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Thread: whattayathink?

  1. #1
    I am Bob
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    whattayathink?

    My 08' I think Hayes Stroker has lost nearly all of it's power. The pistons still push out and squeeze the disk, but with very little power. I Bled the brake a couple times. I ran lots of fliud through the system and went through all the precautions to make sure there was no air in the system. There is no sign of a fluid leak anywhere and the pads have plenty of life in them.
    Any guesses out there of what might be causing the problem?

  2. #2
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    If fluid ain't leakin' there has to be air in the system.

  3. #3
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    Is the lever feel hard or spongey?

    Contaminated (oils) pads is a possibility. Any unusual noise?
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    What luck for rulers, that men do not think - Adolf Hitler

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    My guess would be pad contamination.

    You could try a couple of techniques if you don't want to try new pads

    -use non-chlorinated brake cleaner
    -baking the pads in the oven. I've heard 15mins @ 450 works well.

  5. #5
    I am Bob
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    Quote Originally Posted by SteveUK
    Is the lever feel hard or spongey?

    Contaminated (oils) pads is a possibility. Any unusual noise?
    The lever is a bit spongy. Even with the reach adjusted all the way out I can bottom out the plunger. The brakes engage, but with little power. I'm pretty sure it is not a pad issue and thing there is somthing mechanical going on.

    I guess I cannot rule out air in the system, but I can't figure out how it would be getting in there. The absense of fluid leaking out is confusing me too.
    I guess I'll have my LBS look at it.

  6. #6
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    The lever is a bit spongy. Even with the reach adjusted all the way out I can bottom out the plunger.
    First things to mind would be that you either have air in the system or a lever seal has failed. The lack of fluid on the outside of the brake might suggest that the failed seal is your problem, but without being able to confirm that the brake is properly bled, I'm not able to say for sure.

    It's the kind of problem that is much easier to diagnose with the brake to hand, so your idea of getting somebody at your shop to take a look is probably a good one.
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    What luck for rulers, that men do not think - Adolf Hitler

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