Avid Juicy maintenance, advice needed

Discussion in 'UK and Europe' started by Rob, May 8, 2006.

  1. Rob

    Rob Guest

    Hi, try as I might, I just cannot get the caliper of my front brake to
    stop rubbing on the rotor. The rotor itself is as good as true and only
    deflects by less than 0.5mm.

    I have relativley new pads and it looks like the pistons do not retract
    fully back int the caliper body. The pistons seem to protrude about 2mm
    from the caliper body. If they could move back about 1mm each side then
    the pads would be well clear of the rotor.

    Does anyone know if the pistons are supposed to retract back flush with
    caliper body when pushed. I have moved them around a bit with a screw
    driver, but am reluctant to push too hard incase I do some damge. I did
    manage to free up a slow moving piston.

    Is there such a thing as piston lubricant and can I use it on my Avids?

    The walls of the pistons get a bit gungy and I clean them with water.
    Is this a good idea?