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When brakes start to go bad...?

Discussion in 'Downhill & Freeride' started by haromtnbiker, Sep 7, 2005.

  1. haromtnbiker

    haromtnbiker Turbo Monkey

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    When hydraulic brakes need to be bleed, how soon do they totally stop working after they start to feel bad?

    I am asking because I was riding one morning, and I was pulling in my lever on my hayes mags twice as far as the rear brake (which works fine) I get home, put it in the garage, and the next morning I come out and the brake lever just gets pulled to the bar with no force, and the brake does not stop at all.
    Now I know it needs to be bleed, but does a brake go bad this fast? I dont see any oil leaking any where.




    :confused:
     
    #1 -   Sep 7, 2005

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  2. mack

    mack Turbo Monkey

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    You wont see any oil, they are Hayes. :stosh:

    Are the brakes new? I had this problem happen to me once and it has happened to my Shop's rental fleet. I believe it was because air gets traped in the master cylinder at the factory. (not entirely sure) Be carefull though. I bled them and they worked fine, but right as i was getting on the bike, i grabed the rear brake lever as i sat on it...POP! Hisssss, the rear hose exploded in the middle. I have never bought another set of Hayes.
     
    #2 -   Sep 7, 2005
  3. SXtrailrider

    SXtrailrider Turbo Monkey

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    it might be the pads in the brakes you need to get new ones after a lot of intense braking they do were out and every tw oyears get your brakes bleed
     
    #3 -   Sep 7, 2005
  4. Brian HCM#1

    Brian HCM#1 MMMMMMMMM BEER!!!!!!!!!!

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    It could also be the brake line.
     
    #4 -   Sep 7, 2005
  5. haromtnbiker

    haromtnbiker Turbo Monkey

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    Would that have something to do with the fact that I just learned xups a day before this happened? I did them like 500 times.
    Maybe my brake line is getting pinched somewhere when the bars are all the way turned.

    And no, these brakes are not new. They are an old model, I bought them from Profro!
     
    #5 -   Sep 7, 2005
  6. Brian HCM#1

    Brian HCM#1 MMMMMMMMM BEER!!!!!!!!!!

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    It's possible, there is an inner sleave that holds the brake fluid, if that develops a crack/tear etc it will leak fluid and you'll never know it.
     
    #6 -   Sep 7, 2005
  7. snoopz666

    snoopz666 Monkey

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    its the seals in the lever for the internals, exact same thing happend to me(HFX-9 front). my shop somehow :rolleyes: rigged mag internals for mine since they were out of HFX 9 internals, so was ever othere shop here(hmmmm.. i wonder what this means) . works prety good now, but my new hope is much better. if its the internals then its gunna be about 35$ but it could just need a good bleed.
     
    #7 -   Sep 7, 2005
  8. bballe336

    bballe336 Turbo Monkey

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    i have had lots of problems with my hayes this season too. when they work they are great, but they dont seem to want to work very often which is too bad because they feel really good and stop very well when they work.
     
    #8 -   Sep 7, 2005
  9. haromtnbiker

    haromtnbiker Turbo Monkey

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    But if oil is leaking from the brake line, where does the oil go???
     
    #9 -   Sep 7, 2005
  10. snoopz666

    snoopz666 Monkey

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    the line that you see is just a protector, theres a line inside of the line that you see that actually has the fluid in it. it could break and you would never see any oil.
     
  11. ohio

    ohio The Fresno Kid

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    It's probably a tear in the bladder in your master cylinder. I did the same thing to my HFX-9s. Hayes sent me a new bladder, no questions asked. First check the hose like Brian suggested... fluid CAN leak into the outr sleeve. Then bleed the brakes. If you still pull to the bar, it's that bladder. Easy fix.

    By the way, problems of ANY kind are super rare on Mags, so I wouldn't give up on those brakes yet.
     
  12. Brian HCM#1

    Brian HCM#1 MMMMMMMMM BEER!!!!!!!!!!

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    Just junk the Hayes and BUY HOPE!!!!!! :D
     
  13. ChrisRobin

    ChrisRobin Turbo Monkey

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    I believe that 'oil in the hose liner' bit.

    My rear brake feels a little sluggish compared to the front and I'm pretty sure it's because of a kink in the back. I can sometimes here a slight hissing sound...must be air getting into the part of the hose that holds the oil.
     
  14. haromtnbiker

    haromtnbiker Turbo Monkey

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    So, should I just take the bike to my lbs and see what they can do? Or should I just try bleeding the brakes first, which sounds like a better idea?
     
  15. zmtber

    zmtber Turbo Monkey

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    yeah i think it is the brake line or maybe you just don'thave the levers far enough out, i not sure but i know my hayes go almost to the bar before working somedays and someday they activate right away