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compression hiss?

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Old Mar 7, 2013 | 02:30 PM
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Ron_Stoppable's Avatar
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Default compression hiss?

this is my first time doing an engine build so dont bash me lol. i was just wondering are you suppose to hear a slight his in the valve cover/ oil pan if you turn your engine over with a breaker bar? it isnt loud. sounds like its in the oil pan. does compression seap past the rings?

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Old Mar 7, 2013 | 03:17 PM
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It's junk, start over.

JK, they all do this to some degree.
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Old Mar 7, 2013 | 03:27 PM
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Yes, it's just air getting past the rings.
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