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BMW motorcycle aluminum engine is looking bad

December 13, 2009

85 BMW k100 engine, transmission and swingarm made of aluminum alloy is looking bad
pockets that hold water after a wash have brighter streaks under them and in general it just has an uneven sort of look
the finish is textured so polishing is out, seems every thing I try makes it darker and I'm running out of inconspicuous places to test, any ideas?

Tim Koleski
Hobbyist - New Brighton, Pennsylvania

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