Cylinder compression 150 per cylinder good?
01-17-2004, 01:36 PM
#81
Guest
Posts: n/a
Re: Cylinder compression 150 per cylinder good?
Close to the pencil size. If you have your hand on the throttle and are
keeping it say at 1200 rpm or so so it won't stall, the pour speed will
be obvious. Too fast and the engine will start to chug down fast.
Mike
Drink wrote:
>
> Hey Mike,
> How slowly is "slowly". Are we talking about a pouring stream with
> thickness of a #2 pencil lead or the thickness of the whole pencil?
> (Not being sarcastic. I just thought I'd ask to clarify the term.)
> o_o_o_o
> Best Regards, /| ,[_____],
> Jim, WP3JQ |ŻŻŻL --O|||||||O-
> ()_)Ż()_) ŻŻŻŻŻ )_)
> EM60qk 30.447439N 086.628959W
> "Mike Romain" <romainm@sympatico.ca> wrote in message
> news:40045023.D6A67498@sympatico.ca...
> > I like to smoke out my neighbors just to **** one off and use a pint of
> > ATF poured very slowly down the throat of the carb to burn the carbon
> > away.
> >
> > I get the engine hot and slowly pour it in while keeping the rpm up with
> > my hand on the throttle linkages. You don't want it to stall.
> >
> > This method works excellently and makes them clean like new inside. I
> > have opened them up after. I use that as a prep before a head gasket
> > job too.
> >
> > I have been told by lots of folks that a pint of water poured in the
> > same way will do the same job minus the smoke cloud. ATF does make one
> > serious cloud of smoke...
> >
> > If it isn't pinging or dieseling, then a good hard day wheeling with
> > some high rpm or a hard highway run will clean them out good too.
> >
> > Mike
> > 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
> > 88 Cherokee 235 BFG AT's
> >
> > William Oliveri wrote:
> > >
> > > Anyway to clean carbon build up? Is there any product available to do
> this?
> > >
> > > Thanks,
> > >
> > > Bill
> > >
> > > "Mike Romain" <romainm@sympatico.ca> wrote in message
> > > news:40044741.2F07BE69@sympatico.ca...
> > > > Very few gauges are accurate or will read the same on the same engine.
> > > >
> > > > If they are all even, that's a good thing. Too high can mean carbon
> > > > buildup.
> > > >
> > > > Normally carbon isn't a problem until you start to get spark knock or
> > > > ping or until it starts dieseling or running on after the key is
> turned
> > > > off.
> > > >
> > > > Mike
> > > > 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
> > > > 88 Cherokee 235 BFG AT's
> > > >
> > > > William Oliveri wrote:
> > > > >
> > > > > I just got a call from the shop where I took my jeep to have it
> > > diagnosised
> > > > > for engine "strength". The guy told me I have compression of 150
> psi
> > > per
> > > > > cylinder with no variance between each cylinder. I'm thinking
> Great.
> > > > > However, I looked up the specs in my FSM where they say I should
> have
> > > > > between 120 to 140 per cylinder.
> > > > >
> > > > > Can I have too much compression and what would cause that? Could
> the
> > > test
> > > > > be done incorrectly which would present a higher number than it
> really
> > > is?
> > > > >
> > > > > Thanks,
> > > > >
> > > > > Bill
keeping it say at 1200 rpm or so so it won't stall, the pour speed will
be obvious. Too fast and the engine will start to chug down fast.
Mike
Drink wrote:
>
> Hey Mike,
> How slowly is "slowly". Are we talking about a pouring stream with
> thickness of a #2 pencil lead or the thickness of the whole pencil?
> (Not being sarcastic. I just thought I'd ask to clarify the term.)
> o_o_o_o
> Best Regards, /| ,[_____],
> Jim, WP3JQ |ŻŻŻL --O|||||||O-
> ()_)Ż()_) ŻŻŻŻŻ )_)
> EM60qk 30.447439N 086.628959W
> "Mike Romain" <romainm@sympatico.ca> wrote in message
> news:40045023.D6A67498@sympatico.ca...
> > I like to smoke out my neighbors just to **** one off and use a pint of
> > ATF poured very slowly down the throat of the carb to burn the carbon
> > away.
> >
> > I get the engine hot and slowly pour it in while keeping the rpm up with
> > my hand on the throttle linkages. You don't want it to stall.
> >
> > This method works excellently and makes them clean like new inside. I
> > have opened them up after. I use that as a prep before a head gasket
> > job too.
> >
> > I have been told by lots of folks that a pint of water poured in the
> > same way will do the same job minus the smoke cloud. ATF does make one
> > serious cloud of smoke...
> >
> > If it isn't pinging or dieseling, then a good hard day wheeling with
> > some high rpm or a hard highway run will clean them out good too.
> >
> > Mike
> > 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
> > 88 Cherokee 235 BFG AT's
> >
> > William Oliveri wrote:
> > >
> > > Anyway to clean carbon build up? Is there any product available to do
> this?
> > >
> > > Thanks,
> > >
> > > Bill
> > >
> > > "Mike Romain" <romainm@sympatico.ca> wrote in message
> > > news:40044741.2F07BE69@sympatico.ca...
> > > > Very few gauges are accurate or will read the same on the same engine.
> > > >
> > > > If they are all even, that's a good thing. Too high can mean carbon
> > > > buildup.
> > > >
> > > > Normally carbon isn't a problem until you start to get spark knock or
> > > > ping or until it starts dieseling or running on after the key is
> turned
> > > > off.
> > > >
> > > > Mike
> > > > 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
> > > > 88 Cherokee 235 BFG AT's
> > > >
> > > > William Oliveri wrote:
> > > > >
> > > > > I just got a call from the shop where I took my jeep to have it
> > > diagnosised
> > > > > for engine "strength". The guy told me I have compression of 150
> psi
> > > per
> > > > > cylinder with no variance between each cylinder. I'm thinking
> Great.
> > > > > However, I looked up the specs in my FSM where they say I should
> have
> > > > > between 120 to 140 per cylinder.
> > > > >
> > > > > Can I have too much compression and what would cause that? Could
> the
> > > test
> > > > > be done incorrectly which would present a higher number than it
> really
> > > is?
> > > > >
> > > > > Thanks,
> > > > >
> > > > > Bill
01-17-2004, 01:36 PM
#82
Guest
Posts: n/a
Re: Cylinder compression 150 per cylinder good?
Close to the pencil size. If you have your hand on the throttle and are
keeping it say at 1200 rpm or so so it won't stall, the pour speed will
be obvious. Too fast and the engine will start to chug down fast.
Mike
Drink wrote:
>
> Hey Mike,
> How slowly is "slowly". Are we talking about a pouring stream with
> thickness of a #2 pencil lead or the thickness of the whole pencil?
> (Not being sarcastic. I just thought I'd ask to clarify the term.)
> o_o_o_o
> Best Regards, /| ,[_____],
> Jim, WP3JQ |ŻŻŻL --O|||||||O-
> ()_)Ż()_) ŻŻŻŻŻ )_)
> EM60qk 30.447439N 086.628959W
> "Mike Romain" <romainm@sympatico.ca> wrote in message
> news:40045023.D6A67498@sympatico.ca...
> > I like to smoke out my neighbors just to **** one off and use a pint of
> > ATF poured very slowly down the throat of the carb to burn the carbon
> > away.
> >
> > I get the engine hot and slowly pour it in while keeping the rpm up with
> > my hand on the throttle linkages. You don't want it to stall.
> >
> > This method works excellently and makes them clean like new inside. I
> > have opened them up after. I use that as a prep before a head gasket
> > job too.
> >
> > I have been told by lots of folks that a pint of water poured in the
> > same way will do the same job minus the smoke cloud. ATF does make one
> > serious cloud of smoke...
> >
> > If it isn't pinging or dieseling, then a good hard day wheeling with
> > some high rpm or a hard highway run will clean them out good too.
> >
> > Mike
> > 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
> > 88 Cherokee 235 BFG AT's
> >
> > William Oliveri wrote:
> > >
> > > Anyway to clean carbon build up? Is there any product available to do
> this?
> > >
> > > Thanks,
> > >
> > > Bill
> > >
> > > "Mike Romain" <romainm@sympatico.ca> wrote in message
> > > news:40044741.2F07BE69@sympatico.ca...
> > > > Very few gauges are accurate or will read the same on the same engine.
> > > >
> > > > If they are all even, that's a good thing. Too high can mean carbon
> > > > buildup.
> > > >
> > > > Normally carbon isn't a problem until you start to get spark knock or
> > > > ping or until it starts dieseling or running on after the key is
> turned
> > > > off.
> > > >
> > > > Mike
> > > > 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
> > > > 88 Cherokee 235 BFG AT's
> > > >
> > > > William Oliveri wrote:
> > > > >
> > > > > I just got a call from the shop where I took my jeep to have it
> > > diagnosised
> > > > > for engine "strength". The guy told me I have compression of 150
> psi
> > > per
> > > > > cylinder with no variance between each cylinder. I'm thinking
> Great.
> > > > > However, I looked up the specs in my FSM where they say I should
> have
> > > > > between 120 to 140 per cylinder.
> > > > >
> > > > > Can I have too much compression and what would cause that? Could
> the
> > > test
> > > > > be done incorrectly which would present a higher number than it
> really
> > > is?
> > > > >
> > > > > Thanks,
> > > > >
> > > > > Bill
keeping it say at 1200 rpm or so so it won't stall, the pour speed will
be obvious. Too fast and the engine will start to chug down fast.
Mike
Drink wrote:
>
> Hey Mike,
> How slowly is "slowly". Are we talking about a pouring stream with
> thickness of a #2 pencil lead or the thickness of the whole pencil?
> (Not being sarcastic. I just thought I'd ask to clarify the term.)
> o_o_o_o
> Best Regards, /| ,[_____],
> Jim, WP3JQ |ŻŻŻL --O|||||||O-
> ()_)Ż()_) ŻŻŻŻŻ )_)
> EM60qk 30.447439N 086.628959W
> "Mike Romain" <romainm@sympatico.ca> wrote in message
> news:40045023.D6A67498@sympatico.ca...
> > I like to smoke out my neighbors just to **** one off and use a pint of
> > ATF poured very slowly down the throat of the carb to burn the carbon
> > away.
> >
> > I get the engine hot and slowly pour it in while keeping the rpm up with
> > my hand on the throttle linkages. You don't want it to stall.
> >
> > This method works excellently and makes them clean like new inside. I
> > have opened them up after. I use that as a prep before a head gasket
> > job too.
> >
> > I have been told by lots of folks that a pint of water poured in the
> > same way will do the same job minus the smoke cloud. ATF does make one
> > serious cloud of smoke...
> >
> > If it isn't pinging or dieseling, then a good hard day wheeling with
> > some high rpm or a hard highway run will clean them out good too.
> >
> > Mike
> > 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
> > 88 Cherokee 235 BFG AT's
> >
> > William Oliveri wrote:
> > >
> > > Anyway to clean carbon build up? Is there any product available to do
> this?
> > >
> > > Thanks,
> > >
> > > Bill
> > >
> > > "Mike Romain" <romainm@sympatico.ca> wrote in message
> > > news:40044741.2F07BE69@sympatico.ca...
> > > > Very few gauges are accurate or will read the same on the same engine.
> > > >
> > > > If they are all even, that's a good thing. Too high can mean carbon
> > > > buildup.
> > > >
> > > > Normally carbon isn't a problem until you start to get spark knock or
> > > > ping or until it starts dieseling or running on after the key is
> turned
> > > > off.
> > > >
> > > > Mike
> > > > 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
> > > > 88 Cherokee 235 BFG AT's
> > > >
> > > > William Oliveri wrote:
> > > > >
> > > > > I just got a call from the shop where I took my jeep to have it
> > > diagnosised
> > > > > for engine "strength". The guy told me I have compression of 150
> psi
> > > per
> > > > > cylinder with no variance between each cylinder. I'm thinking
> Great.
> > > > > However, I looked up the specs in my FSM where they say I should
> have
> > > > > between 120 to 140 per cylinder.
> > > > >
> > > > > Can I have too much compression and what would cause that? Could
> the
> > > test
> > > > > be done incorrectly which would present a higher number than it
> really
> > > is?
> > > > >
> > > > > Thanks,
> > > > >
> > > > > Bill
01-19-2004, 02:41 PM
#83
Guest
Posts: n/a
Re: Cylinder compression 150 per cylinder good?
Play with the throttle plate to get the idle speed to about 1500 ~ 1750
RPM -- it isn't really important how fast it is going, you want it at the
high idle speed that you might remember from the olden days when the choke
made the motor run fast for the first few minutes in the morning. Then pour
in the ATF (water is better from an environmental perspective) at a rate
that will not stall the engine.
"Drink" <drink@gnt.net> wrote in message
news:bubucm$ui$1@news.utelfla.com...
> Hey Mike,
> How slowly is "slowly". Are we talking about a pouring stream with
> thickness of a #2 pencil lead or the thickness of the whole pencil?
> (Not being sarcastic. I just thought I'd ask to clarify the term.)
> o_o_o_o
> Best Regards, /| ,[_____],
> Jim, WP3JQ |ŻŻŻL --O|||||||O-
> ()_)Ż()_) ŻŻŻŻŻ )_)
> EM60qk 30.447439N 086.628959W
> "Mike Romain" <romainm@sympatico.ca> wrote in message
> news:40045023.D6A67498@sympatico.ca...
> > I like to smoke out my neighbors just to **** one off and use a pint of
> > ATF poured very slowly down the throat of the carb to burn the carbon
> > away.
> >
> > I get the engine hot and slowly pour it in while keeping the rpm up with
> > my hand on the throttle linkages. You don't want it to stall.
> >
> > This method works excellently and makes them clean like new inside. I
> > have opened them up after. I use that as a prep before a head gasket
> > job too.
> >
> > I have been told by lots of folks that a pint of water poured in the
> > same way will do the same job minus the smoke cloud. ATF does make one
> > serious cloud of smoke...
> >
> > If it isn't pinging or dieseling, then a good hard day wheeling with
> > some high rpm or a hard highway run will clean them out good too.
> >
> > Mike
> > 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
> > 88 Cherokee 235 BFG AT's
> >
> > William Oliveri wrote:
> > >
> > > Anyway to clean carbon build up? Is there any product available to do
> this?
> > >
> > > Thanks,
> > >
> > > Bill
> > >
> > > "Mike Romain" <romainm@sympatico.ca> wrote in message
> > > news:40044741.2F07BE69@sympatico.ca...
> > > > Very few gauges are accurate or will read the same on the same
engine.
> > > >
> > > > If they are all even, that's a good thing. Too high can mean carbon
> > > > buildup.
> > > >
> > > > Normally carbon isn't a problem until you start to get spark knock
or
> > > > ping or until it starts dieseling or running on after the key is
> turned
> > > > off.
> > > >
> > > > Mike
> > > > 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
> > > > 88 Cherokee 235 BFG AT's
> > > >
> > > > William Oliveri wrote:
> > > > >
> > > > > I just got a call from the shop where I took my jeep to have it
> > > diagnosised
> > > > > for engine "strength". The guy told me I have compression of 150
> psi
> > > per
> > > > > cylinder with no variance between each cylinder. I'm thinking
> Great.
> > > > > However, I looked up the specs in my FSM where they say I should
> have
> > > > > between 120 to 140 per cylinder.
> > > > >
> > > > > Can I have too much compression and what would cause that? Could
> the
> > > test
> > > > > be done incorrectly which would present a higher number than it
> really
> > > is?
> > > > >
> > > > > Thanks,
> > > > >
> > > > > Bill
>
>
RPM -- it isn't really important how fast it is going, you want it at the
high idle speed that you might remember from the olden days when the choke
made the motor run fast for the first few minutes in the morning. Then pour
in the ATF (water is better from an environmental perspective) at a rate
that will not stall the engine.
"Drink" <drink@gnt.net> wrote in message
news:bubucm$ui$1@news.utelfla.com...
> Hey Mike,
> How slowly is "slowly". Are we talking about a pouring stream with
> thickness of a #2 pencil lead or the thickness of the whole pencil?
> (Not being sarcastic. I just thought I'd ask to clarify the term.)
> o_o_o_o
> Best Regards, /| ,[_____],
> Jim, WP3JQ |ŻŻŻL --O|||||||O-
> ()_)Ż()_) ŻŻŻŻŻ )_)
> EM60qk 30.447439N 086.628959W
> "Mike Romain" <romainm@sympatico.ca> wrote in message
> news:40045023.D6A67498@sympatico.ca...
> > I like to smoke out my neighbors just to **** one off and use a pint of
> > ATF poured very slowly down the throat of the carb to burn the carbon
> > away.
> >
> > I get the engine hot and slowly pour it in while keeping the rpm up with
> > my hand on the throttle linkages. You don't want it to stall.
> >
> > This method works excellently and makes them clean like new inside. I
> > have opened them up after. I use that as a prep before a head gasket
> > job too.
> >
> > I have been told by lots of folks that a pint of water poured in the
> > same way will do the same job minus the smoke cloud. ATF does make one
> > serious cloud of smoke...
> >
> > If it isn't pinging or dieseling, then a good hard day wheeling with
> > some high rpm or a hard highway run will clean them out good too.
> >
> > Mike
> > 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
> > 88 Cherokee 235 BFG AT's
> >
> > William Oliveri wrote:
> > >
> > > Anyway to clean carbon build up? Is there any product available to do
> this?
> > >
> > > Thanks,
> > >
> > > Bill
> > >
> > > "Mike Romain" <romainm@sympatico.ca> wrote in message
> > > news:40044741.2F07BE69@sympatico.ca...
> > > > Very few gauges are accurate or will read the same on the same
engine.
> > > >
> > > > If they are all even, that's a good thing. Too high can mean carbon
> > > > buildup.
> > > >
> > > > Normally carbon isn't a problem until you start to get spark knock
or
> > > > ping or until it starts dieseling or running on after the key is
> turned
> > > > off.
> > > >
> > > > Mike
> > > > 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
> > > > 88 Cherokee 235 BFG AT's
> > > >
> > > > William Oliveri wrote:
> > > > >
> > > > > I just got a call from the shop where I took my jeep to have it
> > > diagnosised
> > > > > for engine "strength". The guy told me I have compression of 150
> psi
> > > per
> > > > > cylinder with no variance between each cylinder. I'm thinking
> Great.
> > > > > However, I looked up the specs in my FSM where they say I should
> have
> > > > > between 120 to 140 per cylinder.
> > > > >
> > > > > Can I have too much compression and what would cause that? Could
> the
> > > test
> > > > > be done incorrectly which would present a higher number than it
> really
> > > is?
> > > > >
> > > > > Thanks,
> > > > >
> > > > > Bill
>
>
01-19-2004, 02:41 PM
#84
Guest
Posts: n/a
Re: Cylinder compression 150 per cylinder good?
Play with the throttle plate to get the idle speed to about 1500 ~ 1750
RPM -- it isn't really important how fast it is going, you want it at the
high idle speed that you might remember from the olden days when the choke
made the motor run fast for the first few minutes in the morning. Then pour
in the ATF (water is better from an environmental perspective) at a rate
that will not stall the engine.
"Drink" <drink@gnt.net> wrote in message
news:bubucm$ui$1@news.utelfla.com...
> Hey Mike,
> How slowly is "slowly". Are we talking about a pouring stream with
> thickness of a #2 pencil lead or the thickness of the whole pencil?
> (Not being sarcastic. I just thought I'd ask to clarify the term.)
> o_o_o_o
> Best Regards, /| ,[_____],
> Jim, WP3JQ |ŻŻŻL --O|||||||O-
> ()_)Ż()_) ŻŻŻŻŻ )_)
> EM60qk 30.447439N 086.628959W
> "Mike Romain" <romainm@sympatico.ca> wrote in message
> news:40045023.D6A67498@sympatico.ca...
> > I like to smoke out my neighbors just to **** one off and use a pint of
> > ATF poured very slowly down the throat of the carb to burn the carbon
> > away.
> >
> > I get the engine hot and slowly pour it in while keeping the rpm up with
> > my hand on the throttle linkages. You don't want it to stall.
> >
> > This method works excellently and makes them clean like new inside. I
> > have opened them up after. I use that as a prep before a head gasket
> > job too.
> >
> > I have been told by lots of folks that a pint of water poured in the
> > same way will do the same job minus the smoke cloud. ATF does make one
> > serious cloud of smoke...
> >
> > If it isn't pinging or dieseling, then a good hard day wheeling with
> > some high rpm or a hard highway run will clean them out good too.
> >
> > Mike
> > 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
> > 88 Cherokee 235 BFG AT's
> >
> > William Oliveri wrote:
> > >
> > > Anyway to clean carbon build up? Is there any product available to do
> this?
> > >
> > > Thanks,
> > >
> > > Bill
> > >
> > > "Mike Romain" <romainm@sympatico.ca> wrote in message
> > > news:40044741.2F07BE69@sympatico.ca...
> > > > Very few gauges are accurate or will read the same on the same
engine.
> > > >
> > > > If they are all even, that's a good thing. Too high can mean carbon
> > > > buildup.
> > > >
> > > > Normally carbon isn't a problem until you start to get spark knock
or
> > > > ping or until it starts dieseling or running on after the key is
> turned
> > > > off.
> > > >
> > > > Mike
> > > > 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
> > > > 88 Cherokee 235 BFG AT's
> > > >
> > > > William Oliveri wrote:
> > > > >
> > > > > I just got a call from the shop where I took my jeep to have it
> > > diagnosised
> > > > > for engine "strength". The guy told me I have compression of 150
> psi
> > > per
> > > > > cylinder with no variance between each cylinder. I'm thinking
> Great.
> > > > > However, I looked up the specs in my FSM where they say I should
> have
> > > > > between 120 to 140 per cylinder.
> > > > >
> > > > > Can I have too much compression and what would cause that? Could
> the
> > > test
> > > > > be done incorrectly which would present a higher number than it
> really
> > > is?
> > > > >
> > > > > Thanks,
> > > > >
> > > > > Bill
>
>
RPM -- it isn't really important how fast it is going, you want it at the
high idle speed that you might remember from the olden days when the choke
made the motor run fast for the first few minutes in the morning. Then pour
in the ATF (water is better from an environmental perspective) at a rate
that will not stall the engine.
"Drink" <drink@gnt.net> wrote in message
news:bubucm$ui$1@news.utelfla.com...
> Hey Mike,
> How slowly is "slowly". Are we talking about a pouring stream with
> thickness of a #2 pencil lead or the thickness of the whole pencil?
> (Not being sarcastic. I just thought I'd ask to clarify the term.)
> o_o_o_o
> Best Regards, /| ,[_____],
> Jim, WP3JQ |ŻŻŻL --O|||||||O-
> ()_)Ż()_) ŻŻŻŻŻ )_)
> EM60qk 30.447439N 086.628959W
> "Mike Romain" <romainm@sympatico.ca> wrote in message
> news:40045023.D6A67498@sympatico.ca...
> > I like to smoke out my neighbors just to **** one off and use a pint of
> > ATF poured very slowly down the throat of the carb to burn the carbon
> > away.
> >
> > I get the engine hot and slowly pour it in while keeping the rpm up with
> > my hand on the throttle linkages. You don't want it to stall.
> >
> > This method works excellently and makes them clean like new inside. I
> > have opened them up after. I use that as a prep before a head gasket
> > job too.
> >
> > I have been told by lots of folks that a pint of water poured in the
> > same way will do the same job minus the smoke cloud. ATF does make one
> > serious cloud of smoke...
> >
> > If it isn't pinging or dieseling, then a good hard day wheeling with
> > some high rpm or a hard highway run will clean them out good too.
> >
> > Mike
> > 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
> > 88 Cherokee 235 BFG AT's
> >
> > William Oliveri wrote:
> > >
> > > Anyway to clean carbon build up? Is there any product available to do
> this?
> > >
> > > Thanks,
> > >
> > > Bill
> > >
> > > "Mike Romain" <romainm@sympatico.ca> wrote in message
> > > news:40044741.2F07BE69@sympatico.ca...
> > > > Very few gauges are accurate or will read the same on the same
engine.
> > > >
> > > > If they are all even, that's a good thing. Too high can mean carbon
> > > > buildup.
> > > >
> > > > Normally carbon isn't a problem until you start to get spark knock
or
> > > > ping or until it starts dieseling or running on after the key is
> turned
> > > > off.
> > > >
> > > > Mike
> > > > 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
> > > > 88 Cherokee 235 BFG AT's
> > > >
> > > > William Oliveri wrote:
> > > > >
> > > > > I just got a call from the shop where I took my jeep to have it
> > > diagnosised
> > > > > for engine "strength". The guy told me I have compression of 150
> psi
> > > per
> > > > > cylinder with no variance between each cylinder. I'm thinking
> Great.
> > > > > However, I looked up the specs in my FSM where they say I should
> have
> > > > > between 120 to 140 per cylinder.
> > > > >
> > > > > Can I have too much compression and what would cause that? Could
> the
> > > test
> > > > > be done incorrectly which would present a higher number than it
> really
> > > is?
> > > > >
> > > > > Thanks,
> > > > >
> > > > > Bill
>
>
01-19-2004, 02:41 PM
#85
Guest
Posts: n/a
Re: Cylinder compression 150 per cylinder good?
Play with the throttle plate to get the idle speed to about 1500 ~ 1750
RPM -- it isn't really important how fast it is going, you want it at the
high idle speed that you might remember from the olden days when the choke
made the motor run fast for the first few minutes in the morning. Then pour
in the ATF (water is better from an environmental perspective) at a rate
that will not stall the engine.
"Drink" <drink@gnt.net> wrote in message
news:bubucm$ui$1@news.utelfla.com...
> Hey Mike,
> How slowly is "slowly". Are we talking about a pouring stream with
> thickness of a #2 pencil lead or the thickness of the whole pencil?
> (Not being sarcastic. I just thought I'd ask to clarify the term.)
> o_o_o_o
> Best Regards, /| ,[_____],
> Jim, WP3JQ |ŻŻŻL --O|||||||O-
> ()_)Ż()_) ŻŻŻŻŻ )_)
> EM60qk 30.447439N 086.628959W
> "Mike Romain" <romainm@sympatico.ca> wrote in message
> news:40045023.D6A67498@sympatico.ca...
> > I like to smoke out my neighbors just to **** one off and use a pint of
> > ATF poured very slowly down the throat of the carb to burn the carbon
> > away.
> >
> > I get the engine hot and slowly pour it in while keeping the rpm up with
> > my hand on the throttle linkages. You don't want it to stall.
> >
> > This method works excellently and makes them clean like new inside. I
> > have opened them up after. I use that as a prep before a head gasket
> > job too.
> >
> > I have been told by lots of folks that a pint of water poured in the
> > same way will do the same job minus the smoke cloud. ATF does make one
> > serious cloud of smoke...
> >
> > If it isn't pinging or dieseling, then a good hard day wheeling with
> > some high rpm or a hard highway run will clean them out good too.
> >
> > Mike
> > 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
> > 88 Cherokee 235 BFG AT's
> >
> > William Oliveri wrote:
> > >
> > > Anyway to clean carbon build up? Is there any product available to do
> this?
> > >
> > > Thanks,
> > >
> > > Bill
> > >
> > > "Mike Romain" <romainm@sympatico.ca> wrote in message
> > > news:40044741.2F07BE69@sympatico.ca...
> > > > Very few gauges are accurate or will read the same on the same
engine.
> > > >
> > > > If they are all even, that's a good thing. Too high can mean carbon
> > > > buildup.
> > > >
> > > > Normally carbon isn't a problem until you start to get spark knock
or
> > > > ping or until it starts dieseling or running on after the key is
> turned
> > > > off.
> > > >
> > > > Mike
> > > > 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
> > > > 88 Cherokee 235 BFG AT's
> > > >
> > > > William Oliveri wrote:
> > > > >
> > > > > I just got a call from the shop where I took my jeep to have it
> > > diagnosised
> > > > > for engine "strength". The guy told me I have compression of 150
> psi
> > > per
> > > > > cylinder with no variance between each cylinder. I'm thinking
> Great.
> > > > > However, I looked up the specs in my FSM where they say I should
> have
> > > > > between 120 to 140 per cylinder.
> > > > >
> > > > > Can I have too much compression and what would cause that? Could
> the
> > > test
> > > > > be done incorrectly which would present a higher number than it
> really
> > > is?
> > > > >
> > > > > Thanks,
> > > > >
> > > > > Bill
>
>
RPM -- it isn't really important how fast it is going, you want it at the
high idle speed that you might remember from the olden days when the choke
made the motor run fast for the first few minutes in the morning. Then pour
in the ATF (water is better from an environmental perspective) at a rate
that will not stall the engine.
"Drink" <drink@gnt.net> wrote in message
news:bubucm$ui$1@news.utelfla.com...
> Hey Mike,
> How slowly is "slowly". Are we talking about a pouring stream with
> thickness of a #2 pencil lead or the thickness of the whole pencil?
> (Not being sarcastic. I just thought I'd ask to clarify the term.)
> o_o_o_o
> Best Regards, /| ,[_____],
> Jim, WP3JQ |ŻŻŻL --O|||||||O-
> ()_)Ż()_) ŻŻŻŻŻ )_)
> EM60qk 30.447439N 086.628959W
> "Mike Romain" <romainm@sympatico.ca> wrote in message
> news:40045023.D6A67498@sympatico.ca...
> > I like to smoke out my neighbors just to **** one off and use a pint of
> > ATF poured very slowly down the throat of the carb to burn the carbon
> > away.
> >
> > I get the engine hot and slowly pour it in while keeping the rpm up with
> > my hand on the throttle linkages. You don't want it to stall.
> >
> > This method works excellently and makes them clean like new inside. I
> > have opened them up after. I use that as a prep before a head gasket
> > job too.
> >
> > I have been told by lots of folks that a pint of water poured in the
> > same way will do the same job minus the smoke cloud. ATF does make one
> > serious cloud of smoke...
> >
> > If it isn't pinging or dieseling, then a good hard day wheeling with
> > some high rpm or a hard highway run will clean them out good too.
> >
> > Mike
> > 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
> > 88 Cherokee 235 BFG AT's
> >
> > William Oliveri wrote:
> > >
> > > Anyway to clean carbon build up? Is there any product available to do
> this?
> > >
> > > Thanks,
> > >
> > > Bill
> > >
> > > "Mike Romain" <romainm@sympatico.ca> wrote in message
> > > news:40044741.2F07BE69@sympatico.ca...
> > > > Very few gauges are accurate or will read the same on the same
engine.
> > > >
> > > > If they are all even, that's a good thing. Too high can mean carbon
> > > > buildup.
> > > >
> > > > Normally carbon isn't a problem until you start to get spark knock
or
> > > > ping or until it starts dieseling or running on after the key is
> turned
> > > > off.
> > > >
> > > > Mike
> > > > 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
> > > > 88 Cherokee 235 BFG AT's
> > > >
> > > > William Oliveri wrote:
> > > > >
> > > > > I just got a call from the shop where I took my jeep to have it
> > > diagnosised
> > > > > for engine "strength". The guy told me I have compression of 150
> psi
> > > per
> > > > > cylinder with no variance between each cylinder. I'm thinking
> Great.
> > > > > However, I looked up the specs in my FSM where they say I should
> have
> > > > > between 120 to 140 per cylinder.
> > > > >
> > > > > Can I have too much compression and what would cause that? Could
> the
> > > test
> > > > > be done incorrectly which would present a higher number than it
> really
> > > is?
> > > > >
> > > > > Thanks,
> > > > >
> > > > > Bill
>
>
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