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Oil in air filter box, compression test. 200 1976

posted by  mikan on  Tue Jul 13 06:24 CST 2004
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last visit: Mon Jul 31 13:44 CST 2000
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I recently noticed that my 76 244 B21F (Cal) has oil leaking down into the air filter housing from the flame trap hose.

Does this indicate worn rings? I did a compression test, but am not sure how to interpret it - it took about 4 or 5 compression cycles to build the correct pressure (170 psi). Went something like this: 110, 130, 150, 170 psi. This is all in about a second and a half or so of cranking. The instructions and my manual arent real clear whether this indicates worn rings or not. They say 170 psi should be reached "quickly", whereas a worn engine will build pressure gradually.

Anyone have experience with compression tests and or the oil leakage? Thanks for any help. Carl.






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