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88 Accord, Poor Compression, Chugging sound at exhaust
I have an 88 Honda Accord with 371,000 KM on it and I think the problem is
that it is basically worn out. The compression on all cylinders is between 75 & 90 psi. It is suppose to be at least 141 according to the manual. The timing belt needed changing so I did that job a couple of weeks ago but no change in the symptoms. There is a chugging/puffing sound that comes out the exhaust. I am thinking that this would be caused by exhaust valves that are not seating. I have checked valve clearance and they are all set within specs. I am assuming that the problem is a new head assembly and not rings as it doesn't burn oil. I have heard that the catalytic converter plugs up on these older vehicles and that I should remove it and put in a straight pipe. No emission testing where I live, so that may be the cheapest next step. Anyone else had a similar situation? |
Re: 88 Accord, Poor Compression, Chugging sound at exhaust
Ralph wrote: > > I have an 88 Honda Accord with 371,000 KM on it and I think the problem is > that it is basically worn out. The compression on all cylinders is between > 75 & 90 psi. It is suppose to be at least 141 according to the manual. The > timing belt needed changing so I did that job a couple of weeks ago but no > change in the symptoms. There is a chugging/puffing sound that comes out the > exhaust. I am thinking that this would be caused by exhaust valves that are > not seating. I have checked valve clearance and they are all set within > specs. I am assuming that the problem is a new head assembly and not rings > as it doesn't burn oil. I have heard that the catalytic converter plugs up > on these older vehicles and that I should remove it and put in a straight > pipe. No emission testing where I live, so that may be the cheapest next > step. Anyone else had a similar situation? If you don't have emissions testing requirements, remove the converter, cut a hole in the top and dump the contents. Re weld a patch over the previously cut hole and press on... However, I suspect that a set of rings, valve job, and new bearings would be a major contributor to a better running vehicle as well... -- JT Just tooling through cyberspace in my ancient G4 |
Re: 88 Accord, Poor Compression, Chugging sound at exhaust
Ralph wrote: > > I have an 88 Honda Accord with 371,000 KM on it and I think the problem is > that it is basically worn out. The compression on all cylinders is between > 75 & 90 psi. It is suppose to be at least 141 according to the manual. The > timing belt needed changing so I did that job a couple of weeks ago but no > change in the symptoms. There is a chugging/puffing sound that comes out the > exhaust. I am thinking that this would be caused by exhaust valves that are > not seating. I have checked valve clearance and they are all set within > specs. I am assuming that the problem is a new head assembly and not rings > as it doesn't burn oil. I have heard that the catalytic converter plugs up > on these older vehicles and that I should remove it and put in a straight > pipe. No emission testing where I live, so that may be the cheapest next > step. Anyone else had a similar situation? If you don't have emissions testing requirements, remove the converter, cut a hole in the top and dump the contents. Re weld a patch over the previously cut hole and press on... However, I suspect that a set of rings, valve job, and new bearings would be a major contributor to a better running vehicle as well... -- JT Just tooling through cyberspace in my ancient G4 |
Re: 88 Accord, Poor Compression, Chugging sound at exhaust
I also had a 88 LXI and sold it three years ago with 378,000 miles on it.
Hopefully it is still running around town with over 400,000 miles on it. At 200K, I was blowing a lot of oil. I had the engine block slit, baked and the face planed. After three attempt we put in over sized pistons because of a waiver in the wall, and one piston was still blowing oil. The difference in the initial estimate was $200 less than for a remanunfactured short block. The dealership ate more than the $200 to get it right after three attempts. The short block looking back should and was the correct fix. The final outcome was more power and another 178,000 miles. A car this old everything shrinks, cracks, or falls apart when you touch it. Give it the respect it deserves and park in the driveway and just sit in it and play the radio once in a while--no kidding. "Ralph" <ralph.topliffe@shaw.ca> wrote in message news:qRGcd.747345$M95.417612@pd7tw1no... > I have an 88 Honda Accord with 371,000 KM on it and I think the problem is > that it is basically worn out. The compression on all cylinders is between > 75 & 90 psi. It is suppose to be at least 141 according to the manual. The > timing belt needed changing so I did that job a couple of weeks ago but no > change in the symptoms. There is a chugging/puffing sound that comes out the > exhaust. I am thinking that this would be caused by exhaust valves that are > not seating. I have checked valve clearance and they are all set within > specs. I am assuming that the problem is a new head assembly and not rings > as it doesn't burn oil. I have heard that the catalytic converter plugs up > on these older vehicles and that I should remove it and put in a straight > pipe. No emission testing where I live, so that may be the cheapest next > step. Anyone else had a similar situation? > > |
Re: 88 Accord, Poor Compression, Chugging sound at exhaust
I also had a 88 LXI and sold it three years ago with 378,000 miles on it.
Hopefully it is still running around town with over 400,000 miles on it. At 200K, I was blowing a lot of oil. I had the engine block slit, baked and the face planed. After three attempt we put in over sized pistons because of a waiver in the wall, and one piston was still blowing oil. The difference in the initial estimate was $200 less than for a remanunfactured short block. The dealership ate more than the $200 to get it right after three attempts. The short block looking back should and was the correct fix. The final outcome was more power and another 178,000 miles. A car this old everything shrinks, cracks, or falls apart when you touch it. Give it the respect it deserves and park in the driveway and just sit in it and play the radio once in a while--no kidding. "Ralph" <ralph.topliffe@shaw.ca> wrote in message news:qRGcd.747345$M95.417612@pd7tw1no... > I have an 88 Honda Accord with 371,000 KM on it and I think the problem is > that it is basically worn out. The compression on all cylinders is between > 75 & 90 psi. It is suppose to be at least 141 according to the manual. The > timing belt needed changing so I did that job a couple of weeks ago but no > change in the symptoms. There is a chugging/puffing sound that comes out the > exhaust. I am thinking that this would be caused by exhaust valves that are > not seating. I have checked valve clearance and they are all set within > specs. I am assuming that the problem is a new head assembly and not rings > as it doesn't burn oil. I have heard that the catalytic converter plugs up > on these older vehicles and that I should remove it and put in a straight > pipe. No emission testing where I live, so that may be the cheapest next > step. Anyone else had a similar situation? > > |
Re: 88 Accord, Poor Compression, Chugging sound at exhaust
As a follow-up to my original post, the problem has now been found. The
compression test was redone using a gauge with a thread adaptor into the spark plug hole. This set of tests were good, between 160 and 165 on all four cylinders. The contents of the Catalytic converter have been removed and leaving the shell in place. Spark has been verified on all four cylinders. With the engine running, the ignition wire was removed from the #3 cylinder without any noticeable difference in engine speed. #3 cylinder was dead, but had good compression and spark. Ran the engine with #3 spark plug removed and the air expelled through the spark plug hole lacked the smell of "gas", just plain air. This is a carburetored engine, how can 3 cylinders get fuel/air mixture but the one cylinder doesn't, that was the question. In close examination of the face between the intake manifold and the cylinder head (at #3 cylinder intake port), a small section of gasket seemed to have vanished. This was confirmed with a fine wire that could be pushed between the two surfaces. At high speed or under full throttle there is enough fuel going through the carb and the leak is small enough that the problem is barely noticeable. If the gasket gap had been on the bottom side of the intake manifold, it is doubtful that it would have been detected. "James M. Kelly" <jmkelly02@charter.net> wrote in message news:10n92llldmive5@corp.supernews.com... > I also had a 88 LXI and sold it three years ago with 378,000 miles on it. > Hopefully it is still running around town with over 400,000 miles on it. At > 200K, I was blowing a lot of oil. I had the engine block slit, baked and > the face planed. After three attempt we put in over sized pistons because > of a waiver in the wall, and one piston was still blowing oil. The > difference in the initial estimate was $200 less than for a remanunfactured > short block. The dealership ate more than the $200 to get it right after > three attempts. The short block looking back should and was the correct > fix. The final outcome was more power and another 178,000 miles. A car > this old everything shrinks, cracks, or falls apart when you touch it. Give > it the respect it deserves and park in the driveway and just sit in it and > play the radio once in a while--no kidding. > "Ralph" <ralph.topliffe@shaw.ca> wrote in message > news:qRGcd.747345$M95.417612@pd7tw1no... > > I have an 88 Honda Accord with 371,000 KM on it and I think the problem is > > that it is basically worn out. The compression on all cylinders is between > > 75 & 90 psi. It is suppose to be at least 141 according to the manual. The > > timing belt needed changing so I did that job a couple of weeks ago but no > > change in the symptoms. There is a chugging/puffing sound that comes out > the > > exhaust. I am thinking that this would be caused by exhaust valves that > are > > not seating. I have checked valve clearance and they are all set within > > specs. I am assuming that the problem is a new head assembly and not rings > > as it doesn't burn oil. I have heard that the catalytic converter plugs up > > on these older vehicles and that I should remove it and put in a straight > > pipe. No emission testing where I live, so that may be the cheapest next > > step. Anyone else had a similar situation? > > > > > > |
Re: 88 Accord, Poor Compression, Chugging sound at exhaust
As a follow-up to my original post, the problem has now been found. The
compression test was redone using a gauge with a thread adaptor into the spark plug hole. This set of tests were good, between 160 and 165 on all four cylinders. The contents of the Catalytic converter have been removed and leaving the shell in place. Spark has been verified on all four cylinders. With the engine running, the ignition wire was removed from the #3 cylinder without any noticeable difference in engine speed. #3 cylinder was dead, but had good compression and spark. Ran the engine with #3 spark plug removed and the air expelled through the spark plug hole lacked the smell of "gas", just plain air. This is a carburetored engine, how can 3 cylinders get fuel/air mixture but the one cylinder doesn't, that was the question. In close examination of the face between the intake manifold and the cylinder head (at #3 cylinder intake port), a small section of gasket seemed to have vanished. This was confirmed with a fine wire that could be pushed between the two surfaces. At high speed or under full throttle there is enough fuel going through the carb and the leak is small enough that the problem is barely noticeable. If the gasket gap had been on the bottom side of the intake manifold, it is doubtful that it would have been detected. "James M. Kelly" <jmkelly02@charter.net> wrote in message news:10n92llldmive5@corp.supernews.com... > I also had a 88 LXI and sold it three years ago with 378,000 miles on it. > Hopefully it is still running around town with over 400,000 miles on it. At > 200K, I was blowing a lot of oil. I had the engine block slit, baked and > the face planed. After three attempt we put in over sized pistons because > of a waiver in the wall, and one piston was still blowing oil. The > difference in the initial estimate was $200 less than for a remanunfactured > short block. The dealership ate more than the $200 to get it right after > three attempts. The short block looking back should and was the correct > fix. The final outcome was more power and another 178,000 miles. A car > this old everything shrinks, cracks, or falls apart when you touch it. Give > it the respect it deserves and park in the driveway and just sit in it and > play the radio once in a while--no kidding. > "Ralph" <ralph.topliffe@shaw.ca> wrote in message > news:qRGcd.747345$M95.417612@pd7tw1no... > > I have an 88 Honda Accord with 371,000 KM on it and I think the problem is > > that it is basically worn out. The compression on all cylinders is between > > 75 & 90 psi. It is suppose to be at least 141 according to the manual. The > > timing belt needed changing so I did that job a couple of weeks ago but no > > change in the symptoms. There is a chugging/puffing sound that comes out > the > > exhaust. I am thinking that this would be caused by exhaust valves that > are > > not seating. I have checked valve clearance and they are all set within > > specs. I am assuming that the problem is a new head assembly and not rings > > as it doesn't burn oil. I have heard that the catalytic converter plugs up > > on these older vehicles and that I should remove it and put in a straight > > pipe. No emission testing where I live, so that may be the cheapest next > > step. Anyone else had a similar situation? > > > > > > |
Re: 88 Accord, Poor Compression, Chugging sound at exhaust
Ralph wrote:
> > As a follow-up to my original post, the problem has now been found. The > compression test was redone using a gauge with a thread adaptor into the > spark plug hole. This set of tests were good, between 160 and 165 on all > four cylinders. The contents of the Catalytic converter have been removed > and leaving the shell in place. Spark has been verified on all four > cylinders. With the engine running, the ignition wire was removed from the > #3 cylinder without any noticeable difference in engine speed. #3 cylinder > was dead, but had good compression and spark. Ran the engine with #3 spark > plug removed and the air expelled through the spark plug hole lacked the > smell of "gas", just plain air. This is a carburetored engine, how can 3 > cylinders get fuel/air mixture but the one cylinder doesn't, that was the > question. In close examination of the face between the intake manifold and > the cylinder head (at #3 cylinder intake port), a small section of gasket > seemed to have vanished. This was confirmed with a fine wire that could be > pushed between the two surfaces. At high speed or under full throttle > there is enough fuel going through the carb and the leak is small enough > that the problem is barely noticeable. If the gasket gap had been on the > bottom side of the intake manifold, it is doubtful that it would have > been detected. > It sounds like you had a really bad vacuum leak. This could have been easily detected by spraying carburetor cleaner on the manifold to head junction or via a propane enrichment test. Eric |
Re: 88 Accord, Poor Compression, Chugging sound at exhaust
Ralph wrote:
> > As a follow-up to my original post, the problem has now been found. The > compression test was redone using a gauge with a thread adaptor into the > spark plug hole. This set of tests were good, between 160 and 165 on all > four cylinders. The contents of the Catalytic converter have been removed > and leaving the shell in place. Spark has been verified on all four > cylinders. With the engine running, the ignition wire was removed from the > #3 cylinder without any noticeable difference in engine speed. #3 cylinder > was dead, but had good compression and spark. Ran the engine with #3 spark > plug removed and the air expelled through the spark plug hole lacked the > smell of "gas", just plain air. This is a carburetored engine, how can 3 > cylinders get fuel/air mixture but the one cylinder doesn't, that was the > question. In close examination of the face between the intake manifold and > the cylinder head (at #3 cylinder intake port), a small section of gasket > seemed to have vanished. This was confirmed with a fine wire that could be > pushed between the two surfaces. At high speed or under full throttle > there is enough fuel going through the carb and the leak is small enough > that the problem is barely noticeable. If the gasket gap had been on the > bottom side of the intake manifold, it is doubtful that it would have > been detected. > It sounds like you had a really bad vacuum leak. This could have been easily detected by spraying carburetor cleaner on the manifold to head junction or via a propane enrichment test. Eric |
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