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Did a leak down after warming engine and removing plug tubes. Only checked #1, 2 and 4. About the same results from all. 40% leakage... that don't sound good. Sounds like air under the blower.



IF you found 40% leakage I think you found the problem ... and it's not a broken intake rocker ... if the air is not coming out the intake or the exhaust then that leaves the rings ...