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CJ8 carbon deposits?
I'm getting my CJ8 six cylinder in shape.
I recently replaced the spark plugs. Though old in age they have very few miles on them; they looked very good -- except for a lot of carbon-looking darkness away from the gap. I also shined a bright light into the cylinders where it appears VERY dark and carbon-like on the top of the pistons; like a deposit. This is probably due to the couple of hundred miles/year I've put on the Scrambler for the past few years; along with the old, never quite right stock carburator (now replaced with a Weber). Engine seems in great shape and repeated oil analysis confirm that there is very little wear over the 51,000 miles. Question is -- is there some way without dismantling the engine to get rid of these deposits? Is there something I can put in the gas that will remove them safely?? I've been told this is a common issue in the marine industry, but don't know what to use. If there is anything that will work?? Any suggestions, please ..... Thanks. Mike Michael Pomeroy |
Re: CJ8 carbon deposits?
pomerom@yahoo.com did pass the time by typing:
> I'm getting my CJ8 six cylinder in shape. > > I recently replaced the spark plugs. Though old in age they have very > few miles on them; they looked very good -- except for a lot of > carbon-looking darkness away from the gap. Yep.. too rich. (a little black is ok, flakes of black indicate way rich conditions or plugs that are too cool) > Question is -- is there some way without dismantling the engine to get > rid of these deposits? Is there something I can put in the gas that > will remove them safely?? safely is a matter of conjecture and depends on the amount of carbon that has built up. Some old tricks involve slowly dribbling water down the carb. That breaks up the carbon. Some use ATF fluid as well and that will produce a HUGE black cloud. Others have mentioned SeaFoam, but I though that was only for cleaning the oil galleys. -- DougW |
Re: CJ8 carbon deposits?
pomerom@yahoo.com did pass the time by typing:
> I'm getting my CJ8 six cylinder in shape. > > I recently replaced the spark plugs. Though old in age they have very > few miles on them; they looked very good -- except for a lot of > carbon-looking darkness away from the gap. Yep.. too rich. (a little black is ok, flakes of black indicate way rich conditions or plugs that are too cool) > Question is -- is there some way without dismantling the engine to get > rid of these deposits? Is there something I can put in the gas that > will remove them safely?? safely is a matter of conjecture and depends on the amount of carbon that has built up. Some old tricks involve slowly dribbling water down the carb. That breaks up the carbon. Some use ATF fluid as well and that will produce a HUGE black cloud. Others have mentioned SeaFoam, but I though that was only for cleaning the oil galleys. -- DougW |
Re: CJ8 carbon deposits?
I worked in garages for years and they always used a pint of ATF to
decarbon an engine. I did it to my CJ before a head gasket job and it looked like new with a couple big loose chunks of carbon still in a couple cylinders. You heat up the engine and slowly pour the pint of ATF down the carb while keeping your hand on the throttle to keep it running. Pour too fast and it will stall out, you don't want that. Then when it's finished shut it down for 10 minutes or so. Start it back up and rev it good and you are good to go. It makes one massive cloud of smoke, but does a sweet job. I have been told that a pint of water will do the same, but have no first hand experience on that. Mike 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00 88 Cherokee 235 BFG AT's pomerom@yahoo.com wrote: > > I'm getting my CJ8 six cylinder in shape. > > I recently replaced the spark plugs. Though old in age they have very > few miles on them; they looked very good -- except for a lot of > carbon-looking darkness away from the gap. > > I also shined a bright light into the cylinders where it appears VERY > dark and carbon-like on the top of the pistons; like a deposit. > > This is probably due to the couple of hundred miles/year I've put on > the Scrambler for the past few years; along with the old, never quite > right stock carburator (now replaced with a Weber). > > Engine seems in great shape and repeated oil analysis confirm that > there is very little wear over the 51,000 miles. > > Question is -- is there some way without dismantling the engine to get > rid of these deposits? Is there something I can put in the gas that > will remove them safely?? > > I've been told this is a common issue in the marine industry, but > don't know what to use. If there is anything that will work?? > > Any suggestions, please ..... > > Thanks. > > Mike > Michael Pomeroy |
Re: CJ8 carbon deposits?
I worked in garages for years and they always used a pint of ATF to
decarbon an engine. I did it to my CJ before a head gasket job and it looked like new with a couple big loose chunks of carbon still in a couple cylinders. You heat up the engine and slowly pour the pint of ATF down the carb while keeping your hand on the throttle to keep it running. Pour too fast and it will stall out, you don't want that. Then when it's finished shut it down for 10 minutes or so. Start it back up and rev it good and you are good to go. It makes one massive cloud of smoke, but does a sweet job. I have been told that a pint of water will do the same, but have no first hand experience on that. Mike 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00 88 Cherokee 235 BFG AT's pomerom@yahoo.com wrote: > > I'm getting my CJ8 six cylinder in shape. > > I recently replaced the spark plugs. Though old in age they have very > few miles on them; they looked very good -- except for a lot of > carbon-looking darkness away from the gap. > > I also shined a bright light into the cylinders where it appears VERY > dark and carbon-like on the top of the pistons; like a deposit. > > This is probably due to the couple of hundred miles/year I've put on > the Scrambler for the past few years; along with the old, never quite > right stock carburator (now replaced with a Weber). > > Engine seems in great shape and repeated oil analysis confirm that > there is very little wear over the 51,000 miles. > > Question is -- is there some way without dismantling the engine to get > rid of these deposits? Is there something I can put in the gas that > will remove them safely?? > > I've been told this is a common issue in the marine industry, but > don't know what to use. If there is anything that will work?? > > Any suggestions, please ..... > > Thanks. > > Mike > Michael Pomeroy |
Re: CJ8 carbon deposits?
No Kiddin' Right Mike!? I'm kinda dealing with the same thing. So what
you're saying is to drizzle a pint of ATF straight down the throat of the carb. Obviously, not trying to stall the engine. Once the last drop is in, shut it down 10 min's. Fire it up and give it a rev. Sounds pretty cool. I'd love to try it just to get my neighbor reaction! They used to shake their heads at my old nissan that burned a quart of oil every tanks of gas. -- Thanks Always !!! Paul '75 CJ5 258 Vail, CO. "Mike Romain" <romainm@sympatico.ca> wrote in message news:3F7B7EAD.9B90CB48@sympatico.ca... > I worked in garages for years and they always used a pint of ATF to > decarbon an engine. > > I did it to my CJ before a head gasket job and it looked like new with a > couple big loose chunks of carbon still in a couple cylinders. > > You heat up the engine and slowly pour the pint of ATF down the carb > while keeping your hand on the throttle to keep it running. Pour too > fast and it will stall out, you don't want that. > > Then when it's finished shut it down for 10 minutes or so. Start it > back up and rev it good and you are good to go. > > It makes one massive cloud of smoke, but does a sweet job. > > I have been told that a pint of water will do the same, but have no > first hand experience on that. > > Mike > 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00 > 88 Cherokee 235 BFG AT's > > pomerom@yahoo.com wrote: > > > > I'm getting my CJ8 six cylinder in shape. > > > > I recently replaced the spark plugs. Though old in age they have very > > few miles on them; they looked very good -- except for a lot of > > carbon-looking darkness away from the gap. > > > > I also shined a bright light into the cylinders where it appears VERY > > dark and carbon-like on the top of the pistons; like a deposit. > > > > This is probably due to the couple of hundred miles/year I've put on > > the Scrambler for the past few years; along with the old, never quite > > right stock carburator (now replaced with a Weber). > > > > Engine seems in great shape and repeated oil analysis confirm that > > there is very little wear over the 51,000 miles. > > > > Question is -- is there some way without dismantling the engine to get > > rid of these deposits? Is there something I can put in the gas that > > will remove them safely?? > > > > I've been told this is a common issue in the marine industry, but > > don't know what to use. If there is anything that will work?? > > > > Any suggestions, please ..... > > > > Thanks. > > > > Mike > > Michael Pomeroy |
Re: CJ8 carbon deposits?
No Kiddin' Right Mike!? I'm kinda dealing with the same thing. So what
you're saying is to drizzle a pint of ATF straight down the throat of the carb. Obviously, not trying to stall the engine. Once the last drop is in, shut it down 10 min's. Fire it up and give it a rev. Sounds pretty cool. I'd love to try it just to get my neighbor reaction! They used to shake their heads at my old nissan that burned a quart of oil every tanks of gas. -- Thanks Always !!! Paul '75 CJ5 258 Vail, CO. "Mike Romain" <romainm@sympatico.ca> wrote in message news:3F7B7EAD.9B90CB48@sympatico.ca... > I worked in garages for years and they always used a pint of ATF to > decarbon an engine. > > I did it to my CJ before a head gasket job and it looked like new with a > couple big loose chunks of carbon still in a couple cylinders. > > You heat up the engine and slowly pour the pint of ATF down the carb > while keeping your hand on the throttle to keep it running. Pour too > fast and it will stall out, you don't want that. > > Then when it's finished shut it down for 10 minutes or so. Start it > back up and rev it good and you are good to go. > > It makes one massive cloud of smoke, but does a sweet job. > > I have been told that a pint of water will do the same, but have no > first hand experience on that. > > Mike > 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00 > 88 Cherokee 235 BFG AT's > > pomerom@yahoo.com wrote: > > > > I'm getting my CJ8 six cylinder in shape. > > > > I recently replaced the spark plugs. Though old in age they have very > > few miles on them; they looked very good -- except for a lot of > > carbon-looking darkness away from the gap. > > > > I also shined a bright light into the cylinders where it appears VERY > > dark and carbon-like on the top of the pistons; like a deposit. > > > > This is probably due to the couple of hundred miles/year I've put on > > the Scrambler for the past few years; along with the old, never quite > > right stock carburator (now replaced with a Weber). > > > > Engine seems in great shape and repeated oil analysis confirm that > > there is very little wear over the 51,000 miles. > > > > Question is -- is there some way without dismantling the engine to get > > rid of these deposits? Is there something I can put in the gas that > > will remove them safely?? > > > > I've been told this is a common issue in the marine industry, but > > don't know what to use. If there is anything that will work?? > > > > Any suggestions, please ..... > > > > Thanks. > > > > Mike > > Michael Pomeroy |
Re: CJ8 carbon deposits?
Paul, ATF will work but it'll create a dense white cloud of smoke that your
neighbors will hate you for, or call the cops or fire department on. More commonly used for that purpose is plain old water. It works great and it doesn't produce huge clouds of smoke. Do it the same way as Mike described for ATF, it's what every mechanic I've ever seen do this uses and recommends. I've done this several times and it's a highly effective way to get rid of carbon deposits. Make darned sure to maintain control of the water and feed it in very slowly, you don't want to accidentally dump the entire container into the intake and cause hydrolock. I feed in 12-14 oz. of water and spend at least a minute to two minutes doing it. Jerry -- Jerry Bransford To email, remove 'me' from my email address KC6TAY, PP-ASEL See the Geezer Jeep at http://members.cox.net/jerrypb/ "Paul Brogren" <pibrogren@msn.com> wrote in message news:blg2pn$bmg27$1@ID-190695.news.uni-berlin.de... > No Kiddin' Right Mike!? I'm kinda dealing with the same thing. So what > you're saying is to drizzle a pint of ATF straight down the throat of the > carb. Obviously, not trying to stall the engine. Once the last drop is in, > shut it down 10 min's. Fire it up and give it a rev. Sounds pretty cool. > I'd love to try it just to get my neighbor reaction! They used to shake > their heads at my old nissan that burned a quart of oil every tanks of gas. > > -- > Thanks Always !!! > Paul '75 CJ5 258 > Vail, CO. > "Mike Romain" <romainm@sympatico.ca> wrote in message > news:3F7B7EAD.9B90CB48@sympatico.ca... > > I worked in garages for years and they always used a pint of ATF to > > decarbon an engine. > > > > I did it to my CJ before a head gasket job and it looked like new with a > > couple big loose chunks of carbon still in a couple cylinders. > > > > You heat up the engine and slowly pour the pint of ATF down the carb > > while keeping your hand on the throttle to keep it running. Pour too > > fast and it will stall out, you don't want that. > > > > Then when it's finished shut it down for 10 minutes or so. Start it > > back up and rev it good and you are good to go. > > > > It makes one massive cloud of smoke, but does a sweet job. > > > > I have been told that a pint of water will do the same, but have no > > first hand experience on that. > > > > Mike > > 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00 > > 88 Cherokee 235 BFG AT's > > > > pomerom@yahoo.com wrote: > > > > > > I'm getting my CJ8 six cylinder in shape. > > > > > > I recently replaced the spark plugs. Though old in age they have very > > > few miles on them; they looked very good -- except for a lot of > > > carbon-looking darkness away from the gap. > > > > > > I also shined a bright light into the cylinders where it appears VERY > > > dark and carbon-like on the top of the pistons; like a deposit. > > > > > > This is probably due to the couple of hundred miles/year I've put on > > > the Scrambler for the past few years; along with the old, never quite > > > right stock carburator (now replaced with a Weber). > > > > > > Engine seems in great shape and repeated oil analysis confirm that > > > there is very little wear over the 51,000 miles. > > > > > > Question is -- is there some way without dismantling the engine to get > > > rid of these deposits? Is there something I can put in the gas that > > > will remove them safely?? > > > > > > I've been told this is a common issue in the marine industry, but > > > don't know what to use. If there is anything that will work?? > > > > > > Any suggestions, please ..... > > > > > > Thanks. > > > > > > Mike > > > Michael Pomeroy > > |
Re: CJ8 carbon deposits?
Paul, ATF will work but it'll create a dense white cloud of smoke that your
neighbors will hate you for, or call the cops or fire department on. More commonly used for that purpose is plain old water. It works great and it doesn't produce huge clouds of smoke. Do it the same way as Mike described for ATF, it's what every mechanic I've ever seen do this uses and recommends. I've done this several times and it's a highly effective way to get rid of carbon deposits. Make darned sure to maintain control of the water and feed it in very slowly, you don't want to accidentally dump the entire container into the intake and cause hydrolock. I feed in 12-14 oz. of water and spend at least a minute to two minutes doing it. Jerry -- Jerry Bransford To email, remove 'me' from my email address KC6TAY, PP-ASEL See the Geezer Jeep at http://members.cox.net/jerrypb/ "Paul Brogren" <pibrogren@msn.com> wrote in message news:blg2pn$bmg27$1@ID-190695.news.uni-berlin.de... > No Kiddin' Right Mike!? I'm kinda dealing with the same thing. So what > you're saying is to drizzle a pint of ATF straight down the throat of the > carb. Obviously, not trying to stall the engine. Once the last drop is in, > shut it down 10 min's. Fire it up and give it a rev. Sounds pretty cool. > I'd love to try it just to get my neighbor reaction! They used to shake > their heads at my old nissan that burned a quart of oil every tanks of gas. > > -- > Thanks Always !!! > Paul '75 CJ5 258 > Vail, CO. > "Mike Romain" <romainm@sympatico.ca> wrote in message > news:3F7B7EAD.9B90CB48@sympatico.ca... > > I worked in garages for years and they always used a pint of ATF to > > decarbon an engine. > > > > I did it to my CJ before a head gasket job and it looked like new with a > > couple big loose chunks of carbon still in a couple cylinders. > > > > You heat up the engine and slowly pour the pint of ATF down the carb > > while keeping your hand on the throttle to keep it running. Pour too > > fast and it will stall out, you don't want that. > > > > Then when it's finished shut it down for 10 minutes or so. Start it > > back up and rev it good and you are good to go. > > > > It makes one massive cloud of smoke, but does a sweet job. > > > > I have been told that a pint of water will do the same, but have no > > first hand experience on that. > > > > Mike > > 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00 > > 88 Cherokee 235 BFG AT's > > > > pomerom@yahoo.com wrote: > > > > > > I'm getting my CJ8 six cylinder in shape. > > > > > > I recently replaced the spark plugs. Though old in age they have very > > > few miles on them; they looked very good -- except for a lot of > > > carbon-looking darkness away from the gap. > > > > > > I also shined a bright light into the cylinders where it appears VERY > > > dark and carbon-like on the top of the pistons; like a deposit. > > > > > > This is probably due to the couple of hundred miles/year I've put on > > > the Scrambler for the past few years; along with the old, never quite > > > right stock carburator (now replaced with a Weber). > > > > > > Engine seems in great shape and repeated oil analysis confirm that > > > there is very little wear over the 51,000 miles. > > > > > > Question is -- is there some way without dismantling the engine to get > > > rid of these deposits? Is there something I can put in the gas that > > > will remove them safely?? > > > > > > I've been told this is a common issue in the marine industry, but > > > don't know what to use. If there is anything that will work?? > > > > > > Any suggestions, please ..... > > > > > > Thanks. > > > > > > Mike > > > Michael Pomeroy > > |
Re: CJ8 carbon deposits?
"Mike Romain" <romainm@sympatico.ca> wrote in message news:3F7B7EAD.9B90CB48@sympatico.ca... > I worked in garages for years and they always used a pint of ATF to > decarbon an engine. Old timer in our tire shop used Marvel Mystery Oil... __ Steve .. |
Re: CJ8 carbon deposits?
"Mike Romain" <romainm@sympatico.ca> wrote in message news:3F7B7EAD.9B90CB48@sympatico.ca... > I worked in garages for years and they always used a pint of ATF to > decarbon an engine. Old timer in our tire shop used Marvel Mystery Oil... __ Steve .. |
Re: CJ8 carbon deposits?
I use water myself, but I tried ATF once here while back. Both seem
to work but the smoke cloud put out by the ATF would make a mosquito fogger proud! Best evidence I've got of it working was this summer when I changed the plugs - pulled a couple and they had a bit of carbon on the body close to the threads. Put them back in, fired it up and ran about a quart of water thru it - I cheat and use a spray bottle to squirt it in so that I get a steady stream of droplets instead of a big splash - and when I pulled the plugs everything on the end looked like new. On Thu, 2 Oct 2003 01:26:05 UTC Mike Romain <romainm@sympatico.ca> wrote: > I worked in garages for years and they always used a pint of ATF to > decarbon an engine. > > I did it to my CJ before a head gasket job and it looked like new with a > couple big loose chunks of carbon still in a couple cylinders. > > You heat up the engine and slowly pour the pint of ATF down the carb > while keeping your hand on the throttle to keep it running. Pour too > fast and it will stall out, you don't want that. > > Then when it's finished shut it down for 10 minutes or so. Start it > back up and rev it good and you are good to go. > > It makes one massive cloud of smoke, but does a sweet job. > > I have been told that a pint of water will do the same, but have no > first hand experience on that. > > Mike > 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00 > 88 Cherokee 235 BFG AT's > > pomerom@yahoo.com wrote: > > > > I'm getting my CJ8 six cylinder in shape. > > > > I recently replaced the spark plugs. Though old in age they have very > > few miles on them; they looked very good -- except for a lot of > > carbon-looking darkness away from the gap. > > > > I also shined a bright light into the cylinders where it appears VERY > > dark and carbon-like on the top of the pistons; like a deposit. > > > > This is probably due to the couple of hundred miles/year I've put on > > the Scrambler for the past few years; along with the old, never quite > > right stock carburator (now replaced with a Weber). > > > > Engine seems in great shape and repeated oil analysis confirm that > > there is very little wear over the 51,000 miles. > > > > Question is -- is there some way without dismantling the engine to get > > rid of these deposits? Is there something I can put in the gas that > > will remove them safely?? > > > > I've been told this is a common issue in the marine industry, but > > don't know what to use. If there is anything that will work?? > > > > Any suggestions, please ..... > > > > Thanks. > > > > Mike > > Michael Pomeroy -- Will Honea |
Re: CJ8 carbon deposits?
I use water myself, but I tried ATF once here while back. Both seem
to work but the smoke cloud put out by the ATF would make a mosquito fogger proud! Best evidence I've got of it working was this summer when I changed the plugs - pulled a couple and they had a bit of carbon on the body close to the threads. Put them back in, fired it up and ran about a quart of water thru it - I cheat and use a spray bottle to squirt it in so that I get a steady stream of droplets instead of a big splash - and when I pulled the plugs everything on the end looked like new. On Thu, 2 Oct 2003 01:26:05 UTC Mike Romain <romainm@sympatico.ca> wrote: > I worked in garages for years and they always used a pint of ATF to > decarbon an engine. > > I did it to my CJ before a head gasket job and it looked like new with a > couple big loose chunks of carbon still in a couple cylinders. > > You heat up the engine and slowly pour the pint of ATF down the carb > while keeping your hand on the throttle to keep it running. Pour too > fast and it will stall out, you don't want that. > > Then when it's finished shut it down for 10 minutes or so. Start it > back up and rev it good and you are good to go. > > It makes one massive cloud of smoke, but does a sweet job. > > I have been told that a pint of water will do the same, but have no > first hand experience on that. > > Mike > 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00 > 88 Cherokee 235 BFG AT's > > pomerom@yahoo.com wrote: > > > > I'm getting my CJ8 six cylinder in shape. > > > > I recently replaced the spark plugs. Though old in age they have very > > few miles on them; they looked very good -- except for a lot of > > carbon-looking darkness away from the gap. > > > > I also shined a bright light into the cylinders where it appears VERY > > dark and carbon-like on the top of the pistons; like a deposit. > > > > This is probably due to the couple of hundred miles/year I've put on > > the Scrambler for the past few years; along with the old, never quite > > right stock carburator (now replaced with a Weber). > > > > Engine seems in great shape and repeated oil analysis confirm that > > there is very little wear over the 51,000 miles. > > > > Question is -- is there some way without dismantling the engine to get > > rid of these deposits? Is there something I can put in the gas that > > will remove them safely?? > > > > I've been told this is a common issue in the marine industry, but > > don't know what to use. If there is anything that will work?? > > > > Any suggestions, please ..... > > > > Thanks. > > > > Mike > > Michael Pomeroy -- Will Honea |
Re: CJ8 carbon deposits?
When I say 'one massive' cloud of smoke, I am not exaggerating. LOL!
Mike Paul Brogren wrote: > > I'm gonna try the water spray tonight. I didn't realize that the amount of > ATF smoke could be as bad as you say. Good thing I didn't try it. My condo > neighbors would be quite upset for sure. > Thanks Always, > Paul > > "Will Honea" <will@codenet.net> wrote in message > news:JxX2tWiP5BNp-pn2-qq2jcfoBT950@anon.none.net... > > I use water myself, but I tried ATF once here while back. Both seem > > to work but the smoke cloud put out by the ATF would make a mosquito > > fogger proud! Best evidence I've got of it working was this summer > > when I changed the plugs - pulled a couple and they had a bit of > > carbon on the body close to the threads. Put them back in, fired it > > up and ran about a quart of water thru it - I cheat and use a spray > > bottle to squirt it in so that I get a steady stream of droplets > > instead of a big splash - and when I pulled the plugs everything on > > the end looked like new. > > > > On Thu, 2 Oct 2003 01:26:05 UTC Mike Romain <romainm@sympatico.ca> > > wrote: > > > > > I worked in garages for years and they always used a pint of ATF to > > > decarbon an engine. > > > > > > I did it to my CJ before a head gasket job and it looked like new with a > > > couple big loose chunks of carbon still in a couple cylinders. > > > > > > You heat up the engine and slowly pour the pint of ATF down the carb > > > while keeping your hand on the throttle to keep it running. Pour too > > > fast and it will stall out, you don't want that. > > > > > > Then when it's finished shut it down for 10 minutes or so. Start it > > > back up and rev it good and you are good to go. > > > > > > It makes one massive cloud of smoke, but does a sweet job. > > > > > > I have been told that a pint of water will do the same, but have no > > > first hand experience on that. > > > > > > Mike > > > 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00 > > > 88 Cherokee 235 BFG AT's > > > > > > pomerom@yahoo.com wrote: > > > > > > > > I'm getting my CJ8 six cylinder in shape. > > > > > > > > I recently replaced the spark plugs. Though old in age they have very > > > > few miles on them; they looked very good -- except for a lot of > > > > carbon-looking darkness away from the gap. > > > > > > > > I also shined a bright light into the cylinders where it appears VERY > > > > dark and carbon-like on the top of the pistons; like a deposit. > > > > > > > > This is probably due to the couple of hundred miles/year I've put on > > > > the Scrambler for the past few years; along with the old, never quite > > > > right stock carburator (now replaced with a Weber). > > > > > > > > Engine seems in great shape and repeated oil analysis confirm that > > > > there is very little wear over the 51,000 miles. > > > > > > > > Question is -- is there some way without dismantling the engine to get > > > > rid of these deposits? Is there something I can put in the gas that > > > > will remove them safely?? > > > > > > > > I've been told this is a common issue in the marine industry, but > > > > don't know what to use. If there is anything that will work?? > > > > > > > > Any suggestions, please ..... > > > > > > > > Thanks. > > > > > > > > Mike > > > > Michael Pomeroy > > > > > > -- > > Will Honea |
Re: CJ8 carbon deposits?
When I say 'one massive' cloud of smoke, I am not exaggerating. LOL!
Mike Paul Brogren wrote: > > I'm gonna try the water spray tonight. I didn't realize that the amount of > ATF smoke could be as bad as you say. Good thing I didn't try it. My condo > neighbors would be quite upset for sure. > Thanks Always, > Paul > > "Will Honea" <will@codenet.net> wrote in message > news:JxX2tWiP5BNp-pn2-qq2jcfoBT950@anon.none.net... > > I use water myself, but I tried ATF once here while back. Both seem > > to work but the smoke cloud put out by the ATF would make a mosquito > > fogger proud! Best evidence I've got of it working was this summer > > when I changed the plugs - pulled a couple and they had a bit of > > carbon on the body close to the threads. Put them back in, fired it > > up and ran about a quart of water thru it - I cheat and use a spray > > bottle to squirt it in so that I get a steady stream of droplets > > instead of a big splash - and when I pulled the plugs everything on > > the end looked like new. > > > > On Thu, 2 Oct 2003 01:26:05 UTC Mike Romain <romainm@sympatico.ca> > > wrote: > > > > > I worked in garages for years and they always used a pint of ATF to > > > decarbon an engine. > > > > > > I did it to my CJ before a head gasket job and it looked like new with a > > > couple big loose chunks of carbon still in a couple cylinders. > > > > > > You heat up the engine and slowly pour the pint of ATF down the carb > > > while keeping your hand on the throttle to keep it running. Pour too > > > fast and it will stall out, you don't want that. > > > > > > Then when it's finished shut it down for 10 minutes or so. Start it > > > back up and rev it good and you are good to go. > > > > > > It makes one massive cloud of smoke, but does a sweet job. > > > > > > I have been told that a pint of water will do the same, but have no > > > first hand experience on that. > > > > > > Mike > > > 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00 > > > 88 Cherokee 235 BFG AT's > > > > > > pomerom@yahoo.com wrote: > > > > > > > > I'm getting my CJ8 six cylinder in shape. > > > > > > > > I recently replaced the spark plugs. Though old in age they have very > > > > few miles on them; they looked very good -- except for a lot of > > > > carbon-looking darkness away from the gap. > > > > > > > > I also shined a bright light into the cylinders where it appears VERY > > > > dark and carbon-like on the top of the pistons; like a deposit. > > > > > > > > This is probably due to the couple of hundred miles/year I've put on > > > > the Scrambler for the past few years; along with the old, never quite > > > > right stock carburator (now replaced with a Weber). > > > > > > > > Engine seems in great shape and repeated oil analysis confirm that > > > > there is very little wear over the 51,000 miles. > > > > > > > > Question is -- is there some way without dismantling the engine to get > > > > rid of these deposits? Is there something I can put in the gas that > > > > will remove them safely?? > > > > > > > > I've been told this is a common issue in the marine industry, but > > > > don't know what to use. If there is anything that will work?? > > > > > > > > Any suggestions, please ..... > > > > > > > > Thanks. > > > > > > > > Mike > > > > Michael Pomeroy > > > > > > -- > > Will Honea |
Re: CJ8 carbon deposits?
If you have a hand throttle, that will help. Or you can shove something
into the linkage to keep your throttle open a little. The water will bog your engine down a little and a little extra throttle helps keep it running. -- Jim 98 TJ SE 90 SJ GW http://www.delawareja.com/gallery/JDJeep98 " Paul Brogren" <pibrogren@msn.com> wrote in message news:blhgtm$bs5r2$1@ID-190695.news.uni-berlin.de... > I'm gonna try the water spray tonight. I didn't realize that the amount of > ATF smoke could be as bad as you say. Good thing I didn't try it. My condo > neighbors would be quite upset for sure. > Thanks Always, > Paul > > > "Will Honea" <will@codenet.net> wrote in message > news:JxX2tWiP5BNp-pn2-qq2jcfoBT950@anon.none.net... > > I use water myself, but I tried ATF once here while back. Both seem > > to work but the smoke cloud put out by the ATF would make a mosquito > > fogger proud! Best evidence I've got of it working was this summer > > when I changed the plugs - pulled a couple and they had a bit of > > carbon on the body close to the threads. Put them back in, fired it > > up and ran about a quart of water thru it - I cheat and use a spray > > bottle to squirt it in so that I get a steady stream of droplets > > instead of a big splash - and when I pulled the plugs everything on > > the end looked like new. > > > > On Thu, 2 Oct 2003 01:26:05 UTC Mike Romain <romainm@sympatico.ca> > > wrote: > > > > > I worked in garages for years and they always used a pint of ATF to > > > decarbon an engine. > > > > > > I did it to my CJ before a head gasket job and it looked like new with a > > > couple big loose chunks of carbon still in a couple cylinders. > > > > > > You heat up the engine and slowly pour the pint of ATF down the carb > > > while keeping your hand on the throttle to keep it running. Pour too > > > fast and it will stall out, you don't want that. > > > > > > Then when it's finished shut it down for 10 minutes or so. Start it > > > back up and rev it good and you are good to go. > > > > > > It makes one massive cloud of smoke, but does a sweet job. > > > > > > I have been told that a pint of water will do the same, but have no > > > first hand experience on that. > > > > > > Mike > > > 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00 > > > 88 Cherokee 235 BFG AT's > > > > > > pomerom@yahoo.com wrote: > > > > > > > > I'm getting my CJ8 six cylinder in shape. > > > > > > > > I recently replaced the spark plugs. Though old in age they have very > > > > few miles on them; they looked very good -- except for a lot of > > > > carbon-looking darkness away from the gap. > > > > > > > > I also shined a bright light into the cylinders where it appears VERY > > > > dark and carbon-like on the top of the pistons; like a deposit. > > > > > > > > This is probably due to the couple of hundred miles/year I've put on > > > > the Scrambler for the past few years; along with the old, never quite > > > > right stock carburator (now replaced with a Weber). > > > > > > > > Engine seems in great shape and repeated oil analysis confirm that > > > > there is very little wear over the 51,000 miles. > > > > > > > > Question is -- is there some way without dismantling the engine to get > > > > rid of these deposits? Is there something I can put in the gas that > > > > will remove them safely?? > > > > > > > > I've been told this is a common issue in the marine industry, but > > > > don't know what to use. If there is anything that will work?? > > > > > > > > Any suggestions, please ..... > > > > > > > > Thanks. > > > > > > > > Mike > > > > Michael Pomeroy > > > > > > -- > > Will Honea > > |
Re: CJ8 carbon deposits?
If you have a hand throttle, that will help. Or you can shove something
into the linkage to keep your throttle open a little. The water will bog your engine down a little and a little extra throttle helps keep it running. -- Jim 98 TJ SE 90 SJ GW http://www.delawareja.com/gallery/JDJeep98 " Paul Brogren" <pibrogren@msn.com> wrote in message news:blhgtm$bs5r2$1@ID-190695.news.uni-berlin.de... > I'm gonna try the water spray tonight. I didn't realize that the amount of > ATF smoke could be as bad as you say. Good thing I didn't try it. My condo > neighbors would be quite upset for sure. > Thanks Always, > Paul > > > "Will Honea" <will@codenet.net> wrote in message > news:JxX2tWiP5BNp-pn2-qq2jcfoBT950@anon.none.net... > > I use water myself, but I tried ATF once here while back. Both seem > > to work but the smoke cloud put out by the ATF would make a mosquito > > fogger proud! Best evidence I've got of it working was this summer > > when I changed the plugs - pulled a couple and they had a bit of > > carbon on the body close to the threads. Put them back in, fired it > > up and ran about a quart of water thru it - I cheat and use a spray > > bottle to squirt it in so that I get a steady stream of droplets > > instead of a big splash - and when I pulled the plugs everything on > > the end looked like new. > > > > On Thu, 2 Oct 2003 01:26:05 UTC Mike Romain <romainm@sympatico.ca> > > wrote: > > > > > I worked in garages for years and they always used a pint of ATF to > > > decarbon an engine. > > > > > > I did it to my CJ before a head gasket job and it looked like new with a > > > couple big loose chunks of carbon still in a couple cylinders. > > > > > > You heat up the engine and slowly pour the pint of ATF down the carb > > > while keeping your hand on the throttle to keep it running. Pour too > > > fast and it will stall out, you don't want that. > > > > > > Then when it's finished shut it down for 10 minutes or so. Start it > > > back up and rev it good and you are good to go. > > > > > > It makes one massive cloud of smoke, but does a sweet job. > > > > > > I have been told that a pint of water will do the same, but have no > > > first hand experience on that. > > > > > > Mike > > > 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00 > > > 88 Cherokee 235 BFG AT's > > > > > > pomerom@yahoo.com wrote: > > > > > > > > I'm getting my CJ8 six cylinder in shape. > > > > > > > > I recently replaced the spark plugs. Though old in age they have very > > > > few miles on them; they looked very good -- except for a lot of > > > > carbon-looking darkness away from the gap. > > > > > > > > I also shined a bright light into the cylinders where it appears VERY > > > > dark and carbon-like on the top of the pistons; like a deposit. > > > > > > > > This is probably due to the couple of hundred miles/year I've put on > > > > the Scrambler for the past few years; along with the old, never quite > > > > right stock carburator (now replaced with a Weber). > > > > > > > > Engine seems in great shape and repeated oil analysis confirm that > > > > there is very little wear over the 51,000 miles. > > > > > > > > Question is -- is there some way without dismantling the engine to get > > > > rid of these deposits? Is there something I can put in the gas that > > > > will remove them safely?? > > > > > > > > I've been told this is a common issue in the marine industry, but > > > > don't know what to use. If there is anything that will work?? > > > > > > > > Any suggestions, please ..... > > > > > > > > Thanks. > > > > > > > > Mike > > > > Michael Pomeroy > > > > > > -- > > Will Honea > > |
Re: CJ8 carbon deposits?
I'm gonna try the water spray tonight. I didn't realize that the amount of
ATF smoke could be as bad as you say. Good thing I didn't try it. My condo neighbors would be quite upset for sure. Thanks Always, Paul "Will Honea" <will@codenet.net> wrote in message news:JxX2tWiP5BNp-pn2-qq2jcfoBT950@anon.none.net... > I use water myself, but I tried ATF once here while back. Both seem > to work but the smoke cloud put out by the ATF would make a mosquito > fogger proud! Best evidence I've got of it working was this summer > when I changed the plugs - pulled a couple and they had a bit of > carbon on the body close to the threads. Put them back in, fired it > up and ran about a quart of water thru it - I cheat and use a spray > bottle to squirt it in so that I get a steady stream of droplets > instead of a big splash - and when I pulled the plugs everything on > the end looked like new. > > On Thu, 2 Oct 2003 01:26:05 UTC Mike Romain <romainm@sympatico.ca> > wrote: > > > I worked in garages for years and they always used a pint of ATF to > > decarbon an engine. > > > > I did it to my CJ before a head gasket job and it looked like new with a > > couple big loose chunks of carbon still in a couple cylinders. > > > > You heat up the engine and slowly pour the pint of ATF down the carb > > while keeping your hand on the throttle to keep it running. Pour too > > fast and it will stall out, you don't want that. > > > > Then when it's finished shut it down for 10 minutes or so. Start it > > back up and rev it good and you are good to go. > > > > It makes one massive cloud of smoke, but does a sweet job. > > > > I have been told that a pint of water will do the same, but have no > > first hand experience on that. > > > > Mike > > 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00 > > 88 Cherokee 235 BFG AT's > > > > pomerom@yahoo.com wrote: > > > > > > I'm getting my CJ8 six cylinder in shape. > > > > > > I recently replaced the spark plugs. Though old in age they have very > > > few miles on them; they looked very good -- except for a lot of > > > carbon-looking darkness away from the gap. > > > > > > I also shined a bright light into the cylinders where it appears VERY > > > dark and carbon-like on the top of the pistons; like a deposit. > > > > > > This is probably due to the couple of hundred miles/year I've put on > > > the Scrambler for the past few years; along with the old, never quite > > > right stock carburator (now replaced with a Weber). > > > > > > Engine seems in great shape and repeated oil analysis confirm that > > > there is very little wear over the 51,000 miles. > > > > > > Question is -- is there some way without dismantling the engine to get > > > rid of these deposits? Is there something I can put in the gas that > > > will remove them safely?? > > > > > > I've been told this is a common issue in the marine industry, but > > > don't know what to use. If there is anything that will work?? > > > > > > Any suggestions, please ..... > > > > > > Thanks. > > > > > > Mike > > > Michael Pomeroy > > > -- > Will Honea |
Re: CJ8 carbon deposits?
I'm gonna try the water spray tonight. I didn't realize that the amount of
ATF smoke could be as bad as you say. Good thing I didn't try it. My condo neighbors would be quite upset for sure. Thanks Always, Paul "Will Honea" <will@codenet.net> wrote in message news:JxX2tWiP5BNp-pn2-qq2jcfoBT950@anon.none.net... > I use water myself, but I tried ATF once here while back. Both seem > to work but the smoke cloud put out by the ATF would make a mosquito > fogger proud! Best evidence I've got of it working was this summer > when I changed the plugs - pulled a couple and they had a bit of > carbon on the body close to the threads. Put them back in, fired it > up and ran about a quart of water thru it - I cheat and use a spray > bottle to squirt it in so that I get a steady stream of droplets > instead of a big splash - and when I pulled the plugs everything on > the end looked like new. > > On Thu, 2 Oct 2003 01:26:05 UTC Mike Romain <romainm@sympatico.ca> > wrote: > > > I worked in garages for years and they always used a pint of ATF to > > decarbon an engine. > > > > I did it to my CJ before a head gasket job and it looked like new with a > > couple big loose chunks of carbon still in a couple cylinders. > > > > You heat up the engine and slowly pour the pint of ATF down the carb > > while keeping your hand on the throttle to keep it running. Pour too > > fast and it will stall out, you don't want that. > > > > Then when it's finished shut it down for 10 minutes or so. Start it > > back up and rev it good and you are good to go. > > > > It makes one massive cloud of smoke, but does a sweet job. > > > > I have been told that a pint of water will do the same, but have no > > first hand experience on that. > > > > Mike > > 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00 > > 88 Cherokee 235 BFG AT's > > > > pomerom@yahoo.com wrote: > > > > > > I'm getting my CJ8 six cylinder in shape. > > > > > > I recently replaced the spark plugs. Though old in age they have very > > > few miles on them; they looked very good -- except for a lot of > > > carbon-looking darkness away from the gap. > > > > > > I also shined a bright light into the cylinders where it appears VERY > > > dark and carbon-like on the top of the pistons; like a deposit. > > > > > > This is probably due to the couple of hundred miles/year I've put on > > > the Scrambler for the past few years; along with the old, never quite > > > right stock carburator (now replaced with a Weber). > > > > > > Engine seems in great shape and repeated oil analysis confirm that > > > there is very little wear over the 51,000 miles. > > > > > > Question is -- is there some way without dismantling the engine to get > > > rid of these deposits? Is there something I can put in the gas that > > > will remove them safely?? > > > > > > I've been told this is a common issue in the marine industry, but > > > don't know what to use. If there is anything that will work?? > > > > > > Any suggestions, please ..... > > > > > > Thanks. > > > > > > Mike > > > Michael Pomeroy > > > -- > Will Honea |
Re: CJ8 carbon deposits?
Any cat implications with ATF ? (other than the choking feline variety).
Dave Milne, Scotland '99 TJ 4.0 Sahara "Mike Romain" <romainm@sympatico.ca> wrote in message news:3F7C4A55.54B45C4D@sympatico.ca... : When I say 'one massive' cloud of smoke, I am not exaggerating. LOL! : : Mike : : Paul Brogren wrote: : > : > I'm gonna try the water spray tonight. I didn't realize that the amount of : > ATF smoke could be as bad as you say. Good thing I didn't try it. My condo : > neighbors would be quite upset for sure. : > Thanks Always, : > Paul : > : > "Will Honea" <will@codenet.net> wrote in message : > news:JxX2tWiP5BNp-pn2-qq2jcfoBT950@anon.none.net... : > > I use water myself, but I tried ATF once here while back. Both seem : > > to work but the smoke cloud put out by the ATF would make a mosquito : > > fogger proud! Best evidence I've got of it working was this summer : > > when I changed the plugs - pulled a couple and they had a bit of : > > carbon on the body close to the threads. Put them back in, fired it : > > up and ran about a quart of water thru it - I cheat and use a spray : > > bottle to squirt it in so that I get a steady stream of droplets : > > instead of a big splash - and when I pulled the plugs everything on : > > the end looked like new. : > > : > > On Thu, 2 Oct 2003 01:26:05 UTC Mike Romain <romainm@sympatico.ca> : > > wrote: : > > : > > > I worked in garages for years and they always used a pint of ATF to : > > > decarbon an engine. : > > > : > > > I did it to my CJ before a head gasket job and it looked like new with a : > > > couple big loose chunks of carbon still in a couple cylinders. : > > > : > > > You heat up the engine and slowly pour the pint of ATF down the carb : > > > while keeping your hand on the throttle to keep it running. Pour too : > > > fast and it will stall out, you don't want that. : > > > : > > > Then when it's finished shut it down for 10 minutes or so. Start it : > > > back up and rev it good and you are good to go. : > > > : > > > It makes one massive cloud of smoke, but does a sweet job. : > > > : > > > I have been told that a pint of water will do the same, but have no : > > > first hand experience on that. : > > > : > > > Mike : > > > 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00 : > > > 88 Cherokee 235 BFG AT's : > > > : > > > pomerom@yahoo.com wrote: : > > > > : > > > > I'm getting my CJ8 six cylinder in shape. : > > > > : > > > > I recently replaced the spark plugs. Though old in age they have very : > > > > few miles on them; they looked very good -- except for a lot of : > > > > carbon-looking darkness away from the gap. : > > > > : > > > > I also shined a bright light into the cylinders where it appears VERY : > > > > dark and carbon-like on the top of the pistons; like a deposit. : > > > > : > > > > This is probably due to the couple of hundred miles/year I've put on : > > > > the Scrambler for the past few years; along with the old, never quite : > > > > right stock carburator (now replaced with a Weber). : > > > > : > > > > Engine seems in great shape and repeated oil analysis confirm that : > > > > there is very little wear over the 51,000 miles. : > > > > : > > > > Question is -- is there some way without dismantling the engine to get : > > > > rid of these deposits? Is there something I can put in the gas that : > > > > will remove them safely?? : > > > > : > > > > I've been told this is a common issue in the marine industry, but : > > > > don't know what to use. If there is anything that will work?? : > > > > : > > > > Any suggestions, please ..... : > > > > : > > > > Thanks. : > > > > : > > > > Mike : > > > > Michael Pomeroy : > > : > > : > > -- : > > Will Honea |
Re: CJ8 carbon deposits?
Any cat implications with ATF ? (other than the choking feline variety).
Dave Milne, Scotland '99 TJ 4.0 Sahara "Mike Romain" <romainm@sympatico.ca> wrote in message news:3F7C4A55.54B45C4D@sympatico.ca... : When I say 'one massive' cloud of smoke, I am not exaggerating. LOL! : : Mike : : Paul Brogren wrote: : > : > I'm gonna try the water spray tonight. I didn't realize that the amount of : > ATF smoke could be as bad as you say. Good thing I didn't try it. My condo : > neighbors would be quite upset for sure. : > Thanks Always, : > Paul : > : > "Will Honea" <will@codenet.net> wrote in message : > news:JxX2tWiP5BNp-pn2-qq2jcfoBT950@anon.none.net... : > > I use water myself, but I tried ATF once here while back. Both seem : > > to work but the smoke cloud put out by the ATF would make a mosquito : > > fogger proud! Best evidence I've got of it working was this summer : > > when I changed the plugs - pulled a couple and they had a bit of : > > carbon on the body close to the threads. Put them back in, fired it : > > up and ran about a quart of water thru it - I cheat and use a spray : > > bottle to squirt it in so that I get a steady stream of droplets : > > instead of a big splash - and when I pulled the plugs everything on : > > the end looked like new. : > > : > > On Thu, 2 Oct 2003 01:26:05 UTC Mike Romain <romainm@sympatico.ca> : > > wrote: : > > : > > > I worked in garages for years and they always used a pint of ATF to : > > > decarbon an engine. : > > > : > > > I did it to my CJ before a head gasket job and it looked like new with a : > > > couple big loose chunks of carbon still in a couple cylinders. : > > > : > > > You heat up the engine and slowly pour the pint of ATF down the carb : > > > while keeping your hand on the throttle to keep it running. Pour too : > > > fast and it will stall out, you don't want that. : > > > : > > > Then when it's finished shut it down for 10 minutes or so. Start it : > > > back up and rev it good and you are good to go. : > > > : > > > It makes one massive cloud of smoke, but does a sweet job. : > > > : > > > I have been told that a pint of water will do the same, but have no : > > > first hand experience on that. : > > > : > > > Mike : > > > 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00 : > > > 88 Cherokee 235 BFG AT's : > > > : > > > pomerom@yahoo.com wrote: : > > > > : > > > > I'm getting my CJ8 six cylinder in shape. : > > > > : > > > > I recently replaced the spark plugs. Though old in age they have very : > > > > few miles on them; they looked very good -- except for a lot of : > > > > carbon-looking darkness away from the gap. : > > > > : > > > > I also shined a bright light into the cylinders where it appears VERY : > > > > dark and carbon-like on the top of the pistons; like a deposit. : > > > > : > > > > This is probably due to the couple of hundred miles/year I've put on : > > > > the Scrambler for the past few years; along with the old, never quite : > > > > right stock carburator (now replaced with a Weber). : > > > > : > > > > Engine seems in great shape and repeated oil analysis confirm that : > > > > there is very little wear over the 51,000 miles. : > > > > : > > > > Question is -- is there some way without dismantling the engine to get : > > > > rid of these deposits? Is there something I can put in the gas that : > > > > will remove them safely?? : > > > > : > > > > I've been told this is a common issue in the marine industry, but : > > > > don't know what to use. If there is anything that will work?? : > > > > : > > > > Any suggestions, please ..... : > > > > : > > > > Thanks. : > > > > : > > > > Mike : > > > > Michael Pomeroy : > > : > > : > > -- : > > Will Honea |
Re: CJ8 carbon deposits?
Any cat implications with ATF ? (other than the choking feline variety).
Dave Milne, Scotland '99 TJ 4.0 Sahara "Mike Romain" <romainm@sympatico.ca> wrote in message news:3F7C4A55.54B45C4D@sympatico.ca... : When I say 'one massive' cloud of smoke, I am not exaggerating. LOL! : : Mike : : Paul Brogren wrote: : > : > I'm gonna try the water spray tonight. I didn't realize that the amount of : > ATF smoke could be as bad as you say. Good thing I didn't try it. My condo : > neighbors would be quite upset for sure. : > Thanks Always, : > Paul : > : > "Will Honea" <will@codenet.net> wrote in message : > news:JxX2tWiP5BNp-pn2-qq2jcfoBT950@anon.none.net... : > > I use water myself, but I tried ATF once here while back. Both seem : > > to work but the smoke cloud put out by the ATF would make a mosquito : > > fogger proud! Best evidence I've got of it working was this summer : > > when I changed the plugs - pulled a couple and they had a bit of : > > carbon on the body close to the threads. Put them back in, fired it : > > up and ran about a quart of water thru it - I cheat and use a spray : > > bottle to squirt it in so that I get a steady stream of droplets : > > instead of a big splash - and when I pulled the plugs everything on : > > the end looked like new. : > > : > > On Thu, 2 Oct 2003 01:26:05 UTC Mike Romain <romainm@sympatico.ca> : > > wrote: : > > : > > > I worked in garages for years and they always used a pint of ATF to : > > > decarbon an engine. : > > > : > > > I did it to my CJ before a head gasket job and it looked like new with a : > > > couple big loose chunks of carbon still in a couple cylinders. : > > > : > > > You heat up the engine and slowly pour the pint of ATF down the carb : > > > while keeping your hand on the throttle to keep it running. Pour too : > > > fast and it will stall out, you don't want that. : > > > : > > > Then when it's finished shut it down for 10 minutes or so. Start it : > > > back up and rev it good and you are good to go. : > > > : > > > It makes one massive cloud of smoke, but does a sweet job. : > > > : > > > I have been told that a pint of water will do the same, but have no : > > > first hand experience on that. : > > > : > > > Mike : > > > 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00 : > > > 88 Cherokee 235 BFG AT's : > > > : > > > pomerom@yahoo.com wrote: : > > > > : > > > > I'm getting my CJ8 six cylinder in shape. : > > > > : > > > > I recently replaced the spark plugs. Though old in age they have very : > > > > few miles on them; they looked very good -- except for a lot of : > > > > carbon-looking darkness away from the gap. : > > > > : > > > > I also shined a bright light into the cylinders where it appears VERY : > > > > dark and carbon-like on the top of the pistons; like a deposit. : > > > > : > > > > This is probably due to the couple of hundred miles/year I've put on : > > > > the Scrambler for the past few years; along with the old, never quite : > > > > right stock carburator (now replaced with a Weber). : > > > > : > > > > Engine seems in great shape and repeated oil analysis confirm that : > > > > there is very little wear over the 51,000 miles. : > > > > : > > > > Question is -- is there some way without dismantling the engine to get : > > > > rid of these deposits? Is there something I can put in the gas that : > > > > will remove them safely?? : > > > > : > > > > I've been told this is a common issue in the marine industry, but : > > > > don't know what to use. If there is anything that will work?? : > > > > : > > > > Any suggestions, please ..... : > > > > : > > > > Thanks. : > > > > : > > > > Mike : > > > > Michael Pomeroy : > > : > > : > > -- : > > Will Honea |
Re: CJ8 carbon deposits?
Dave Milne did pass the time by typing:
> Any cat implications with ATF ? (other than the choking feline variety). Possibly. Water would be a better choice if you have a cat even if it is the feline variety. :) |
Re: CJ8 carbon deposits?
Dave Milne did pass the time by typing:
> Any cat implications with ATF ? (other than the choking feline variety). Possibly. Water would be a better choice if you have a cat even if it is the feline variety. :) |
Re: CJ8 carbon deposits?
Dave Milne did pass the time by typing:
> Any cat implications with ATF ? (other than the choking feline variety). Possibly. Water would be a better choice if you have a cat even if it is the feline variety. :) |
Re: CJ8 carbon deposits?
Not that I have ever seen.
The garages use it as a part of a tune up for 'city' driven vehicles to stop pinging and I never saw one come back with any troubles. Mike Dave Milne wrote: > > Any cat implications with ATF ? (other than the choking feline variety). > > Dave Milne, Scotland > '99 TJ 4.0 Sahara > > "Mike Romain" <romainm@sympatico.ca> wrote in message > news:3F7C4A55.54B45C4D@sympatico.ca... > : When I say 'one massive' cloud of smoke, I am not exaggerating. LOL! > : > : Mike > : > : Paul Brogren wrote: > : > > : > I'm gonna try the water spray tonight. I didn't realize that the amount > of > : > ATF smoke could be as bad as you say. Good thing I didn't try it. My > condo > : > neighbors would be quite upset for sure. > : > Thanks Always, > : > Paul > : > > : > "Will Honea" <will@codenet.net> wrote in message > : > news:JxX2tWiP5BNp-pn2-qq2jcfoBT950@anon.none.net... > : > > I use water myself, but I tried ATF once here while back. Both seem > : > > to work but the smoke cloud put out by the ATF would make a mosquito > : > > fogger proud! Best evidence I've got of it working was this summer > : > > when I changed the plugs - pulled a couple and they had a bit of > : > > carbon on the body close to the threads. Put them back in, fired it > : > > up and ran about a quart of water thru it - I cheat and use a spray > : > > bottle to squirt it in so that I get a steady stream of droplets > : > > instead of a big splash - and when I pulled the plugs everything on > : > > the end looked like new. > : > > > : > > On Thu, 2 Oct 2003 01:26:05 UTC Mike Romain <romainm@sympatico.ca> > : > > wrote: > : > > > : > > > I worked in garages for years and they always used a pint of ATF to > : > > > decarbon an engine. > : > > > > : > > > I did it to my CJ before a head gasket job and it looked like new > with a > : > > > couple big loose chunks of carbon still in a couple cylinders. > : > > > > : > > > You heat up the engine and slowly pour the pint of ATF down the carb > : > > > while keeping your hand on the throttle to keep it running. Pour > too > : > > > fast and it will stall out, you don't want that. > : > > > > : > > > Then when it's finished shut it down for 10 minutes or so. Start it > : > > > back up and rev it good and you are good to go. > : > > > > : > > > It makes one massive cloud of smoke, but does a sweet job. > : > > > > : > > > I have been told that a pint of water will do the same, but have no > : > > > first hand experience on that. > : > > > > : > > > Mike > : > > > 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00 > : > > > 88 Cherokee 235 BFG AT's > : > > > > : > > > pomerom@yahoo.com wrote: > : > > > > > : > > > > I'm getting my CJ8 six cylinder in shape. > : > > > > > : > > > > I recently replaced the spark plugs. Though old in age they have > very > : > > > > few miles on them; they looked very good -- except for a lot of > : > > > > carbon-looking darkness away from the gap. > : > > > > > : > > > > I also shined a bright light into the cylinders where it appears > VERY > : > > > > dark and carbon-like on the top of the pistons; like a deposit. > : > > > > > : > > > > This is probably due to the couple of hundred miles/year I've put > on > : > > > > the Scrambler for the past few years; along with the old, never > quite > : > > > > right stock carburator (now replaced with a Weber). > : > > > > > : > > > > Engine seems in great shape and repeated oil analysis confirm that > : > > > > there is very little wear over the 51,000 miles. > : > > > > > : > > > > Question is -- is there some way without dismantling the engine to > get > : > > > > rid of these deposits? Is there something I can put in the gas > that > : > > > > will remove them safely?? > : > > > > > : > > > > I've been told this is a common issue in the marine industry, but > : > > > > don't know what to use. If there is anything that will work?? > : > > > > > : > > > > Any suggestions, please ..... > : > > > > > : > > > > Thanks. > : > > > > > : > > > > Mike > : > > > > Michael Pomeroy > : > > > : > > > : > > -- > : > > Will Honea |
Re: CJ8 carbon deposits?
Not that I have ever seen.
The garages use it as a part of a tune up for 'city' driven vehicles to stop pinging and I never saw one come back with any troubles. Mike Dave Milne wrote: > > Any cat implications with ATF ? (other than the choking feline variety). > > Dave Milne, Scotland > '99 TJ 4.0 Sahara > > "Mike Romain" <romainm@sympatico.ca> wrote in message > news:3F7C4A55.54B45C4D@sympatico.ca... > : When I say 'one massive' cloud of smoke, I am not exaggerating. LOL! > : > : Mike > : > : Paul Brogren wrote: > : > > : > I'm gonna try the water spray tonight. I didn't realize that the amount > of > : > ATF smoke could be as bad as you say. Good thing I didn't try it. My > condo > : > neighbors would be quite upset for sure. > : > Thanks Always, > : > Paul > : > > : > "Will Honea" <will@codenet.net> wrote in message > : > news:JxX2tWiP5BNp-pn2-qq2jcfoBT950@anon.none.net... > : > > I use water myself, but I tried ATF once here while back. Both seem > : > > to work but the smoke cloud put out by the ATF would make a mosquito > : > > fogger proud! Best evidence I've got of it working was this summer > : > > when I changed the plugs - pulled a couple and they had a bit of > : > > carbon on the body close to the threads. Put them back in, fired it > : > > up and ran about a quart of water thru it - I cheat and use a spray > : > > bottle to squirt it in so that I get a steady stream of droplets > : > > instead of a big splash - and when I pulled the plugs everything on > : > > the end looked like new. > : > > > : > > On Thu, 2 Oct 2003 01:26:05 UTC Mike Romain <romainm@sympatico.ca> > : > > wrote: > : > > > : > > > I worked in garages for years and they always used a pint of ATF to > : > > > decarbon an engine. > : > > > > : > > > I did it to my CJ before a head gasket job and it looked like new > with a > : > > > couple big loose chunks of carbon still in a couple cylinders. > : > > > > : > > > You heat up the engine and slowly pour the pint of ATF down the carb > : > > > while keeping your hand on the throttle to keep it running. Pour > too > : > > > fast and it will stall out, you don't want that. > : > > > > : > > > Then when it's finished shut it down for 10 minutes or so. Start it > : > > > back up and rev it good and you are good to go. > : > > > > : > > > It makes one massive cloud of smoke, but does a sweet job. > : > > > > : > > > I have been told that a pint of water will do the same, but have no > : > > > first hand experience on that. > : > > > > : > > > Mike > : > > > 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00 > : > > > 88 Cherokee 235 BFG AT's > : > > > > : > > > pomerom@yahoo.com wrote: > : > > > > > : > > > > I'm getting my CJ8 six cylinder in shape. > : > > > > > : > > > > I recently replaced the spark plugs. Though old in age they have > very > : > > > > few miles on them; they looked very good -- except for a lot of > : > > > > carbon-looking darkness away from the gap. > : > > > > > : > > > > I also shined a bright light into the cylinders where it appears > VERY > : > > > > dark and carbon-like on the top of the pistons; like a deposit. > : > > > > > : > > > > This is probably due to the couple of hundred miles/year I've put > on > : > > > > the Scrambler for the past few years; along with the old, never > quite > : > > > > right stock carburator (now replaced with a Weber). > : > > > > > : > > > > Engine seems in great shape and repeated oil analysis confirm that > : > > > > there is very little wear over the 51,000 miles. > : > > > > > : > > > > Question is -- is there some way without dismantling the engine to > get > : > > > > rid of these deposits? Is there something I can put in the gas > that > : > > > > will remove them safely?? > : > > > > > : > > > > I've been told this is a common issue in the marine industry, but > : > > > > don't know what to use. If there is anything that will work?? > : > > > > > : > > > > Any suggestions, please ..... > : > > > > > : > > > > Thanks. > : > > > > > : > > > > Mike > : > > > > Michael Pomeroy > : > > > : > > > : > > -- > : > > Will Honea |
Re: CJ8 carbon deposits?
Not that I have ever seen.
The garages use it as a part of a tune up for 'city' driven vehicles to stop pinging and I never saw one come back with any troubles. Mike Dave Milne wrote: > > Any cat implications with ATF ? (other than the choking feline variety). > > Dave Milne, Scotland > '99 TJ 4.0 Sahara > > "Mike Romain" <romainm@sympatico.ca> wrote in message > news:3F7C4A55.54B45C4D@sympatico.ca... > : When I say 'one massive' cloud of smoke, I am not exaggerating. LOL! > : > : Mike > : > : Paul Brogren wrote: > : > > : > I'm gonna try the water spray tonight. I didn't realize that the amount > of > : > ATF smoke could be as bad as you say. Good thing I didn't try it. My > condo > : > neighbors would be quite upset for sure. > : > Thanks Always, > : > Paul > : > > : > "Will Honea" <will@codenet.net> wrote in message > : > news:JxX2tWiP5BNp-pn2-qq2jcfoBT950@anon.none.net... > : > > I use water myself, but I tried ATF once here while back. Both seem > : > > to work but the smoke cloud put out by the ATF would make a mosquito > : > > fogger proud! Best evidence I've got of it working was this summer > : > > when I changed the plugs - pulled a couple and they had a bit of > : > > carbon on the body close to the threads. Put them back in, fired it > : > > up and ran about a quart of water thru it - I cheat and use a spray > : > > bottle to squirt it in so that I get a steady stream of droplets > : > > instead of a big splash - and when I pulled the plugs everything on > : > > the end looked like new. > : > > > : > > On Thu, 2 Oct 2003 01:26:05 UTC Mike Romain <romainm@sympatico.ca> > : > > wrote: > : > > > : > > > I worked in garages for years and they always used a pint of ATF to > : > > > decarbon an engine. > : > > > > : > > > I did it to my CJ before a head gasket job and it looked like new > with a > : > > > couple big loose chunks of carbon still in a couple cylinders. > : > > > > : > > > You heat up the engine and slowly pour the pint of ATF down the carb > : > > > while keeping your hand on the throttle to keep it running. Pour > too > : > > > fast and it will stall out, you don't want that. > : > > > > : > > > Then when it's finished shut it down for 10 minutes or so. Start it > : > > > back up and rev it good and you are good to go. > : > > > > : > > > It makes one massive cloud of smoke, but does a sweet job. > : > > > > : > > > I have been told that a pint of water will do the same, but have no > : > > > first hand experience on that. > : > > > > : > > > Mike > : > > > 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00 > : > > > 88 Cherokee 235 BFG AT's > : > > > > : > > > pomerom@yahoo.com wrote: > : > > > > > : > > > > I'm getting my CJ8 six cylinder in shape. > : > > > > > : > > > > I recently replaced the spark plugs. Though old in age they have > very > : > > > > few miles on them; they looked very good -- except for a lot of > : > > > > carbon-looking darkness away from the gap. > : > > > > > : > > > > I also shined a bright light into the cylinders where it appears > VERY > : > > > > dark and carbon-like on the top of the pistons; like a deposit. > : > > > > > : > > > > This is probably due to the couple of hundred miles/year I've put > on > : > > > > the Scrambler for the past few years; along with the old, never > quite > : > > > > right stock carburator (now replaced with a Weber). > : > > > > > : > > > > Engine seems in great shape and repeated oil analysis confirm that > : > > > > there is very little wear over the 51,000 miles. > : > > > > > : > > > > Question is -- is there some way without dismantling the engine to > get > : > > > > rid of these deposits? Is there something I can put in the gas > that > : > > > > will remove them safely?? > : > > > > > : > > > > I've been told this is a common issue in the marine industry, but > : > > > > don't know what to use. If there is anything that will work?? > : > > > > > : > > > > Any suggestions, please ..... > : > > > > > : > > > > Thanks. > : > > > > > : > > > > Mike > : > > > > Michael Pomeroy > : > > > : > > > : > > -- > : > > Will Honea |
Re: CJ8 carbon deposits?
good to know, thank you both.
-- Dave Milne, Scotland '99 TJ 4.0 Sahara "Mike Romain" <romainm@sympatico.ca> wrote in message news:3F7EE443.BE4EEEA0@sympatico.ca... : Not that I have ever seen. : : The garages use it as a part of a tune up for 'city' driven vehicles to : stop pinging and I never saw one come back with any troubles. : : Mike : : Dave Milne wrote: : > : > Any cat implications with ATF ? (other than the choking feline variety). : > : > Dave Milne, Scotland : > '99 TJ 4.0 Sahara : > : > "Mike Romain" <romainm@sympatico.ca> wrote in message : > news:3F7C4A55.54B45C4D@sympatico.ca... : > : When I say 'one massive' cloud of smoke, I am not exaggerating. LOL! : > : : > : Mike : > : : > : Paul Brogren wrote: : > : > : > : > I'm gonna try the water spray tonight. I didn't realize that the amount : > of : > : > ATF smoke could be as bad as you say. Good thing I didn't try it. My : > condo : > : > neighbors would be quite upset for sure. : > : > Thanks Always, : > : > Paul : > : > : > : > "Will Honea" <will@codenet.net> wrote in message : > : > news:JxX2tWiP5BNp-pn2-qq2jcfoBT950@anon.none.net... : > : > > I use water myself, but I tried ATF once here while back. Both seem : > : > > to work but the smoke cloud put out by the ATF would make a mosquito : > : > > fogger proud! Best evidence I've got of it working was this summer : > : > > when I changed the plugs - pulled a couple and they had a bit of : > : > > carbon on the body close to the threads. Put them back in, fired it : > : > > up and ran about a quart of water thru it - I cheat and use a spray : > : > > bottle to squirt it in so that I get a steady stream of droplets : > : > > instead of a big splash - and when I pulled the plugs everything on : > : > > the end looked like new. : > : > > : > : > > On Thu, 2 Oct 2003 01:26:05 UTC Mike Romain <romainm@sympatico.ca> : > : > > wrote: : > : > > : > : > > > I worked in garages for years and they always used a pint of ATF to : > : > > > decarbon an engine. : > : > > > : > : > > > I did it to my CJ before a head gasket job and it looked like new : > with a : > : > > > couple big loose chunks of carbon still in a couple cylinders. : > : > > > : > : > > > You heat up the engine and slowly pour the pint of ATF down the carb : > : > > > while keeping your hand on the throttle to keep it running. Pour : > too : > : > > > fast and it will stall out, you don't want that. : > : > > > : > : > > > Then when it's finished shut it down for 10 minutes or so. Start it : > : > > > back up and rev it good and you are good to go. : > : > > > : > : > > > It makes one massive cloud of smoke, but does a sweet job. : > : > > > : > : > > > I have been told that a pint of water will do the same, but have no : > : > > > first hand experience on that. : > : > > > : > : > > > Mike : > : > > > 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00 : > : > > > 88 Cherokee 235 BFG AT's : > : > > > : > : > > > pomerom@yahoo.com wrote: : > : > > > > : > : > > > > I'm getting my CJ8 six cylinder in shape. : > : > > > > : > : > > > > I recently replaced the spark plugs. Though old in age they have : > very : > : > > > > few miles on them; they looked very good -- except for a lot of : > : > > > > carbon-looking darkness away from the gap. : > : > > > > : > : > > > > I also shined a bright light into the cylinders where it appears : > VERY : > : > > > > dark and carbon-like on the top of the pistons; like a deposit. : > : > > > > : > : > > > > This is probably due to the couple of hundred miles/year I've put : > on : > : > > > > the Scrambler for the past few years; along with the old, never : > quite : > : > > > > right stock carburator (now replaced with a Weber). : > : > > > > : > : > > > > Engine seems in great shape and repeated oil analysis confirm that : > : > > > > there is very little wear over the 51,000 miles. : > : > > > > : > : > > > > Question is -- is there some way without dismantling the engine to : > get : > : > > > > rid of these deposits? Is there something I can put in the gas : > that : > : > > > > will remove them safely?? : > : > > > > : > : > > > > I've been told this is a common issue in the marine industry, but : > : > > > > don't know what to use. If there is anything that will work?? : > : > > > > : > : > > > > Any suggestions, please ..... : > : > > > > : > : > > > > Thanks. : > : > > > > : > : > > > > Mike : > : > > > > Michael Pomeroy : > : > > : > : > > : > : > > -- : > : > > Will Honea |
Re: CJ8 carbon deposits?
good to know, thank you both.
-- Dave Milne, Scotland '99 TJ 4.0 Sahara "Mike Romain" <romainm@sympatico.ca> wrote in message news:3F7EE443.BE4EEEA0@sympatico.ca... : Not that I have ever seen. : : The garages use it as a part of a tune up for 'city' driven vehicles to : stop pinging and I never saw one come back with any troubles. : : Mike : : Dave Milne wrote: : > : > Any cat implications with ATF ? (other than the choking feline variety). : > : > Dave Milne, Scotland : > '99 TJ 4.0 Sahara : > : > "Mike Romain" <romainm@sympatico.ca> wrote in message : > news:3F7C4A55.54B45C4D@sympatico.ca... : > : When I say 'one massive' cloud of smoke, I am not exaggerating. LOL! : > : : > : Mike : > : : > : Paul Brogren wrote: : > : > : > : > I'm gonna try the water spray tonight. I didn't realize that the amount : > of : > : > ATF smoke could be as bad as you say. Good thing I didn't try it. My : > condo : > : > neighbors would be quite upset for sure. : > : > Thanks Always, : > : > Paul : > : > : > : > "Will Honea" <will@codenet.net> wrote in message : > : > news:JxX2tWiP5BNp-pn2-qq2jcfoBT950@anon.none.net... : > : > > I use water myself, but I tried ATF once here while back. Both seem : > : > > to work but the smoke cloud put out by the ATF would make a mosquito : > : > > fogger proud! Best evidence I've got of it working was this summer : > : > > when I changed the plugs - pulled a couple and they had a bit of : > : > > carbon on the body close to the threads. Put them back in, fired it : > : > > up and ran about a quart of water thru it - I cheat and use a spray : > : > > bottle to squirt it in so that I get a steady stream of droplets : > : > > instead of a big splash - and when I pulled the plugs everything on : > : > > the end looked like new. : > : > > : > : > > On Thu, 2 Oct 2003 01:26:05 UTC Mike Romain <romainm@sympatico.ca> : > : > > wrote: : > : > > : > : > > > I worked in garages for years and they always used a pint of ATF to : > : > > > decarbon an engine. : > : > > > : > : > > > I did it to my CJ before a head gasket job and it looked like new : > with a : > : > > > couple big loose chunks of carbon still in a couple cylinders. : > : > > > : > : > > > You heat up the engine and slowly pour the pint of ATF down the carb : > : > > > while keeping your hand on the throttle to keep it running. Pour : > too : > : > > > fast and it will stall out, you don't want that. : > : > > > : > : > > > Then when it's finished shut it down for 10 minutes or so. Start it : > : > > > back up and rev it good and you are good to go. : > : > > > : > : > > > It makes one massive cloud of smoke, but does a sweet job. : > : > > > : > : > > > I have been told that a pint of water will do the same, but have no : > : > > > first hand experience on that. : > : > > > : > : > > > Mike : > : > > > 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00 : > : > > > 88 Cherokee 235 BFG AT's : > : > > > : > : > > > pomerom@yahoo.com wrote: : > : > > > > : > : > > > > I'm getting my CJ8 six cylinder in shape. : > : > > > > : > : > > > > I recently replaced the spark plugs. Though old in age they have : > very : > : > > > > few miles on them; they looked very good -- except for a lot of : > : > > > > carbon-looking darkness away from the gap. : > : > > > > : > : > > > > I also shined a bright light into the cylinders where it appears : > VERY : > : > > > > dark and carbon-like on the top of the pistons; like a deposit. : > : > > > > : > : > > > > This is probably due to the couple of hundred miles/year I've put : > on : > : > > > > the Scrambler for the past few years; along with the old, never : > quite : > : > > > > right stock carburator (now replaced with a Weber). : > : > > > > : > : > > > > Engine seems in great shape and repeated oil analysis confirm that : > : > > > > there is very little wear over the 51,000 miles. : > : > > > > : > : > > > > Question is -- is there some way without dismantling the engine to : > get : > : > > > > rid of these deposits? Is there something I can put in the gas : > that : > : > > > > will remove them safely?? : > : > > > > : > : > > > > I've been told this is a common issue in the marine industry, but : > : > > > > don't know what to use. If there is anything that will work?? : > : > > > > : > : > > > > Any suggestions, please ..... : > : > > > > : > : > > > > Thanks. : > : > > > > : > : > > > > Mike : > : > > > > Michael Pomeroy : > : > > : > : > > : > : > > -- : > : > > Will Honea |
Re: CJ8 carbon deposits?
good to know, thank you both.
-- Dave Milne, Scotland '99 TJ 4.0 Sahara "Mike Romain" <romainm@sympatico.ca> wrote in message news:3F7EE443.BE4EEEA0@sympatico.ca... : Not that I have ever seen. : : The garages use it as a part of a tune up for 'city' driven vehicles to : stop pinging and I never saw one come back with any troubles. : : Mike : : Dave Milne wrote: : > : > Any cat implications with ATF ? (other than the choking feline variety). : > : > Dave Milne, Scotland : > '99 TJ 4.0 Sahara : > : > "Mike Romain" <romainm@sympatico.ca> wrote in message : > news:3F7C4A55.54B45C4D@sympatico.ca... : > : When I say 'one massive' cloud of smoke, I am not exaggerating. LOL! : > : : > : Mike : > : : > : Paul Brogren wrote: : > : > : > : > I'm gonna try the water spray tonight. I didn't realize that the amount : > of : > : > ATF smoke could be as bad as you say. Good thing I didn't try it. My : > condo : > : > neighbors would be quite upset for sure. : > : > Thanks Always, : > : > Paul : > : > : > : > "Will Honea" <will@codenet.net> wrote in message : > : > news:JxX2tWiP5BNp-pn2-qq2jcfoBT950@anon.none.net... : > : > > I use water myself, but I tried ATF once here while back. Both seem : > : > > to work but the smoke cloud put out by the ATF would make a mosquito : > : > > fogger proud! Best evidence I've got of it working was this summer : > : > > when I changed the plugs - pulled a couple and they had a bit of : > : > > carbon on the body close to the threads. Put them back in, fired it : > : > > up and ran about a quart of water thru it - I cheat and use a spray : > : > > bottle to squirt it in so that I get a steady stream of droplets : > : > > instead of a big splash - and when I pulled the plugs everything on : > : > > the end looked like new. : > : > > : > : > > On Thu, 2 Oct 2003 01:26:05 UTC Mike Romain <romainm@sympatico.ca> : > : > > wrote: : > : > > : > : > > > I worked in garages for years and they always used a pint of ATF to : > : > > > decarbon an engine. : > : > > > : > : > > > I did it to my CJ before a head gasket job and it looked like new : > with a : > : > > > couple big loose chunks of carbon still in a couple cylinders. : > : > > > : > : > > > You heat up the engine and slowly pour the pint of ATF down the carb : > : > > > while keeping your hand on the throttle to keep it running. Pour : > too : > : > > > fast and it will stall out, you don't want that. : > : > > > : > : > > > Then when it's finished shut it down for 10 minutes or so. Start it : > : > > > back up and rev it good and you are good to go. : > : > > > : > : > > > It makes one massive cloud of smoke, but does a sweet job. : > : > > > : > : > > > I have been told that a pint of water will do the same, but have no : > : > > > first hand experience on that. : > : > > > : > : > > > Mike : > : > > > 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00 : > : > > > 88 Cherokee 235 BFG AT's : > : > > > : > : > > > pomerom@yahoo.com wrote: : > : > > > > : > : > > > > I'm getting my CJ8 six cylinder in shape. : > : > > > > : > : > > > > I recently replaced the spark plugs. Though old in age they have : > very : > : > > > > few miles on them; they looked very good -- except for a lot of : > : > > > > carbon-looking darkness away from the gap. : > : > > > > : > : > > > > I also shined a bright light into the cylinders where it appears : > VERY : > : > > > > dark and carbon-like on the top of the pistons; like a deposit. : > : > > > > : > : > > > > This is probably due to the couple of hundred miles/year I've put : > on : > : > > > > the Scrambler for the past few years; along with the old, never : > quite : > : > > > > right stock carburator (now replaced with a Weber). : > : > > > > : > : > > > > Engine seems in great shape and repeated oil analysis confirm that : > : > > > > there is very little wear over the 51,000 miles. : > : > > > > : > : > > > > Question is -- is there some way without dismantling the engine to : > get : > : > > > > rid of these deposits? Is there something I can put in the gas : > that : > : > > > > will remove them safely?? : > : > > > > : > : > > > > I've been told this is a common issue in the marine industry, but : > : > > > > don't know what to use. If there is anything that will work?? : > : > > > > : > : > > > > Any suggestions, please ..... : > : > > > > : > : > > > > Thanks. : > : > > > > : > : > > > > Mike : > : > > > > Michael Pomeroy : > : > > : > : > > : > : > > -- : > : > > Will Honea |
Re: CJ8 carbon deposits?
In appropriate amounts water works wonders on carbon build up. If you've
ever torn down an engine that's had an internal coolant leak into the combustion chambers (bad head gasket, head crack, etc.) the only piece of good news is the lack of carbon. Combustion chambers are nearly clean as new. Another tactic to get carbon off the intake valves of newer engines with FI, EGR and retarded ignition timing has been to blow crushed walnut shells through the intake ports (with the valves closed, of course). Audi and BMW were using this as a fix back in the 80's and apparently it's still a recognized cure. I'm not sure if you are required to eat all the walnuts first as part of the procedure and suggested repair time. "Dave Milne" <jeep@_nospam_milne.info> wrote in message news:0OBfb.8755$6K6.73122859@news-text.cableinet.net... > good to know, thank you both. > > -- > Dave Milne, Scotland > '99 TJ 4.0 Sahara > > "Mike Romain" <romainm@sympatico.ca> wrote in message > news:3F7EE443.BE4EEEA0@sympatico.ca... > : Not that I have ever seen. > : > : The garages use it as a part of a tune up for 'city' driven vehicles to > : stop pinging and I never saw one come back with any troubles. > : > : Mike > : > : Dave Milne wrote: > : > > : > Any cat implications with ATF ? (other than the choking feline variety). > : > > : > Dave Milne, Scotland > : > '99 TJ 4.0 Sahara > : > > : > "Mike Romain" <romainm@sympatico.ca> wrote in message > : > news:3F7C4A55.54B45C4D@sympatico.ca... > : > : When I say 'one massive' cloud of smoke, I am not exaggerating. LOL! > : > : > : > : Mike > : > : > : > : Paul Brogren wrote: > : > : > > : > : > I'm gonna try the water spray tonight. I didn't realize that the > amount > : > of > : > : > ATF smoke could be as bad as you say. Good thing I didn't try it. > My > : > condo > : > : > neighbors would be quite upset for sure. > : > : > Thanks Always, > : > : > Paul > : > : > > : > : > "Will Honea" <will@codenet.net> wrote in message > : > : > news:JxX2tWiP5BNp-pn2-qq2jcfoBT950@anon.none.net... > : > : > > I use water myself, but I tried ATF once here while back. Both > seem > : > : > > to work but the smoke cloud put out by the ATF would make a > mosquito > : > : > > fogger proud! Best evidence I've got of it working was this > summer > : > : > > when I changed the plugs - pulled a couple and they had a bit of > : > : > > carbon on the body close to the threads. Put them back in, fired > it > : > : > > up and ran about a quart of water thru it - I cheat and use a > spray > : > : > > bottle to squirt it in so that I get a steady stream of droplets > : > : > > instead of a big splash - and when I pulled the plugs everything > on > : > : > > the end looked like new. > : > : > > > : > : > > On Thu, 2 Oct 2003 01:26:05 UTC Mike Romain <romainm@sympatico.ca> > : > : > > wrote: > : > : > > > : > : > > > I worked in garages for years and they always used a pint of ATF > to > : > : > > > decarbon an engine. > : > : > > > > : > : > > > I did it to my CJ before a head gasket job and it looked like > new > : > with a > : > : > > > couple big loose chunks of carbon still in a couple cylinders. > : > : > > > > : > : > > > You heat up the engine and slowly pour the pint of ATF down the > carb > : > : > > > while keeping your hand on the throttle to keep it running. > Pour > : > too > : > : > > > fast and it will stall out, you don't want that. > : > : > > > > : > : > > > Then when it's finished shut it down for 10 minutes or so. > Start it > : > : > > > back up and rev it good and you are good to go. > : > : > > > > : > : > > > It makes one massive cloud of smoke, but does a sweet job. > : > : > > > > : > : > > > I have been told that a pint of water will do the same, but have > no > : > : > > > first hand experience on that. > : > : > > > > : > : > > > Mike > : > : > > > 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00 > : > : > > > 88 Cherokee 235 BFG AT's > : > : > > > > : > : > > > pomerom@yahoo.com wrote: > : > : > > > > > : > : > > > > I'm getting my CJ8 six cylinder in shape. > : > : > > > > > : > : > > > > I recently replaced the spark plugs. Though old in age they > have > : > very > : > : > > > > few miles on them; they looked very good -- except for a lot > of > : > : > > > > carbon-looking darkness away from the gap. > : > : > > > > > : > : > > > > I also shined a bright light into the cylinders where it > appears > : > VERY > : > : > > > > dark and carbon-like on the top of the pistons; like a > deposit. > : > : > > > > > : > : > > > > This is probably due to the couple of hundred miles/year I've > put > : > on > : > : > > > > the Scrambler for the past few years; along with the old, > never > : > quite > : > : > > > > right stock carburator (now replaced with a Weber). > : > : > > > > > : > : > > > > Engine seems in great shape and repeated oil analysis confirm > that > : > : > > > > there is very little wear over the 51,000 miles. > : > : > > > > > : > : > > > > Question is -- is there some way without dismantling the > engine to > : > get > : > : > > > > rid of these deposits? Is there something I can put in the > gas > : > that > : > : > > > > will remove them safely?? > : > : > > > > > : > : > > > > I've been told this is a common issue in the marine industry, > but > : > : > > > > don't know what to use. If there is anything that will work?? > : > : > > > > > : > : > > > > Any suggestions, please ..... > : > : > > > > > : > : > > > > Thanks. > : > : > > > > > : > : > > > > Mike > : > : > > > > Michael Pomeroy > : > : > > > : > : > > > : > : > > -- > : > : > > Will Honea > > |
Re: CJ8 carbon deposits?
In appropriate amounts water works wonders on carbon build up. If you've
ever torn down an engine that's had an internal coolant leak into the combustion chambers (bad head gasket, head crack, etc.) the only piece of good news is the lack of carbon. Combustion chambers are nearly clean as new. Another tactic to get carbon off the intake valves of newer engines with FI, EGR and retarded ignition timing has been to blow crushed walnut shells through the intake ports (with the valves closed, of course). Audi and BMW were using this as a fix back in the 80's and apparently it's still a recognized cure. I'm not sure if you are required to eat all the walnuts first as part of the procedure and suggested repair time. "Dave Milne" <jeep@_nospam_milne.info> wrote in message news:0OBfb.8755$6K6.73122859@news-text.cableinet.net... > good to know, thank you both. > > -- > Dave Milne, Scotland > '99 TJ 4.0 Sahara > > "Mike Romain" <romainm@sympatico.ca> wrote in message > news:3F7EE443.BE4EEEA0@sympatico.ca... > : Not that I have ever seen. > : > : The garages use it as a part of a tune up for 'city' driven vehicles to > : stop pinging and I never saw one come back with any troubles. > : > : Mike > : > : Dave Milne wrote: > : > > : > Any cat implications with ATF ? (other than the choking feline variety). > : > > : > Dave Milne, Scotland > : > '99 TJ 4.0 Sahara > : > > : > "Mike Romain" <romainm@sympatico.ca> wrote in message > : > news:3F7C4A55.54B45C4D@sympatico.ca... > : > : When I say 'one massive' cloud of smoke, I am not exaggerating. LOL! > : > : > : > : Mike > : > : > : > : Paul Brogren wrote: > : > : > > : > : > I'm gonna try the water spray tonight. I didn't realize that the > amount > : > of > : > : > ATF smoke could be as bad as you say. Good thing I didn't try it. > My > : > condo > : > : > neighbors would be quite upset for sure. > : > : > Thanks Always, > : > : > Paul > : > : > > : > : > "Will Honea" <will@codenet.net> wrote in message > : > : > news:JxX2tWiP5BNp-pn2-qq2jcfoBT950@anon.none.net... > : > : > > I use water myself, but I tried ATF once here while back. Both > seem > : > : > > to work but the smoke cloud put out by the ATF would make a > mosquito > : > : > > fogger proud! Best evidence I've got of it working was this > summer > : > : > > when I changed the plugs - pulled a couple and they had a bit of > : > : > > carbon on the body close to the threads. Put them back in, fired > it > : > : > > up and ran about a quart of water thru it - I cheat and use a > spray > : > : > > bottle to squirt it in so that I get a steady stream of droplets > : > : > > instead of a big splash - and when I pulled the plugs everything > on > : > : > > the end looked like new. > : > : > > > : > : > > On Thu, 2 Oct 2003 01:26:05 UTC Mike Romain <romainm@sympatico.ca> > : > : > > wrote: > : > : > > > : > : > > > I worked in garages for years and they always used a pint of ATF > to > : > : > > > decarbon an engine. > : > : > > > > : > : > > > I did it to my CJ before a head gasket job and it looked like > new > : > with a > : > : > > > couple big loose chunks of carbon still in a couple cylinders. > : > : > > > > : > : > > > You heat up the engine and slowly pour the pint of ATF down the > carb > : > : > > > while keeping your hand on the throttle to keep it running. > Pour > : > too > : > : > > > fast and it will stall out, you don't want that. > : > : > > > > : > : > > > Then when it's finished shut it down for 10 minutes or so. > Start it > : > : > > > back up and rev it good and you are good to go. > : > : > > > > : > : > > > It makes one massive cloud of smoke, but does a sweet job. > : > : > > > > : > : > > > I have been told that a pint of water will do the same, but have > no > : > : > > > first hand experience on that. > : > : > > > > : > : > > > Mike > : > : > > > 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00 > : > : > > > 88 Cherokee 235 BFG AT's > : > : > > > > : > : > > > pomerom@yahoo.com wrote: > : > : > > > > > : > : > > > > I'm getting my CJ8 six cylinder in shape. > : > : > > > > > : > : > > > > I recently replaced the spark plugs. Though old in age they > have > : > very > : > : > > > > few miles on them; they looked very good -- except for a lot > of > : > : > > > > carbon-looking darkness away from the gap. > : > : > > > > > : > : > > > > I also shined a bright light into the cylinders where it > appears > : > VERY > : > : > > > > dark and carbon-like on the top of the pistons; like a > deposit. > : > : > > > > > : > : > > > > This is probably due to the couple of hundred miles/year I've > put > : > on > : > : > > > > the Scrambler for the past few years; along with the old, > never > : > quite > : > : > > > > right stock carburator (now replaced with a Weber). > : > : > > > > > : > : > > > > Engine seems in great shape and repeated oil analysis confirm > that > : > : > > > > there is very little wear over the 51,000 miles. > : > : > > > > > : > : > > > > Question is -- is there some way without dismantling the > engine to > : > get > : > : > > > > rid of these deposits? Is there something I can put in the > gas > : > that > : > : > > > > will remove them safely?? > : > : > > > > > : > : > > > > I've been told this is a common issue in the marine industry, > but > : > : > > > > don't know what to use. If there is anything that will work?? > : > : > > > > > : > : > > > > Any suggestions, please ..... > : > : > > > > > : > : > > > > Thanks. > : > : > > > > > : > : > > > > Mike > : > : > > > > Michael Pomeroy > : > : > > > : > : > > > : > : > > -- > : > : > > Will Honea > > |
Re: CJ8 carbon deposits?
In appropriate amounts water works wonders on carbon build up. If you've
ever torn down an engine that's had an internal coolant leak into the combustion chambers (bad head gasket, head crack, etc.) the only piece of good news is the lack of carbon. Combustion chambers are nearly clean as new. Another tactic to get carbon off the intake valves of newer engines with FI, EGR and retarded ignition timing has been to blow crushed walnut shells through the intake ports (with the valves closed, of course). Audi and BMW were using this as a fix back in the 80's and apparently it's still a recognized cure. I'm not sure if you are required to eat all the walnuts first as part of the procedure and suggested repair time. "Dave Milne" <jeep@_nospam_milne.info> wrote in message news:0OBfb.8755$6K6.73122859@news-text.cableinet.net... > good to know, thank you both. > > -- > Dave Milne, Scotland > '99 TJ 4.0 Sahara > > "Mike Romain" <romainm@sympatico.ca> wrote in message > news:3F7EE443.BE4EEEA0@sympatico.ca... > : Not that I have ever seen. > : > : The garages use it as a part of a tune up for 'city' driven vehicles to > : stop pinging and I never saw one come back with any troubles. > : > : Mike > : > : Dave Milne wrote: > : > > : > Any cat implications with ATF ? (other than the choking feline variety). > : > > : > Dave Milne, Scotland > : > '99 TJ 4.0 Sahara > : > > : > "Mike Romain" <romainm@sympatico.ca> wrote in message > : > news:3F7C4A55.54B45C4D@sympatico.ca... > : > : When I say 'one massive' cloud of smoke, I am not exaggerating. LOL! > : > : > : > : Mike > : > : > : > : Paul Brogren wrote: > : > : > > : > : > I'm gonna try the water spray tonight. I didn't realize that the > amount > : > of > : > : > ATF smoke could be as bad as you say. Good thing I didn't try it. > My > : > condo > : > : > neighbors would be quite upset for sure. > : > : > Thanks Always, > : > : > Paul > : > : > > : > : > "Will Honea" <will@codenet.net> wrote in message > : > : > news:JxX2tWiP5BNp-pn2-qq2jcfoBT950@anon.none.net... > : > : > > I use water myself, but I tried ATF once here while back. Both > seem > : > : > > to work but the smoke cloud put out by the ATF would make a > mosquito > : > : > > fogger proud! Best evidence I've got of it working was this > summer > : > : > > when I changed the plugs - pulled a couple and they had a bit of > : > : > > carbon on the body close to the threads. Put them back in, fired > it > : > : > > up and ran about a quart of water thru it - I cheat and use a > spray > : > : > > bottle to squirt it in so that I get a steady stream of droplets > : > : > > instead of a big splash - and when I pulled the plugs everything > on > : > : > > the end looked like new. > : > : > > > : > : > > On Thu, 2 Oct 2003 01:26:05 UTC Mike Romain <romainm@sympatico.ca> > : > : > > wrote: > : > : > > > : > : > > > I worked in garages for years and they always used a pint of ATF > to > : > : > > > decarbon an engine. > : > : > > > > : > : > > > I did it to my CJ before a head gasket job and it looked like > new > : > with a > : > : > > > couple big loose chunks of carbon still in a couple cylinders. > : > : > > > > : > : > > > You heat up the engine and slowly pour the pint of ATF down the > carb > : > : > > > while keeping your hand on the throttle to keep it running. > Pour > : > too > : > : > > > fast and it will stall out, you don't want that. > : > : > > > > : > : > > > Then when it's finished shut it down for 10 minutes or so. > Start it > : > : > > > back up and rev it good and you are good to go. > : > : > > > > : > : > > > It makes one massive cloud of smoke, but does a sweet job. > : > : > > > > : > : > > > I have been told that a pint of water will do the same, but have > no > : > : > > > first hand experience on that. > : > : > > > > : > : > > > Mike > : > : > > > 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00 > : > : > > > 88 Cherokee 235 BFG AT's > : > : > > > > : > : > > > pomerom@yahoo.com wrote: > : > : > > > > > : > : > > > > I'm getting my CJ8 six cylinder in shape. > : > : > > > > > : > : > > > > I recently replaced the spark plugs. Though old in age they > have > : > very > : > : > > > > few miles on them; they looked very good -- except for a lot > of > : > : > > > > carbon-looking darkness away from the gap. > : > : > > > > > : > : > > > > I also shined a bright light into the cylinders where it > appears > : > VERY > : > : > > > > dark and carbon-like on the top of the pistons; like a > deposit. > : > : > > > > > : > : > > > > This is probably due to the couple of hundred miles/year I've > put > : > on > : > : > > > > the Scrambler for the past few years; along with the old, > never > : > quite > : > : > > > > right stock carburator (now replaced with a Weber). > : > : > > > > > : > : > > > > Engine seems in great shape and repeated oil analysis confirm > that > : > : > > > > there is very little wear over the 51,000 miles. > : > : > > > > > : > : > > > > Question is -- is there some way without dismantling the > engine to > : > get > : > : > > > > rid of these deposits? Is there something I can put in the > gas > : > that > : > : > > > > will remove them safely?? > : > : > > > > > : > : > > > > I've been told this is a common issue in the marine industry, > but > : > : > > > > don't know what to use. If there is anything that will work?? > : > : > > > > > : > : > > > > Any suggestions, please ..... > : > : > > > > > : > : > > > > Thanks. > : > : > > > > > : > : > > > > Mike > : > : > > > > Michael Pomeroy > : > : > > > : > : > > > : > : > > -- > : > : > > Will Honea > > |
Re: CJ8 carbon deposits?
Thirty years ago all transmission fluid, except for Ford was whale
oil, your cat might have enjoyed that. God Bless America, ßill O|||||||O mailto:-------------------- http://www.----------.com/ DougW wrote: > > Possibly. Water would be a better choice if you have a cat > even if it is the feline variety. :) |
Re: CJ8 carbon deposits?
Thirty years ago all transmission fluid, except for Ford was whale
oil, your cat might have enjoyed that. God Bless America, ßill O|||||||O mailto:-------------------- http://www.----------.com/ DougW wrote: > > Possibly. Water would be a better choice if you have a cat > even if it is the feline variety. :) |
Re: CJ8 carbon deposits?
Thirty years ago all transmission fluid, except for Ford was whale
oil, your cat might have enjoyed that. God Bless America, ßill O|||||||O mailto:-------------------- http://www.----------.com/ DougW wrote: > > Possibly. Water would be a better choice if you have a cat > even if it is the feline variety. :) |
Re: CJ8 carbon deposits?
you would have thought cats would give you loads of respect for being able
to Hunt Really Big Things, but nah ! I have no idea why I just said that. Dave Milne, Scotland '99 TJ 4.0 Sahara "L.W. (ßill) ------ III" <----------@cox.net> wrote in message news:3F7EFE28.CA7140B1@cox.net... : Thirty years ago all transmission fluid, except for Ford was whale : oil, your cat might have enjoyed that. : God Bless America, ßill O|||||||O : mailto:-------------------- http://www.----------.com/ : : DougW wrote: : > : > Possibly. Water would be a better choice if you have a cat : > even if it is the feline variety. :) |
Re: CJ8 carbon deposits?
you would have thought cats would give you loads of respect for being able
to Hunt Really Big Things, but nah ! I have no idea why I just said that. Dave Milne, Scotland '99 TJ 4.0 Sahara "L.W. (ßill) ------ III" <----------@cox.net> wrote in message news:3F7EFE28.CA7140B1@cox.net... : Thirty years ago all transmission fluid, except for Ford was whale : oil, your cat might have enjoyed that. : God Bless America, ßill O|||||||O : mailto:-------------------- http://www.----------.com/ : : DougW wrote: : > : > Possibly. Water would be a better choice if you have a cat : > even if it is the feline variety. :) |
Re: CJ8 carbon deposits?
you would have thought cats would give you loads of respect for being able
to Hunt Really Big Things, but nah ! I have no idea why I just said that. Dave Milne, Scotland '99 TJ 4.0 Sahara "L.W. (ßill) ------ III" <----------@cox.net> wrote in message news:3F7EFE28.CA7140B1@cox.net... : Thirty years ago all transmission fluid, except for Ford was whale : oil, your cat might have enjoyed that. : God Bless America, ßill O|||||||O : mailto:-------------------- http://www.----------.com/ : : DougW wrote: : > : > Possibly. Water would be a better choice if you have a cat : > even if it is the feline variety. :) |
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