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Topic Review (Newest First)
05-21-2013 12:37 PM
clarkkent Sounds like maybe it has a cocaine habit
05-21-2013 09:42 AM
Neil F. For what it's worth, humidity is not going to cause aluminum alloys to corrode. Contaminates will. Western Mass, I'd assume they use road salt in the winter. That is a catalyst for corrosion.
05-21-2013 09:35 AM
AppleRock Thanks for all the responses. Not near the ocean though, but guess just the humidity in the air is enough to cause it.
05-21-2013 08:31 AM
CoyoteOn2 Alot more prevalent around sea side comunities, not so common in midwest / desert areas. I'm no chemist, but I'd guess it could have alot to do with the amount of salt in the air.
05-21-2013 08:11 AM
KillerKustums Yeah it's just oxidation.
05-20-2013 10:19 PM
DocterWrangler I wouldn't worry about it, its not gonna hurt anything. Electric connection cleaners would work to clean it if you want to remove the residue. Do not spray it into the unit tho
05-20-2013 10:14 PM
DocterWrangler When some metals oxidize they produce a white powder, others produce rust. Usually alloys corrode as a white residue
05-20-2013 10:14 PM
doclouie It is aluminum oxide. The aluminum equivalent of rust. I would not worry about it. If you really care hit it with a wire brush and spray it down with a rattle can clear coat.
05-20-2013 09:58 PM
Evpjr If I had to make a guess it is alkali build up, possibly from road dust.
05-20-2013 11:56 AM
wwch99tj Its just corrosion(aluminums rust ...) , perfectly normal
I wouldn't worry about getting it off at all...
05-20-2013 11:55 AM
White powder on my alternator?

Is it some sort of rust?
Curious, have it on the right-angle tube cover to my thermostat also.

Anyone seen this? How to clean it? WD 40? Coke? Just wire brush it off?

Alternator seems to function just's purely cosmetic, but sure does look crappy.

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