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Brake caliper corrosion?
Is there a coating of some sort on the brake calipers Audi uses (G60
calipers, in particular) to prevent corrosion?
The story: My brother pulled a set of G60 calipers from a 5000 that
was in an engine fire. Neither Simple Green nor brake cleaner worked
very well to remove the carbon buildup. I went out and bought a wire
brush for my drill, and it does a reasonble job (i.e. I can find metal
underneath that black coating). Part of the caliper that was cleaned,
though, appears to be oxidizing (or reacting in some manner). The
shiny gold-ish color metal is turning a sickly-looking gray. I was
wondering if the wire brush has removed some kind of coating which will
make the caliper more prone to rusting.
'85 Coupe GT
Eric J. Fluhr Email: email@example.com
630FP Logic/Circuit Design Phone: (512) 838-7589
IBM Server Group Austin, TX