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Old 05-24-2022, 05:51 PM   #4
Factory Guy
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Join Date: Jun 2019
Location: Midway USA Kentucky
Posts: 577
Re: Compression Test on 200k LQ4 - Question on Results

I had similar results on my LQ4 when I pulled the heads. The engine appeared very clean on the top end.

I did NOT do a compression test prior. However I am glad I checked by pulling my heads, as I found CLY 4 had an exhaust valve leaking and on CLY 6 the intake was not sealing, so I ended up doing a valve job on both heads.
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