Avid Sticky Piston

chedabob
chedabob Posts: 1,133
edited July 2011 in MTB workshop & tech
The outboard piston on my front Avid Juicy 3 is really sticky. I've tried holding the other one and pressing the lever, which made it move a little. I put some dot fluid on it and pushed it back, and repeated this a few times, but it still doesn't move anywhere near as much as the inboard one. If I push both back, pulling the lever moves the outboard one by about 0.5mm and the inboard one by 2-3mm. Any ideas what to do next? I think this has only started since I advanced the pads. I also couldn't get the inboard one to move back very far, so I opened the caliper bleed port, pushed both back, and then bled the system.

Comments

  • nicklouse
    nicklouse Posts: 50,673
    strip and clean then. and maybe if that does not work swap them over.
    "Do not follow where the path may lead, Go instead where there is no path, and Leave a Trail."
    Parktools :?:SheldonBrown
  • chedabob
    chedabob Posts: 1,133
    nicklouse wrote:
    strip and clean then. and maybe if that does not work swap them over.

    Do I need any special tools or a new piston kit to do that? And once the fluid is out, do I just need to bleed the system to completely refill it?

    Oh, and is Isopropyl alcohol fine for cleaning?

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