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Thread: moody hayes 9s

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    Senior Member taylor p's Avatar
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    moody hayes 9s

    I have a friend with a set of hayes nines that have been nothing but a pain in the butt. First off they were rubbing bad and even after you shimmed the pads apart they would go right back to rubbing so I decided to go ahead and bleed them. Some how that worked for awhile but then it was back to where we started. The bike was a 2002 which had been ridden all year around on roads with lots of salt so I thought it would not be a bad idea to rebuild them and they definitely needed it. The seals were all pitted and after i replaced them along with pistons the breaks are allot better but they still rub and i cant seem to get the front brake to have an even lever feel as the rear (front pulls closer to the bar than rear). the only thing that I could think of is that the brake tabs need to be faced (I can get the pads to have good clearance when I am just holding the caliper with out it tightened down but when I tighten it down it rubs on one corner). I just can't figure out why this specific set of brakes gives me so much grief when i have adjusted juicy 7,3,5 and other sets of the nines without problems?

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    Senior Member rankin116's Avatar
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    Quote Originally Posted by taylor p View Post
    I have a friend with a set of hayes nines that have been nothing but a pain in the butt. First off they were rubbing bad and even after you shimmed the pads apart they would go right back to rubbing so I decided to go ahead and bleed them. Some how that worked for awhile but then it was back to where we started. The bike was a 2002 which had been ridden all year around on roads with lots of salt so I thought it would not be a bad idea to rebuild them and they definitely needed it. The seals were all pitted and after i replaced them along with pistons the breaks are allot better but they still rub and i cant seem to get the front brake to have an even lever feel as the rear (front pulls closer to the bar than rear). the only thing that I could think of is that the brake tabs need to be faced (I can get the pads to have good clearance when I am just holding the caliper with out it tightened down but when I tighten it down it rubs on one corner). I just can't figure out why this specific set of brakes gives me so much grief when i have adjusted juicy 7,3,5 and other sets of the nines without problems?
    I have said the same things in multiple threads. I was able to fix the problem by buying different brakes.

  3. #3
    ed
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    Quote Originally Posted by taylor p View Post
    ...i cant seem to get the front brake to have an even lever feel as the rear (front pulls closer to the bar than rear). the only thing that I could think of is that the brake tabs need to be faced
    The uneven lever pull could be due to a couple of things.

    1. There is air in the line and it needs re-bleeding.
    2. The auto adj isn't consistant. You could take the wheel out of the end that bottoms out later, squeeze the lever just enough to get the pads to adjust inward but not so much as to cause the pads to touch eachother. You could also try preloading the system a tad with a syringe and some brake fluid. I did it with my Juicy 5's. Inject a tad more brake fluid and it brings the pads closer.


    Either way, it has nothing to do with facing. That's just the "angle of contact".
    Last edited by ed; 10-21-08 at 10:24 PM.

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    use your best eye kenhill3's Avatar
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    What I have done with Nines is this:

    Usually when adjusting (centering) the caliper on the rotor you simply squeeze the pads together and tighten the caliper mounting bolts while doing so. When I've had a pad continuing to rub after doing this over and over a few times, I do it again with a business card (or two) between the offending pad and the rotor. Seems to work.
    "I tell you, We are here on earth to fart around, and don't let anybody tell you any different." - Kurt Vonnegut jr.

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