Transaxle Painting? Options

[pete]

I want to clean, prep and paint my '74 transaxle. I was thining of using a POR 15 product. Is there a problem with doing this? What type of metal is the trans case? My car is just a Sunday drive. I've read that some people think painting a trans could cause over heating which if this is true painting it with POR 15 would be a real problem considering it creates a completely non-porous surface. Any thoughts would be helpful. Thanks.

[brant]

I've done it on the race car

a lot of people will tell you not too
you can argue it either way
some will say it will insulate the heat and cause problems
others will say that black helps disappate heat (radiators are painted black on watercooled cars)

on my application, the magnesium was already corroded some and pitted. I did it to protect the metal (similar to painting a car to keep it from rusting). I know the sand rail guys paint 914 trannys religiously with no ill results. I can say that I have 2 race trannys (1 painted, 1 not) and the paint hasn't hurt anything. I abuse the crap out of my race tranny and use an F first gear which most say is not possible... so the paint doesn't seem to matter.

I cleaned it very well
then use epoxy refrigerator paint (rattle can)
it completely sticks with no peeling, no problems.

brant

[pete]

I've done it on the race car

a lot of people will tell you not too
you can argue it either way
some will say it will insulate the heat and cause problems
others will say that black helps disappate heat (radiators are painted black on watercooled cars)

on my application, the magnesium was already corroded some and pitted. I did it to protect the metal (similar to painting a car to keep it from rusting). I know the sand rail guys paint 914 trannys religiously with no ill results. I can say that I have 2 race trannys (1 painted, 1 not) and the paint hasn't hurt anything. I abuse the crap out of my race tranny and use an F first gear which most say is not possible... so the paint doesn't seem to matter.

I cleaned it very well
then use epoxy refrigerator paint (rattle can)
it completely sticks with no peeling, no problems.

brant

Thanks for the input Brant. I think I will paint it. I too want to protect the metal.