Front Brake Dragging Heavily Gilera VX

Discussion in 'The Workshop' started by zombiegod, Jan 3, 2016.

  1. zombiegod

    zombiegod Member

    Messages:
    87
    Rides:
    Gilera Runner VX 125
    Backed the pistons off using a proper tool.

    Bled the brakes.

    Checked the pads but the Pistons must be sh*tted up, and the wheel still drags heavily, after re-assembly.

    Works fine without the brake caliper!

    Never popped the pistons out to clean them, is it easy to do, seeing as I've done the above checks many times before?

    Cheers,
    Rob.
     
  2. MARSH

    MARSH Whooooo!

    Messages:
    3,200
    Rides:
    Piaggio Typhoon
    Pump the pistons out to clean under the seals (the groove they sit in) water corrodes them and you get a white crud!
     
  3. zombiegod

    zombiegod Member

    Messages:
    87
    Rides:
    Gilera Runner VX 125
    Can you buy new seals/pistons easily?
     
  4. Stevep

    Stevep Well-Known Member

    Messages:
    5,895
    Nope! Piaggio/Gilera don't make or supply them as spares.
     
  5. zombiegod

    zombiegod Member

    Messages:
    87
    Rides:
    Gilera Runner VX 125
    I guess I'll just have to...

    1. Pump them out.

    2. Clean the pistons and the inside of the caliper as best as I can.

    3. Grease them with Red Rubber Grease.

    4. Refit them.

    5. Bleed the brakes.

    Does that sound as if it's all I can do?!?!?

    Cheers,
    Rob.
     
  6. Stevep

    Stevep Well-Known Member

    Messages:
    5,895
    and check the disc for warpage (with the caliper off)
     
  7. scubabiker

    scubabiker NITROJUNKIE

    Messages:
    7,321
    i have actually seen a poston/seal set, from piaggio, but cant remember what bike it was on....... but like marsh says, take the seals out and scrape the white crap out, you may need to make a tool to do it (i very small allen wrench will work) the best thing for cleaning the crud off the seals is your fingernails, ive done bloody hundreds of piaggio/derbi brake callipers over the years!
     
    MARSH likes this.
  8. Stevep

    Stevep Well-Known Member

    Messages:
    5,895
    Did you find the problem?
     
  9. zombiegod

    zombiegod Member

    Messages:
    87
    Rides:
    Gilera Runner VX 125
    Pistons were crudded to hell. Pumped them out, and regreased them. Presto!!!
     
    scubabiker likes this.

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