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Old 04-30-2009, 08:29 PM
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DaSouthWon DaSouthWon is offline
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I would think the machining done when it was rebuilt would have taken care of any bore variations. After thinking on it a while I think what probably happened is that when the engine was taken out of use from what ever it's former life was the intake valve just happened to be in the open position and some funk got down in there. It doesn't appear to be corrosion but it's pretty much impossible for it to be anything else. Mechanically I cant think of anything that would cause it, especially in an engine that ran. I figure at an inch from top dead center one valve or the other should be opening or closing depending on stroke.
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