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Old 01-26-2013, 02:26 AM   #21
everycredit
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Joined: May 2012
Location: Tacoma
Oddometer: 270
I don't think any detergent is going to work. Aircraft stripper may work (this is to repaint/refinish cylinder head covers). A wire brush may pit magnesium/magnesium alloy. I''m not too experienced working with magnesium, so I don't know how soft it is and what you can get away with.

Paint with high-temp primer and paint.
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