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Stuck pin on rear brake pad, tips?

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    Stuck pin on rear brake pad, tips?

    Doing various things on my bike this weekend, successfully mounted to fresh tires, a fresh rear sprocket and front pads. Feeling pretty good about myself, it was depressing to let a tiny pin halt my progress.

    Ref brake pad pdf on Bikecliff's site: http://members.dslextreme.com/users/...brake_pads.pdf

    One of the two pins that hold the pads is really stuck. The other came out with some difficulty, it was obvious that rust was making it stick. The other won't budge at all. On the front end it's slightly bent downwards, but I can wiggle it a bit. Since both old pads are still on, it's very difficult to get good grip on it with pliers.

    I didn't want WD-40 in my caliper but gave in and soaked it good near the back hole. Letting it soak now while I consult the great wealth of GS knowledge.

    I've tried tapping it in slightly with the other pin, hoping to loosen it but it's probably bottomed anyway. The head of the pin does not protrude from the front hole, so I can only grip it inside - have tried twisting and pulling without luck. The pads are too worn to just put it back together. Got any tips for me?

    I'm also having trouble loosening the front sprocket, I took off the chain first which was a bad idea in retrospect. Wrenching it just turns the engine over. Any tips here or should I just wait until the new chain is back on?

    #2
    Tapping it out should work. Usual technique is tap it out - tap it back in - tap it out a bit more and so on. Adding a bit of twist and lube helps as well.
    79 GS1000S
    79 GS1000S (another one)
    80 GSX750
    80 GS550
    80 CB650 cafe racer
    75 PC50 - the one with OHV and pedals...
    75 TS100 - being ridden (suicidally) by my father

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      #3
      If you hava a punck, smack it with the hammer. If not look for a thick nail, or anything (like a screwdriver) to start it out. Try to turn it with a pliers and if you can't get a good grip, use a side cutter (Apply enough pressure to get a good grip, don't use all your force) Twist it back and forth until it loosens up. Get some good rust buster (PB Blaster is really good) and soak it good. Later clean it up with brake cleaner. make sure those pins are not bent cause the padsslide back and forth in them. If the pins are still good, sand them down till all the rust is gone. Get some antisieze and apply at the back of the pads, the bottom where they touch the calipper, as well as the top. And also apply some in the pins.

      Hope this helps :0)

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        #4
        I had a "duh" moment and just split the caliper. Some fluid mess, but new pads came on good. Problem with that pin is it only slides one way, so you can't punch it in the desired direction.

        Got the rear wheel on and everything seems nice.

        Now to tackle the rest....thanks guys.

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