compression test results
12-30-2004, 12:04 PM
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compression test results
ok so i did a compression test on my b16 because it started to smoke heavily and there is oil in my exhaust. the first time through i got 220, 211, 216, and 205 on cylinders 1-4, respectively. i went back and retested the #1 and got 196 this time, so i tested again and still got 196. i poured a little oil in and retested and it was 225. does this mean i have bad rings on that cylinder? the engine was warm when i tested.
12-30-2004, 12:27 PM
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according to ALLdata that I have at work, anything over 190 is acceptable for a dry compression test. The numbers will always be better during a wet test, even if you have brand new rings because the oil with seal it that much better. I would also try a leak down test if you have access to the equipment.
12-30-2004, 08:29 PM
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Originally Posted by b16LeiaEGcivic
according to ALLdata that I have at work, anything over 190 is acceptable for a dry compression test. The numbers will always be better during a wet test, even if you have brand new rings because the oil with seal it that much better. I would also try a leak down test if you have access to the equipment.
it has nothing to do with peak numbers it has to do with how close the numbers are to each other. IMO cylinder 4 is shot
12-31-2004, 01:43 PM
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Originally Posted by BoostedITR41
it has nothing to do with peak numbers it has to do with how close the numbers are to each other. IMO cylinder 4 is shot
01-01-2005, 09:37 AM
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Originally Posted by Shmoo
You mean cylinder 1. I agree. The rings look fine in every other cylinder though.
that would be cylinder 4 and if 1 dropped to 196 that may also be junk. make sure you hold the gas pedal at full throttle when you do the tests
01-01-2005, 10:12 PM
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Originally Posted by FLAT_LINER
u dont touch the pedal when u do a compression test do you? i thought u just let it idle
h:
