Removing a siezed pad pin from front caliper

4 replies to this topic
  • DeeCee

Posted June 29, 2008 - 12:48 AM


The pad pin that secures the brake pad has seized in my caliper and the allen key slot is burred.

Does anyone have any bright ideas about how best to remove the seized pin ?

Your suggestions most appreciated.

  • William1

Posted June 29, 2008 - 12:30 PM


You are able to remove the cap, right?
If the Allen head of the pin is loosing its' 'personality', first, (I assume the caliper is now off the bike, on the bench) I'd pour some PB Blaster penetrant in over the Allen head, let it soak in. lightly tap on the caliper from time to time over the next 24 hours. The following day locate a Torx bit that will barely fit in. Hammer it into the Allen bolt. Use a impact driver, break it loose. Reinstall with a new pin, anti-seizing the threads.

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  • DeeCee

Posted June 29, 2008 - 05:58 PM


Thanks for the suggestion William. I hadn't thought of a torx bit. Will give it a try.

Other than that I was considering drilling it out and re-tapping the hole.

  • grayracer513

Posted June 29, 2008 - 06:23 PM


You can also remove the lower mounting bolt, swing the caliper up, spread the pads, and grab the pin with a pair of small vice grips to apply extra torque while using the above tricks.

  • DeeCee

Posted June 30, 2008 - 06:49 AM


Managed to remove it using a 'screw extractor' The extractor was a good fit into the allen key hole and popped it out just fine.

Thanks for your interest & suggestions.

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