02 Boxster - New Rotors - Rear Passenger Rubbing noise - 986 Forum - The Community for Porsche Boxster & Cayman Owners

der Geist · 01-31-2010, 09:01 AM

I had a nearly identical sound when I did my rotors for th 1st time. It was just the dust shield. It won't go away by itself, you will have to bend it very slightly out of the way.

rob76turbo · 01-31-2010, 10:29 AM

I listed to the audio on the video and it is the Dust Shield. It is very thin, easy to bend (which in this case is both good and bad news).

Take the wheel off and as you rotate the rotor gently bend back the various parts of the dust shield until the noise goes away. Once you have located the spot on the shield that touches the rotor, bend it back slightly with hand tools until you can spin it without it making a noise. Just went through the same thing with my rotors / shields on my car when I put new rotors on.

roborob · 01-31-2010, 01:48 PM

der Geist | rob76turbo:

I think you're right about the Dust Shield. I actually thought that too and started bending back the flat pieces, but the noise still persisted.

Is it ok to bend the circular part of the Dust Shield? I'll have to to the rotor off in order to do that, but it'll be well worth it if it means a quiet ride.

Sorry for all the pics, but I'm a visual learner.

This is taken from a parts site:

Thanks for your help and quick responses. It's great to have a forum like this, especially for a person just getting their feet wet.

ekam · 01-31-2010, 02:16 PM

For christ sake, please, toss these $30 out of spec rotors and get something half decent like the zimmermanns.

http://www.pelicanparts.com/catalog/shopcart/986M/POR_986M_BRKpad_pg4.htm

der Geist · 01-31-2010, 02:43 PM

The dust shields are extremely easy to bend. It was hard figuring out exactly which part was making the noise but once I found out it was really easy to fix. Make sure your new rotor isn't warped before you put it all back together warped before you put everything back together.

roborob · 01-31-2010, 03:00 PM

thanks for your honesty ekam ... and you're probably right. I went cheap b/c all these little repairs I'm doing is killing me. But of all the repairs, brakes is something I should not of skimped out on. After thinking about it ... $30 a rotor is ridiculous! LOL

That said...I just placed an order for the Zimmermann Coat Z rotors.

der Geist: If the new Zimmermann rotors still cause some rotor/dust shield noise, then I'll take your advice and bend them.

I'll post an update when I have the new rotors installed ... thursday or so.

Thanks again.

Lil bastard · 02-01-2010, 01:30 PM

Since you're replacing them, this is probably moot. But remove the parts and paint each suspect area with White Out. Reinstall and run a mile or two and dismantle to see where the White Out has worn away - there's your issue.

As far as buying cheap parts - don't. If you want to make the car perfect, cheap parts won't accomplish that. They'll be ill fitting, non-warranted and waste time and $$.

Many are finding out that while Boxsters are becoming cheap cars to buy, they are not, nor will they ever be, cheap cars to own!

Cheers!