disk brakes too close

dolbz12
dolbz12 Posts: 30
edited August 2007 in MTB workshop & tech
hey

last week after my cycle i put my bike in the car with weels off. brakes are Hayes Hydraulic HFX-9.

when i came to put the weels back on the pads were too close and the front i couldnt get the weel on and the back i could but was so close that the weel hardly moved. the brake levers feel the same as normal, not solid or pull too easy.

i took the pads out and tried to push the pistons back in but they just keep moving back together or once pulled brake level (with pads back in) moved back together.

Help would be nice

cheers

Comments

  • supersonic
    supersonic Posts: 82,708
    Do you have the manual or service guide? Is available on the Hayes site. Sounds like the pistons may be sticking. Rinse with water, then lube with hydro fluid.
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  • tagmnbagm
    tagmnbagm Posts: 111
    Hi,

    Don't pull brake lever without the wheel in place or you will have this problem. :P
    Yesterday is History, Tomorrow is a Mystery, Today is a Gift. That is why it is known as the present.
  • dolbz12
    dolbz12 Posts: 30
    how does not having the wheel in place make a difference?

    thanks for the reply
  • tagmnbagm
    tagmnbagm Posts: 111
    Hi,

    The brakes are self centering. By not having the wheels in place and pressing the lever they have nothing to close against, and so press against each other like you described. Push back the pistons by using a 8mm ring spanner, replace the brake pads, put the wheel inplace, slacken off the caliper mounting, press the brake lever and hold, tighten the caliper mounting, then release lever, and you should hace reasonably centred brakes. 8)
    Yesterday is History, Tomorrow is a Mystery, Today is a Gift. That is why it is known as the present.

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