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Old 01-07-2018, 12:18 PM   #6
Purdy Swoft
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Join Date: May 2010
Location: Alabama
Posts: 6,519
Default Re: Interpreting Compression Test Results

I agree with others that there is a problem with blow by . If the engine is a recent rebuild , the rings may not yet be seated. If its not a recent rebuilt engine or possible gasket or rear pan seal leaks It may be time for a rebuild .
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