> > >> > > is
> > >> > > > > a 86 with a r.v. cam and all the computer and emmision stuff
> taken
> > >> off.
> > >> > > > > thanks carmine
> > >> > > > >
> > >> > > > > "Mike Romain" <romainm@sympatico.ca> wrote in message
> > >> > > > > news:40C9C480.E0C7EDEC@sympatico.ca...
> > >> > > > > > What kind of carb are you running?
> > >> > > > > >
> > >> > > > > > Do you have the correct gas filter in it and is it in right
> side
> > >> up?
> > >> > > > > >
> > >> > > > > > Which vacuum advance are you running?
> > >> > > > > >
> > >> > > > > > Mike
> > >> > > > > > 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in
'00
> > >> > > > > > 88 Cherokee 235 BFG AT's
> > >> > > > > >
> > >> > > > > > carmine colangelo wrote:
> > >> > > > > > >
> > >> > > > > > > with the gas prices going so high i am tying to get my
1986
> > >jeep
> > >> cj7
> > >> > > 258
> > >> > > > > 6
> > >> > > > > > > cyl with a r.v. cam (for low torque) to run on pump gas.
i
> > >have
> > >> a
> > >> > > msd ss
> > >> > > > > > > coil, lighter centrifigal advance spring in it. i was
> running
> > >12
> > >> > > degrees
> > >> > > > > > > advance on super unleaded and had to go all the way down
to
> 6
> > >> > > degrees to
> > >> > > > > get
> > >> > > > > > > it to stop pinging up hills. but now it is allot harder
to
> > >start
> > >> > > when it
> > >> > > > > is
> > >> > > > > > > cold. anyone have any ideas what i could do to get it to
> start
> > >> > > better?
> > >> > > > > is 6
> > >> > > > > > > degrees to low on the timing? should i put the stock
> > >centrifigal
> > >> > > spring
> > >> > > > > back
> > >> > > > > > > in it to not get so much advance at higher rpm's? i just
> want
> > >to
> > >> get
> > >> > > the
> > >> > > > > > > jeep to run on pump gas and start nice. thanks carmine
> > >>
> > >>
> > >
> >
>
>
"c" <c@me.org> wrote in message
news:xfvyc.12645$Fd.6959@twister.rdc-kc.rr.com...
> Some engines have an adjustment. The aftermarket ones have this
adjustment,
> as well as a stepped limiter plate that is used to limit the amount of
> advance. The adjustment inside the nipple is for adjusting the amount of
> vacuum it takes to pull the advance lever. This might be all he needs.
>
> Chris
>
> "bllsht" <nospam@invaliddot.net> wrote in message
> news:qrvkc01ff125fstb7qung30ppr2kl43vnd@4ax.com...
> > I'm pretty sure the vacuum advance on the 258 IS adjustable. I know for
> sure
> > the V8 engines were. It's takes a 1/8" allen wrench inserted into the
> vacuum
> > nipple to adjust it.
> >
> >
> >
> > In message <JNsyc.12624$Fd.11018@twister.rdc-kc.rr.com>, "c" wrote:
> >
> > >Carmine,
> > >After thinking about this a bit, your RV cam could be building more
> cylinder
> > >pressure than the stock cam did. These cams generally have a short
> duration,
> > >high lift lobe profile. The extra cylinder pressure could be causing
the
> > >pinging. With that said, you may want to try another approach by using
an
> > >adjustable vacuum advance kit. Crane and others make them, but I don't
> know
> > >if they make them for your engine. They do make them for the GM HEI
> though,
> > >and this may be a good time to do this swap if you want. The adjustable
> vac.
> > >advance will allow you to adjust how much advance, and at what vacuum
> > >reading it starts. The kits also come with centrifugal weight springs
> > >similar to what you have installed already. Here is a link to the
> product:
> > >
> > >http://www.cranecams.com/index.php?s...s&lvl=3&prt=29
> > >
> > >Chris
> > >
> > >
> > >"carmine colangelo" <carmine7@optonline.net> wrote in message
> > >news:Njryc.11796$0g3.3315692@news4.srv.hcvlny.cv. net...
> > >> yeah it sure did dump out some white smoke. even more smoke than the
2
> > >> stokes i'm used to working on. but i still cant get the timing above
7
> > >> degrees with out pinging. are there different vacume advances i can
> bolt
> > >to
> > >> the distributer? it seems to me i need more advance on cold starts
and
> > >less
> > >> timing advance around 2500 rpm's when i am coming up a hill. i'm just
> not
> > >> sure how to go about doing it.
> > >> thanks carmine
> > >>
> > >> "Mike Romain" <romainm@sympatico.ca> wrote in message
> > >> news:40CA3B4C.EAB6C04B@sympatico.ca...
> > >> > I have seen lots of folks miss that wiring bit, so it is worth
> checking.
> > >> >
> > >> > Pour the ATF slow while keeping it running and be warned it 'will'
> give
> > >> > off one massive white smoke cloud.
> > >> >
> > >> > Mike
> > >> >
> > >> > carmine colangelo wrote:
> > >> > >
> > >> > > i traced the purple wire from the ignition module and it goes to
> the
> > >> > > distributer. i dont think the computer is even on the jeep any
> more.
> > >it
> > >> was
> > >> > > removed before i bought it. i will try putting a pint of ATF in
it
> to
> > >> remove
> > >> > > some of the carbon
> > >> > > thanks carmine
> > >> > >
> > >> > > "Mike Romain" <romainm@sympatico.ca> wrote in message
> > >> > > news:40CA1FCD.DC9DABA5@sympatico.ca...
> > >> > > > Do you physically have the ignition module connected directly
to
> the
> > >> > > > distributor or does it still go through the computer?
> > >> > > >
> > >> > > > The reason I ask is if the computer is still a physical
presence,
> > >then
> > >> > > > it has gone into limp home mode which messes with the timing
> advance
> > >> big
> > >> > > > time.
> > >> > > >
> > >> > > > You can tell by looking at the ignition module, waaayyy down
> under
> > >the
> > >> > > > washer bottle. Check the purple wire coming out of the module.
> If
> > >it
> > >> > > > isn't jumpered to a new wire, you have issues right there.
> Stock,
> > >the
> > >> > > > purple wire goes nowhere, it stops at the first plug.
> > >> > > >
> > >> > > > If you remove any emissions stuff, the ignition has to be
rewired
> to
> > >> > > > work right. It is easy, I always add two new wires rather than
> mess
> > >> > > > inside the harness.
http://home.sprynet.com/~dale02/ignmods.htm
> > >> > > >
> > >> > > > One other thing is carbon build up. That RV cam and running
low
> RPM
> > >> are
> > >> > > > really bad for carbon build up. This will cause pinging.
> > >> > > >
> > >> > > > I run a pint of ATF slowly down the throat of the carb while
> keeping
> > >> it
> > >> > > > running with my hand on the throttle. It cleans the carbon out
> > >great.
> > >> > > > Some folks use a pint of water to do this and say it works well
> too.
> > >> > > >
> > >> > > > Mike
> > >> > > >
> > >> > > > carmine colangelo wrote:
> > >> > > > >
> > >> > > > > i am running a weber carb with the vacume advance taken off
of
> the
> > >> base
> > >> > > of
> > >> > > > > ther carb.so i would assume this is manifold vacume. as far
as
> i
> > >> know
> > >> > > the
> > >> > > > > vacume advance is stock. i am running a one line fuel filter
> with
> > >a
> > >> > > pressure
> > >> > > > > regulator. i dont know if stock timing would apply to my jeep
> > >> because it
> > >> > > is
> > >> > > > > a 86 with a r.v. cam and all the computer and emmision stuff
> taken
> > >> off.
> > >> > > > > thanks carmine
> > >> > > > >
> > >> > > > > "Mike Romain" <romainm@sympatico.ca> wrote in message
> > >> > > > > news:40C9C480.E0C7EDEC@sympatico.ca...
> > >> > > > > > What kind of carb are you running?
> > >> > > > > >
> > >> > > > > > Do you have the correct gas filter in it and is it in right
> side
> > >> up?
> > >> > > > > >
> > >> > > > > > Which vacuum advance are you running?
> > >> > > > > >
> > >> > > > > > Mike
> > >> > > > > > 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in
'00
> > >> > > > > > 88 Cherokee 235 BFG AT's
> > >> > > > > >
> > >> > > > > > carmine colangelo wrote:
> > >> > > > > > >
> > >> > > > > > > with the gas prices going so high i am tying to get my
1986
> > >jeep
> > >> cj7
> > >> > > 258
> > >> > > > > 6
> > >> > > > > > > cyl with a r.v. cam (for low torque) to run on pump gas.
i
> > >have
> > >> a
> > >> > > msd ss
> > >> > > > > > > coil, lighter centrifigal advance spring in it. i was
> running
> > >12
> > >> > > degrees
> > >> > > > > > > advance on super unleaded and had to go all the way down
to
> 6
> > >> > > degrees to
> > >> > > > > get
> > >> > > > > > > it to stop pinging up hills. but now it is allot harder
to
> > >start
> > >> > > when it
> > >> > > > > is
> > >> > > > > > > cold. anyone have any ideas what i could do to get it to
> start
> > >> > > better?
> > >> > > > > is 6
> > >> > > > > > > degrees to low on the timing? should i put the stock
> > >centrifigal
> > >> > > spring
> > >> > > > > back
> > >> > > > > > > in it to not get so much advance at higher rpm's? i just
> want
> > >to
> > >> get
> > >> > > the
> > >> > > > > > > jeep to run on pump gas and start nice. thanks carmine
> > >>
> > >>
> > >
> >
>
>
06-12-2004, 10:22 AM
#57
Guest
Posts: n/a
Re: ignition questions?
thanks for all the info guys. thanks carmine
"c" <c@me.org> wrote in message
news:xfvyc.12645$Fd.6959@twister.rdc-kc.rr.com...
> Some engines have an adjustment. The aftermarket ones have this
adjustment,
> as well as a stepped limiter plate that is used to limit the amount of
> advance. The adjustment inside the nipple is for adjusting the amount of
> vacuum it takes to pull the advance lever. This might be all he needs.
>
> Chris
>
> "bllsht" <nospam@invaliddot.net> wrote in message
> news:qrvkc01ff125fstb7qung30ppr2kl43vnd@4ax.com...
> > I'm pretty sure the vacuum advance on the 258 IS adjustable. I know for
> sure
> > the V8 engines were. It's takes a 1/8" allen wrench inserted into the
> vacuum
> > nipple to adjust it.
> >
> >
> >
> > In message <JNsyc.12624$Fd.11018@twister.rdc-kc.rr.com>, "c" wrote:
> >
> > >Carmine,
> > >After thinking about this a bit, your RV cam could be building more
> cylinder
> > >pressure than the stock cam did. These cams generally have a short
> duration,
> > >high lift lobe profile. The extra cylinder pressure could be causing
the
> > >pinging. With that said, you may want to try another approach by using
an
> > >adjustable vacuum advance kit. Crane and others make them, but I don't
> know
> > >if they make them for your engine. They do make them for the GM HEI
> though,
> > >and this may be a good time to do this swap if you want. The adjustable
> vac.
> > >advance will allow you to adjust how much advance, and at what vacuum
> > >reading it starts. The kits also come with centrifugal weight springs
> > >similar to what you have installed already. Here is a link to the
> product:
> > >
> > >http://www.cranecams.com/index.php?s...s&lvl=3&prt=29
> > >
> > >Chris
> > >
> > >
> > >"carmine colangelo" <carmine7@optonline.net> wrote in message
> > >news:Njryc.11796$0g3.3315692@news4.srv.hcvlny.cv. net...
> > >> yeah it sure did dump out some white smoke. even more smoke than the
2
> > >> stokes i'm used to working on. but i still cant get the timing above
7
> > >> degrees with out pinging. are there different vacume advances i can
> bolt
> > >to
> > >> the distributer? it seems to me i need more advance on cold starts
and
> > >less
> > >> timing advance around 2500 rpm's when i am coming up a hill. i'm just
> not
> > >> sure how to go about doing it.
> > >> thanks carmine
> > >>
> > >> "Mike Romain" <romainm@sympatico.ca> wrote in message
> > >> news:40CA3B4C.EAB6C04B@sympatico.ca...
> > >> > I have seen lots of folks miss that wiring bit, so it is worth
> checking.
> > >> >
> > >> > Pour the ATF slow while keeping it running and be warned it 'will'
> give
> > >> > off one massive white smoke cloud.
> > >> >
> > >> > Mike
> > >> >
> > >> > carmine colangelo wrote:
> > >> > >
> > >> > > i traced the purple wire from the ignition module and it goes to
> the
> > >> > > distributer. i dont think the computer is even on the jeep any
> more.
> > >it
> > >> was
> > >> > > removed before i bought it. i will try putting a pint of ATF in
it
> to
> > >> remove
> > >> > > some of the carbon
> > >> > > thanks carmine
> > >> > >
> > >> > > "Mike Romain" <romainm@sympatico.ca> wrote in message
> > >> > > news:40CA1FCD.DC9DABA5@sympatico.ca...
> > >> > > > Do you physically have the ignition module connected directly
to
> the
> > >> > > > distributor or does it still go through the computer?
> > >> > > >
> > >> > > > The reason I ask is if the computer is still a physical
presence,
> > >then
> > >> > > > it has gone into limp home mode which messes with the timing
> advance
> > >> big
> > >> > > > time.
> > >> > > >
> > >> > > > You can tell by looking at the ignition module, waaayyy down
> under
> > >the
> > >> > > > washer bottle. Check the purple wire coming out of the module.
> If
> > >it
> > >> > > > isn't jumpered to a new wire, you have issues right there.
> Stock,
> > >the
> > >> > > > purple wire goes nowhere, it stops at the first plug.
> > >> > > >
> > >> > > > If you remove any emissions stuff, the ignition has to be
rewired
> to
> > >> > > > work right. It is easy, I always add two new wires rather than
> mess
> > >> > > > inside the harness.
http://home.sprynet.com/~dale02/ignmods.htm
> > >> > > >
> > >> > > > One other thing is carbon build up. That RV cam and running
low
> RPM
> > >> are
> > >> > > > really bad for carbon build up. This will cause pinging.
> > >> > > >
> > >> > > > I run a pint of ATF slowly down the throat of the carb while
> keeping
> > >> it
> > >> > > > running with my hand on the throttle. It cleans the carbon out
> > >great.
> > >> > > > Some folks use a pint of water to do this and say it works well
> too.
> > >> > > >
> > >> > > > Mike
> > >> > > >
> > >> > > > carmine colangelo wrote:
> > >> > > > >
> > >> > > > > i am running a weber carb with the vacume advance taken off
of
> the
> > >> base
> > >> > > of
> > >> > > > > ther carb.so i would assume this is manifold vacume. as far
as
> i
> > >> know
> > >> > > the
> > >> > > > > vacume advance is stock. i am running a one line fuel filter
> with
> > >a
> > >> > > pressure
> > >> > > > > regulator. i dont know if stock timing would apply to my jeep
> > >> because it
> > >> > > is
> > >> > > > > a 86 with a r.v. cam and all the computer and emmision stuff
> taken
> > >> off.
> > >> > > > > thanks carmine
> > >> > > > >
> > >> > > > > "Mike Romain" <romainm@sympatico.ca> wrote in message
> > >> > > > > news:40C9C480.E0C7EDEC@sympatico.ca...
> > >> > > > > > What kind of carb are you running?
> > >> > > > > >
> > >> > > > > > Do you have the correct gas filter in it and is it in right
> side
> > >> up?
> > >> > > > > >
> > >> > > > > > Which vacuum advance are you running?
> > >> > > > > >
> > >> > > > > > Mike
> > >> > > > > > 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in
'00
> > >> > > > > > 88 Cherokee 235 BFG AT's
> > >> > > > > >
> > >> > > > > > carmine colangelo wrote:
> > >> > > > > > >
> > >> > > > > > > with the gas prices going so high i am tying to get my
1986
> > >jeep
> > >> cj7
> > >> > > 258
> > >> > > > > 6
> > >> > > > > > > cyl with a r.v. cam (for low torque) to run on pump gas.
i
> > >have
> > >> a
> > >> > > msd ss
> > >> > > > > > > coil, lighter centrifigal advance spring in it. i was
> running
> > >12
> > >> > > degrees
> > >> > > > > > > advance on super unleaded and had to go all the way down
to
> 6
> > >> > > degrees to
> > >> > > > > get
> > >> > > > > > > it to stop pinging up hills. but now it is allot harder
to
> > >start
> > >> > > when it
> > >> > > > > is
> > >> > > > > > > cold. anyone have any ideas what i could do to get it to
> start
> > >> > > better?
> > >> > > > > is 6
> > >> > > > > > > degrees to low on the timing? should i put the stock
> > >centrifigal
> > >> > > spring
> > >> > > > > back
> > >> > > > > > > in it to not get so much advance at higher rpm's? i just
> want
> > >to
> > >> get
> > >> > > the
> > >> > > > > > > jeep to run on pump gas and start nice. thanks carmine
> > >>
> > >>
> > >
> >
>
>
"c" <c@me.org> wrote in message
news:xfvyc.12645$Fd.6959@twister.rdc-kc.rr.com...
> Some engines have an adjustment. The aftermarket ones have this
adjustment,
> as well as a stepped limiter plate that is used to limit the amount of
> advance. The adjustment inside the nipple is for adjusting the amount of
> vacuum it takes to pull the advance lever. This might be all he needs.
>
> Chris
>
> "bllsht" <nospam@invaliddot.net> wrote in message
> news:qrvkc01ff125fstb7qung30ppr2kl43vnd@4ax.com...
> > I'm pretty sure the vacuum advance on the 258 IS adjustable. I know for
> sure
> > the V8 engines were. It's takes a 1/8" allen wrench inserted into the
> vacuum
> > nipple to adjust it.
> >
> >
> >
> > In message <JNsyc.12624$Fd.11018@twister.rdc-kc.rr.com>, "c" wrote:
> >
> > >Carmine,
> > >After thinking about this a bit, your RV cam could be building more
> cylinder
> > >pressure than the stock cam did. These cams generally have a short
> duration,
> > >high lift lobe profile. The extra cylinder pressure could be causing
the
> > >pinging. With that said, you may want to try another approach by using
an
> > >adjustable vacuum advance kit. Crane and others make them, but I don't
> know
> > >if they make them for your engine. They do make them for the GM HEI
> though,
> > >and this may be a good time to do this swap if you want. The adjustable
> vac.
> > >advance will allow you to adjust how much advance, and at what vacuum
> > >reading it starts. The kits also come with centrifugal weight springs
> > >similar to what you have installed already. Here is a link to the
> product:
> > >
> > >http://www.cranecams.com/index.php?s...s&lvl=3&prt=29
> > >
> > >Chris
> > >
> > >
> > >"carmine colangelo" <carmine7@optonline.net> wrote in message
> > >news:Njryc.11796$0g3.3315692@news4.srv.hcvlny.cv. net...
> > >> yeah it sure did dump out some white smoke. even more smoke than the
2
> > >> stokes i'm used to working on. but i still cant get the timing above
7
> > >> degrees with out pinging. are there different vacume advances i can
> bolt
> > >to
> > >> the distributer? it seems to me i need more advance on cold starts
and
> > >less
> > >> timing advance around 2500 rpm's when i am coming up a hill. i'm just
> not
> > >> sure how to go about doing it.
> > >> thanks carmine
> > >>
> > >> "Mike Romain" <romainm@sympatico.ca> wrote in message
> > >> news:40CA3B4C.EAB6C04B@sympatico.ca...
> > >> > I have seen lots of folks miss that wiring bit, so it is worth
> checking.
> > >> >
> > >> > Pour the ATF slow while keeping it running and be warned it 'will'
> give
> > >> > off one massive white smoke cloud.
> > >> >
> > >> > Mike
> > >> >
> > >> > carmine colangelo wrote:
> > >> > >
> > >> > > i traced the purple wire from the ignition module and it goes to
> the
> > >> > > distributer. i dont think the computer is even on the jeep any
> more.
> > >it
> > >> was
> > >> > > removed before i bought it. i will try putting a pint of ATF in
it
> to
> > >> remove
> > >> > > some of the carbon
> > >> > > thanks carmine
> > >> > >
> > >> > > "Mike Romain" <romainm@sympatico.ca> wrote in message
> > >> > > news:40CA1FCD.DC9DABA5@sympatico.ca...
> > >> > > > Do you physically have the ignition module connected directly
to
> the
> > >> > > > distributor or does it still go through the computer?
> > >> > > >
> > >> > > > The reason I ask is if the computer is still a physical
presence,
> > >then
> > >> > > > it has gone into limp home mode which messes with the timing
> advance
> > >> big
> > >> > > > time.
> > >> > > >
> > >> > > > You can tell by looking at the ignition module, waaayyy down
> under
> > >the
> > >> > > > washer bottle. Check the purple wire coming out of the module.
> If
> > >it
> > >> > > > isn't jumpered to a new wire, you have issues right there.
> Stock,
> > >the
> > >> > > > purple wire goes nowhere, it stops at the first plug.
> > >> > > >
> > >> > > > If you remove any emissions stuff, the ignition has to be
rewired
> to
> > >> > > > work right. It is easy, I always add two new wires rather than
> mess
> > >> > > > inside the harness.
http://home.sprynet.com/~dale02/ignmods.htm
> > >> > > >
> > >> > > > One other thing is carbon build up. That RV cam and running
low
> RPM
> > >> are
> > >> > > > really bad for carbon build up. This will cause pinging.
> > >> > > >
> > >> > > > I run a pint of ATF slowly down the throat of the carb while
> keeping
> > >> it
> > >> > > > running with my hand on the throttle. It cleans the carbon out
> > >great.
> > >> > > > Some folks use a pint of water to do this and say it works well
> too.
> > >> > > >
> > >> > > > Mike
> > >> > > >
> > >> > > > carmine colangelo wrote:
> > >> > > > >
> > >> > > > > i am running a weber carb with the vacume advance taken off
of
> the
> > >> base
> > >> > > of
> > >> > > > > ther carb.so i would assume this is manifold vacume. as far
as
> i
> > >> know
> > >> > > the
> > >> > > > > vacume advance is stock. i am running a one line fuel filter
> with
> > >a
> > >> > > pressure
> > >> > > > > regulator. i dont know if stock timing would apply to my jeep
> > >> because it
> > >> > > is
> > >> > > > > a 86 with a r.v. cam and all the computer and emmision stuff
> taken
> > >> off.
> > >> > > > > thanks carmine
> > >> > > > >
> > >> > > > > "Mike Romain" <romainm@sympatico.ca> wrote in message
> > >> > > > > news:40C9C480.E0C7EDEC@sympatico.ca...
> > >> > > > > > What kind of carb are you running?
> > >> > > > > >
> > >> > > > > > Do you have the correct gas filter in it and is it in right
> side
> > >> up?
> > >> > > > > >
> > >> > > > > > Which vacuum advance are you running?
> > >> > > > > >
> > >> > > > > > Mike
> > >> > > > > > 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in
'00
> > >> > > > > > 88 Cherokee 235 BFG AT's
> > >> > > > > >
> > >> > > > > > carmine colangelo wrote:
> > >> > > > > > >
> > >> > > > > > > with the gas prices going so high i am tying to get my
1986
> > >jeep
> > >> cj7
> > >> > > 258
> > >> > > > > 6
> > >> > > > > > > cyl with a r.v. cam (for low torque) to run on pump gas.
i
> > >have
> > >> a
> > >> > > msd ss
> > >> > > > > > > coil, lighter centrifigal advance spring in it. i was
> running
> > >12
> > >> > > degrees
> > >> > > > > > > advance on super unleaded and had to go all the way down
to
> 6
> > >> > > degrees to
> > >> > > > > get
> > >> > > > > > > it to stop pinging up hills. but now it is allot harder
to
> > >start
> > >> > > when it
> > >> > > > > is
> > >> > > > > > > cold. anyone have any ideas what i could do to get it to
> start
> > >> > > better?
> > >> > > > > is 6
> > >> > > > > > > degrees to low on the timing? should i put the stock
> > >centrifigal
> > >> > > spring
> > >> > > > > back
> > >> > > > > > > in it to not get so much advance at higher rpm's? i just
> want
> > >to
> > >> get
> > >> > > the
> > >> > > > > > > jeep to run on pump gas and start nice. thanks carmine
> > >>
> > >>
> > >
> >
>
>
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