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...unlike in art, a patina like that is definitely NOT something you want.
...some soaking in MacKay's Engine Cleaner will remove that gunk, but it'll also make all "wear" clearances/tolerances get bigger.
...lastly, the "top" compression ring might be a problem, because it rides right up against the "wear ring" in the cylinder -- installing a new ring with its new, unworn, 'square' ring edge will be "crunching" up against "the rounded" wear ring in the cylinder...and could result in a broken ring. MORAL: the top ring and cylinder bore cleanup are critical to longivity.
Last edited by gone-ot; 01-26-2010 at 10:02 AM..
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