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Compression Advice - 230 210 230 190 - 2008 AP2

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Old 07-26-2015, 09:16 PM
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Originally Posted by Lord09
Hmm, I'm still doing research here, but if the leakdown tests show a level similar to a healthy engine, would that indicate no damage to the valves has occurred?

Would it then be safe to assume a VA would cure the low compression?

I did have my heart set on this car, but I'm about ready to let it pass.
Yes. How did they do the compression? Did you witness it? Each compression gauge is different but i've found the Snap-On's to be the most reliable. Was the engine warm when they did the compression test?

Follow up the compression test with a full leak down. If the leak down results are poor then it will give you a much better indicator of the engine's health. If the Leak down results are good i would take a close look at the valvetrain (retainers, keepers, springs etc.)
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Old 07-27-2015, 02:38 AM
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Hell even a bad test fitting, which is terribly common, will cause readings to vary.
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Old 07-27-2015, 07:11 AM
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Originally Posted by Slowcrash_101
Hell even a bad test fitting, which is terribly common, will cause readings to vary.
Correct.

It's generally good practice to use two different compression testers as results varies between them.
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