Hot Rod Forum : Hotrodders Bulletin Board - View Single Post - Compression Testing ....(Hot vs Cold)?
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Old 06-29-2006, 02:03 AM
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well as your engine warms up the metal of the rings will expand giving it less of a gap between the cylinder wall and the piston groove. So it just might be that less compression is escaping because there is less area for it to move through. Your compression is defently better when warmed up but i think that could be just from normal wear on the rings themselves. anyone else have any ideas?
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