Quote:
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Originally Posted by P.E.Haiges
JimmL,
What is indicated with a compression test is the leakage past the rings or valves and varies widely with the wear on the engine. So, the most important thing in measuring the compression is the difference in the readings from cylinder to cylinder and not the absolute pressure.
P E H
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Thank you PEH, that is exactly what my mechanic said. #'s 2-5 were exactly the same, #1 was 20 less.
