Fudged up compression test results
#1
Fudged up compression test results
Hey guys I bought my 03 s2k last July, and I ran into problems with it about a month later. It was random misfires, so I took it to the dealer to have it checked out had the plugs replaced and the coil packs checked out. It was still misfiring so they suggested a valve adjustment, so I took it home and did it myself and it cleared the code. Well I recently (2 weeks ago) installed some BC stage 2 cams and adjusted the valves to the specs of BC ( int .006 exh .008). Now I am getting the misfire codes for cylinders 2,3,4...great so I check the plugs and they look normal except for cyl 1 it had a bit of oil on it. Well I know the plugs are fine so I move the coils around and clear the code. I start it up and go to take it for a drive to get the CEL to pop up. I didn't even make it out of the garage the car would die when letting off the gas. So I decide to do a compression test ( after reading some misfire posts) so I warm the engine up again and the CEL light pops up so read it and it says misfire on cyl 3? Hmm but now to the point:
Here are my compression test results
Cyl1 240 240 240
Cyl2. 215 215 220
Cyl3. 140 140 140
Cyl4. 230 225 230
my question is what would cause cyl 3 to be so low (bent valves?)
Car has 118k miles on it and I'm 165 ft above sea level
I apologize for the round about way of telling my story, any help is greatly appreciated!
Here are my compression test results
Cyl1 240 240 240
Cyl2. 215 215 220
Cyl3. 140 140 140
Cyl4. 230 225 230
my question is what would cause cyl 3 to be so low (bent valves?)
Car has 118k miles on it and I'm 165 ft above sea level
I apologize for the round about way of telling my story, any help is greatly appreciated!
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#9
well i havent done a leak down test because i am waiting on my leak down tester from harbor freight. I was bored so i did another wet compression test and it really but up my test results from 140 to 210 so i am pretty sure my rings need to be replaced. As mentioned earlier my car has 118k miles on it so i am just going to rebuild my bottom end with a 2.4l stroker kit! i want to stay NA for now...and FI later on. If anybody has any better suggestions for rebuilding my bottom end please let me know!
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JLEEzAP2
California - Southern California S2000 Owners
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05-06-2011 01:15 AM