Caliper is rubbing on my front rotor

[lonny]

Hi guys,

I've been lurking on here for a while now and need some help with my 99 C2. While driving home from work yesterday I made a left turn into my driveway and heard a horrifying grinding metal on metal noise. I assumed it was a loose sway bar link but upon inspection of my driver side rotor I found what the issue was. A section on the caliper is making contact with my rotor. I pulled the pads today to get a better look. I've ordered new rotors but aside from that I'm not sure how to correct the caliper from making contact. Any help would be appreciated.

[ericinboca]

Hi guys,

I've been lurking on here for a while now and need some help with my 99 C2. While driving home from work yesterday I made a left turn into my driveway and heard a horrifying grinding metal on metal noise. I assumed it was a loose sway bar link but upon inspection of my driver side rotor I found what the issue was. A section on the caliper is making contact with my rotor. I pulled the pads today to get a better look. I've ordered new rotors but aside from that I'm not sure how to correct the caliper from making contact. Any help would be appreciated.

That stud is what holds the pad in place, keeping it from rotating around with the rotor. It is held in with a small roll pin. Take the wheel off, stick your head in and look at the underside of the caliper. There is a small hole where the roll pin goes.

I got a roll pin that fits from smallparts.com. That was several years ago, so I do not know if they still carry roll pins. But the measurement is 1/2" long with what looks like an OD of 1/8".

I removed the caliper, cleaned out the hole and cleaned up the stud with brake parts cleaner, and used some Loctite on the roll pin when I put it back in. No problems since.

The stud on mine came out the other way and hit on the inside wheel spokes while on the track - man did I think something was horribly broken with all that racket.

[lonny]

Thanks for the response. The spring or roll pins you mentioned are still inside the caliper. I've purchased new ones in the hopes I can remove the old pins slide the stud over and install new pins but I'm unsure how to get the pins out aside from drilling them out (which seems like a bad idea).

[ericinboca]

Thanks for the response. The spring or roll pins you mentioned are still inside the caliper. I've purchased new ones in the hopes I can remove the old pins slide the stud over and install new pins but I'm unsure how to get the pins out aside from drilling them out (which seems like a bad idea).

I imagine the half of the pin that fits into the hole on the stud sheared off.

Will the stud come out on the wheel side? If so, take the wheel off and slide the stud out. If you cannot slide the stud out that way, then you may want to remove the caliper, just to get that stud out.

With the stud out, use some WD 40 and see if you can push the remainder of the roll pin up into the hole for the stud. You may need to find something of the correct diameter and use a light tapping with a hammer.

[lonny]

I have the caliper off and the pads out. I've tried prying and light hammering on the studs both ways to no avail. I'll get a bigger hammer and see if I can get it out. Also going to try some penetrating lube and a small punch. Thanks again for your help.

Edited August 29, 2011 by lonny