1.8 compression results help
06-20-2016, 07:15 PM
#1
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1.8 compression results help
So i did a dry test on a supercharged motor, the spark plugs were pretty drenched with oil and the results came out
-170
-150
-165
-160
valve cover seems to be leaking. Since its a car im interested in buying, i dont have a compressor to do a leak down test and didnt think to do a wet test while i was at it. But considering the variation with cylinder 2, is this a NO GO?
-170
-150
-165
-160
valve cover seems to be leaking. Since its a car im interested in buying, i dont have a compressor to do a leak down test and didnt think to do a wet test while i was at it. But considering the variation with cylinder 2, is this a NO GO?
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06-20-2016, 07:19 PM
#3
What are your plans with the car? Are you going to build on top of what the previous owner has done or are you prepared to have a motor waiting for you when this one goes?
12.5% difference; I'd like to see under 10, but it could be super worse. #2 is a bit dodgy, might be able to just break it down and hone/re-ring the cylinders and be fine
12.5% difference; I'd like to see under 10, but it could be super worse. #2 is a bit dodgy, might be able to just break it down and hone/re-ring the cylinders and be fine
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06-20-2016, 08:10 PM
#5
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What are your plans with the car? Are you going to build on top of what the previous owner has done or are you prepared to have a motor waiting for you when this one goes?
12.5% difference; I'd like to see under 10, but it could be super worse. #2 is a bit dodgy, might be able to just break it down and hone/re-ring the cylinders and be fine
12.5% difference; I'd like to see under 10, but it could be super worse. #2 is a bit dodgy, might be able to just break it down and hone/re-ring the cylinders and be fine
That oil on the spark plugs could easily be the valve cover gasket right? Not sure if that compression result is very bad or not
Last edited by markooo89; 06-21-2016 at 01:37 AM.
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06-20-2016, 10:36 PM
#6
id like to keep it as is and have some fun with it for a bit but if the motor blowd i wouldnt mind paying to have it rebuilt with better internals. Just dont wanna drive it home then blow it 2 hours later loll
that oil on the spark plugs could easily be the valve cover gasket right?
that oil on the spark plugs could easily be the valve cover gasket right?
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06-21-2016, 09:56 AM
#7
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Oil on the spark plugs could very easily be a VC gasket. I have seen that many times before. Compression numbers a a bit wide spread then I would like to see, but I have seen far worse on running cars.
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