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  1. #1
    CT3
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    how to completely flush the fluid out of brakes.

    i think i bled my brakes with fluid that may have been contaminated with water. how do i flush out all the old fluid. on my avid brakes

    options:
    bleed them by pushing alot of the fluid during the line bleed phase?
    suck out all the fluid dry?

  2. #2
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    Quote Originally Posted by CT3 View Post
    ...bleed them by pushing alot of the fluid during the line bleed phase...
    ^^^ This would be my choice.

  3. #3
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    Quote Originally Posted by gmcttr View Post
    ^^^ This would be my choice.
    +2, Can you see the water separate from the oil or is the fluid milky??? Regardless, I'd keep flushing the system with new fluid...

  4. #4
    007
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    I just did this on my Hopes (unintentionally) . . . I was watching TV as I bled the system and realized that I sent about 3 oz. of brake fluid through. You can tell because the fluid coming from the bleed port was nice and clean.

  5. #5
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    Just flush the system with excess fluid.

  6. #6
    CT3
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    Got it thanks for the info
    Last edited by CT3; 09-27-2011 at 11:18 PM.

  7. #7
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    I drained my system, unscrewed the hose from the lever and blew it out with a compressor. Not really necessary, but I had just opened a new bottle of fluid and didnt want it mixed with old water logged fluid.

    Pushing fluid thru the system is acceptable but thats a bleed, not a flush

  8. #8
    CT3
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    Quote Originally Posted by bing! View Post
    I drained my system, unscrewed the hose from the lever and blew it out with a compressor. Not really necessary, but I had just opened a new bottle of fluid and didnt want it mixed with old water logged fluid.

    Pushing fluid thru the system is acceptable but thats a bleed, not a flush
    thats what im thinking, wouldnt that leave some residual fluid behind?

    is it bad to dry out the system? cant imagine it would but always worth checking

  9. #9
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    Bleed = removing unwanted air
    Flush = removing unwanted fluid

  10. #10
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    I just did a flush/bleed after installing some new Clark sintered brake pads on my Avid Juicy 3's. The play is fine, but their is a delay between when I squeeze and when the brake engages. Additionally they don't seem to be fully engaging when I squeeze: the wheel will still turn even while I'm gripping with full force (it will fully lock after a second or two of gripping, but it's way too long of a delay)

    The brakes seem to be centered well, so I'm left wondering if I screwed up:
    1) the instal of the new pads
    2) Flush/bleed
    3) all of the above

    Any advice would be greatly appreciated. I use the bike for daily city riding and don't feel too safe with the couple second delay between my squeezing the brakes and the time to final stop.

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