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B20E compression testing 140-160

posted by  Phil S. on  Tue Sep 9 12:56 CST 2003
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last visit: Fri Oct 24 13:18 CST 2014
[RELATED]

Take those readings with a large grain of salt. Compression tests ar really only valid for comparing the cylinders; they are notoriously inaccurate numerically. Looks like you're basically in good shape.

The fact that adding oil did bring a cyl up 12 lbs does indicate some leakage through the rings at cranking speed. This may not be significant at running speeds.

The OE gasket is .050", and the thick one is .080". Just eyeball the thing with some calipers and it should be easy to distinguish which one is in there -- .030" difference is a lot.






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