what would cause this to happen ?

[DHMag]

when i first got my SHO, i checked the brakes thoroughly, and they appeared to be fairly new. however, last weekend while doing front struts, i was bewildered at why my left front caliper refused to come off the rotor. come to find out, the inside pad has worn plumb down to the rivets and etched into the rotor about 3/32". there was never any noise from it, nor any feel in the pedal. i checked the slide pins and they were free, any ideas ?

P.S. - needless to say, im doing pads and rotors on the front this weekend.

<small>[ October 16, 2002, 01:30 AM: Message edited by: DHMag ]</small>

 

[rangerj]

DH,

The worn inside pads is a classic symptom of a cocked or hung up caliper piston. It could also indicate that the caliper is frozen on the slide pins, but this is less likely.

You may be able to get away with pressing the pistons back into the calipers and replaceing the pads. However, once the piston gets out a ways from normal pad wear, it will most likely get "cocked" in the bore again.

Sooner or later you will have to replace the caliper. If money is tight, push the piston back in and put off the replacement untill the next time you wear out the pads and another rotor.

If you have the money, you should replace the caliper, as well as the pads and rotor. You may want to consider replaceing both calipers, pads and rotors. Check the slide pins and the "boots" that covers them. The pins should be "greased" with silicone grease. Hope this helps, rangerj

 

[DHMag]

rangerj:
DH,

The worn inside pads is a classic symptom of a cocked or hung up caliper piston. It could also indicate that the caliper is frozen on the slide pins, but this is less likely.

You may be able to get away with pressing the pistons back into the calipers and replaceing the pads. However, once the piston gets out a ways from normal pad wear, it will most likely get "cocked" in the bore again.

Sooner or later you will have to replace the caliper. If money is tight, push the piston back in and put off the replacement untill the next time you wear out the pads and another rotor.

If you have the money, you should replace the caliper, as well as the pads and rotor. You may want to consider replaceing both calipers, pads and rotors. Check the slide pins and the "boots" that covers them. The pins should be "greased" with silicone grease. Hope this helps, rangerj

thanks RangerJ. it is, in fact, the piston cocked in the caliper. so, on top of pads and rotors, i add calipers to the list of thing to buy.

<small>[ October 17, 2002, 01:23 AM: Message edited by: DHMag ]</small>