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Metal finishing Q&As since 1989

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Aluminum motorcycle engine cases (how to polish smooth?)

I am restoring a older British motorcycle, and would like info on how to polish the main aluminum engine cases to get them smooth and shiny. I've seen show bikes like that and would like to do the same. My cases are rough and pitted, I've cleaned them up with a wire brush on a drill but would like to make them smoother .

Robert B [last name deleted for privacy by Editor]
- Winnipeg, Manitoba, Canada

"The Fine art of the Motorcycle Engine"
by Howe & Peirce

on AbeBooks

or Amazon

(affil links)

I to want to shine up pitted and dull aluminum motorcycle cases. What way was the best?

Randy D [last name deleted for privacy by Editor]
- Seattle,Washington

Use emery cloth a few different grades. from smaller number to larger then wash it with steelwool and soap and water.

Richard Feuerstein
- New York, New York
2006

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Ed. note: Topics 800, 1831, and 10917 go into substantial detail about aluminum polishing.

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