mac79
newbie
Reged: 13/04/2008
Posts: 32
Loc: highlands,scotland
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Hi guys,
I'm at the end of my tether with my rear brake ('08 XT),i have a vibration and the most terrible noise under light gradual braking,worse when hot,so far i have cleaned and refaced the pads, cleaned the calliper and disc reset calliper pistons,recentred calliper to disc,ive spoken to a few guys who thought it sounded like contaminated pads so i changed them....no difference.
Any ideas ??? 
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NogintheNog
stranger
Reged: 04/05/2009
Posts: 20
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Try getting the disc mounts faced at your LBS, maybe they are slightly out of alignment and this can cause unecessary vibrations to set in.
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Sir_Queuesalot
Carpal \'Tunnel
Reged: 05/12/2007
Posts: 5259
Loc: Send more snow!
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Have you re-torqued the rotor mounting bolts?
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mac79
newbie
Reged: 13/04/2008
Posts: 32
Loc: highlands,scotland
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ive only checked the rotor bolts for security,im also sure there has been no impact damage to cause any alignment faults with the calliper???
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MTBLeague
Pooh-Bah
Reged: 23/05/2007
Posts: 1647
Loc: Moving again.
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Could be the rear wheels bearings are a bit loose, try wobbling it from side to side a bit, if it does then this may introduce some noise.
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The path of least resistance is easier to follow............ When you can see it.... .............
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mac79
newbie
Reged: 13/04/2008
Posts: 32
Loc: highlands,scotland
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No play in anything,really frustrating now,ive tried everything i can think of, does anyone have a solution???
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gtxxx
addict
Reged: 11/03/2008
Posts: 510
Loc: Scottish Borders
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Now please don't think I'm daft here as I dont have XTs, But, Is the tension spring between the brake pads there, or, in the right position?
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It's not the fall that hurts it's the landing!!!!!
I only fall off to get marks from those watching!!
Edited by gtxxx (16/06/2009 21:49)
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MTBLeague
Pooh-Bah
Reged: 23/05/2007
Posts: 1647
Loc: Moving again.
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Like wot I posted in the other one, there can be many causes, eliminate them one at a time if poss.
Are the pads by the same maker? tried swapping back to front?
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The path of least resistance is easier to follow............ When you can see it.... .............
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mac79
newbie
Reged: 13/04/2008
Posts: 32
Loc: highlands,scotland
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pads are standard shimano that came with the brakes,all spring retainers fitted correctly???
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