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Thread: Stuck Piston

  1. #1
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    Stuck Piston

    On Thursday I was changing the pads on my Juicy 3's. The front went smoothly, but I ran into a problem on the rear caliper. It was a struggle to get the pads in, and when I put the wheel back on it would barely turn. I pulled the pads off and discovered the outside rotor doesn't want to retract without some effort. I put a little Tri-flow on it and worked it in and out but that didn't improve anything, Now it looks like I had it out to far and it's sitting crooked in the hole.

    Am I looking at a rebuild and bleed? I'm not afraid to attemp it myself, but money is tight and Avid bleed kits are $40 - $50. I need to figure out how to do this on the cheap, so any ideas would appreciated. Anyone work for beer?

  2. #2
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    so either my timing is awesome or there's lots of stuck Juicy calipers out there Like the OP, I was in process of changing pads on my Juicy 3's and encountered almost identical problem: can't push the pistons out wide enough to fit the new pads in. I don't mean to hijack your thread, but I am guessing the solutions to both our problems are similar.

    in my case, if I push one piston in (with box-end wrench), then the other pops out - so it seems impossible to increase the gap between the pistons. I am guessing that this requires a bleed to remove fluid from the system, but 1) I don't understand how this could happen - isn't brake fluid supposed to have stable density? 2) as OP says, bleed kits are ~$40.

    there is a prior thread with some tips on getting the pistons moving (Juicy owners, beware the sticky piston!, but this didn't directly address my issue.

  3. #3
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    I found the bleed kit on Amazon for $32 with free shipping. When I get it, I'm going to take the caliper apart and go from there. I hope it's just a clean up and maybe polishing the piston.

  4. #4
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    stuck piston

    did you end up doing the rebuild? I'm trying to follow the avid juicy seven rebuild instructions but when I get to the point where they say to use a compressor/air gun to push out the piston, it barely budges and won't come out.

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