A bit of corrosion I think on wheels - any advice?

[cobalt911]

Ola,

I have 18" sport design two piece wheels a la GT3 on my C2. I clean them weekly and they are pretty immaculate but this week I have noticed a white patch on the rim near the tyre which doesn't respond to the normal vigorous sponge. Looks like a bit of corrosion but it wasn't there the week before and I am a little mystified!

Any suggestions on getting rid of it? I know there are all sorts of things you shouldn't do with these diamond cut wheels and elbow grease has no effect......

Many thanks....

Mark

 

[NXI20]

It's almost certainly the laquer lifting, water getting in underneath and the start of corrosion; a very common problem with diamond-cut rims []

I've never really found a good way of effecting an lasting repair, but you could hold off the need for a proper refurb by removing the lifted laquer very carefully with wet & dry paper, lightly polishing the corrosion out and then re-laquering. Expect to have to do this again (and again, and again)!

 

[cobalt911]

Thanks for the reply...

The thing I can't work out on these wheels is that the spokes and hub are painted and lacquered whereas the separate rim appears to be unpainted which is why I am worried about getting going with some sandpaper....they have a machined appearance and I think I would do a terrible job...looks like something for a professional...

 

[NXI20]

I know what you mean, but the laquer is there. I have exactly the same problem on a set of BBS RXII wheels & a quick rub of 800 emery in the direction of the wheel rotation is all that's needed to remove the laquer.

I know it doesn't help, but several people warned me off the Porsche 2-piece wheels before I bought my 911, saying that they were known to corrode very easily & need frequent refurbs as a result.

 

[Andy Tims]

ORIGINAL: NXI20

It's almost certainly the laquer lifting, water getting in underneath and the start of corrosion;

Seconded.

Refurb options include paint only, paint & laquer, or anodising for the rims.

 

[Mercurial]

ORIGINAL: Andy Tims

ORIGINAL: NXI20

It's almost certainly the laquer lifting, water getting in underneath and the start of corrosion;

Seconded.

Refurb options include paint only, paint & laquer, or anodising for the rims.

Anodising is probably the most effective, long-lasting option.