brake squeal |
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brake squeal |
bluhun |
Mar 4 2010, 03:56 PM
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#1
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Member Group: Members Posts: 91 Joined: 23-January 06 From: San Rafael, CA Member No.: 5,464 Region Association: Northern California |
Sometime ago I posted a problem with severe brake squeal following installation of Porterfield R4S pads on my 914-6 conversion car. I'm running Boxster calipers up front and the PMB widened calipers in the rear.
I've been able to trace the problem to the right front caliper. Since the other three calipers don't squeal, I assume that there's some sort of alignment issue between the caliper/pad combo and rotor. However, the caliper didn't squeal before with the Textar pads. The right side also locks up before the left, with lots of tire skreech and smoke, but nothing from the driver's side. Are these two observations related? Any suggestions would be greatly appreciated! |
Tom_T |
Mar 4 2010, 04:22 PM
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#2
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TMI.... Group: Members Posts: 8,320 Joined: 19-March 09 From: Orange, CA Member No.: 10,181 Region Association: Southern California |
Scoring on the disc from prior pads, brake fluid/oil/etc. on the pad material accidentally, loose bits, etc. can all cause squeal. .... but oil/fluid on the pad can also cause pull IIRC!
BTW - even the OG stock pads caused some squeal - esp. under lighter braking (as per Andy, etc.), so they also came out with those little anti-squeal fiber pads to go under the pads when mounted. Haven't tried them, but understand that they do help some. But you need to find & fix the pulling problem first. |
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