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#1 |
TST Ruined My Life!
Join Date: Jun 2006
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Compression test results...can it be too high?
Is something wrong here?? Maybe the gauge is inaccurate, and several people told me as long as all cylinders are the same I shouldnt worry, but I just want to make sure.
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#2 | |
Tri-State Post Whore
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Take the numbers lightly, it's more important that they are within 5% of each other.
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#7 |
TST Ruined My Life!
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It's all that mad-vtak...
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#8 | |
The [TST] Don
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having the numbers be close is most important, but the fact that your numbers are off by so much means something isnt right. its most likely that you dont have the proper specs for your engine, but another possibility would be excessive carbon buildup in the cylinders. i'd guess you're not referencing the right specs though...
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#10 |
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you have a factory freak
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#12 | |
The [TST] Don
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i dont think the compression will continue to rise if you crank it over too much... i've never kept going, but it sure seems to level off after a few cranks.
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#13 | ||
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Quote:
Maybe bad gauge?
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#14 | |
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hate to say it, but if you honestly believe that cylinder pressures are under 200psi on the combustion stroke you may/may not be retarded. Cranking it over until it maxes out might not be as accurate but it is much easier for a novice to interpret those numbers. They wont show minor cylinder wear, but they will deffinately show any major problem.
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#16 |
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#17 |
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Their would be no scaveging affect in the exhaust. If you really cranked it that much not all of the pressure would escape depending on where your at on the stroke. 200psi isn't going to do anything though. I was always told to crank it 5-6 times and get your reading. Were you guys at least holding the throttle open?
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#18 | |
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Quote:
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#20 |
TST Ruined My Life!
Join Date: Jun 2006
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Now that I looked on other sites it says that compression should be 165...and another says 175
here is something from the civic forums http://www.civicforums.com/forums/36...-good-bad.html
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2004 MAZDASPEED MX-5 : 328whp / 308wtq / 2500lbs 2012 Toyota Prius 2 : Daily Driver Last edited by CleanNeon98; 05-06-2008 at 07:23 PM. |
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