Bill Babcock wrote:
> You need to have had the engine running at least briefly before the test, to
> get oil on the rings and the valves as well seated as they are going to be.
You should have the engine up to normal operating temperature to achieve
proper leak down test results. Clearances change with temperature.
Not wanting to burn my delicate fingers I tend to take my compression
readings cold and just use the results to compare one cylinder to another.
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