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Old 08-22-2020, 04:00 PM   #17
Jack Shaft
Senior Member
Join Date: Dec 2019
Posts: 943
Default Re: Engine Knock at 2000 RPM

Trace values of a substance,like the copper component of bronze wont register as a 'hard value' on the spectrometer. Generally a copper 'warning' is from the bearing shell once the babbit is gone.Bronze wear will show as bronze.
Oil samples require rigorous attention to sample collection method as well as a baseline of samples to compare to.
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