grinding rear end noise - Page 2 - Triumph Forum: Triumph Rat Motorcycle Forums

Air Cooled Twins Technical Talk Technical Talk for Hinckley Triumph Twins: Bonneville, T100, Speedmaster, America, Thruxton, and Scrambler.

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post #11 of 16 (permalink) Old 12-11-2012, 03:59 AM
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Originally Posted by mikeinva View Post
The bearing in the rear sproket hub give alot of trouble on these bikes
My rear sprocket bearing went in the first couple of hundred miles. Done under warranty, fortunately.
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post #12 of 16 (permalink) Old 12-11-2012, 03:07 PM Thread Starter
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Rear brake
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post #13 of 16 (permalink) Old 12-11-2012, 09:56 PM
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macca47
What was wrong with it?????

KLEM KADIDDLEHOPPA

2012 Triumph Bonneville T100: NH Togas, AI Removed, 02 Sensors Removed, TTP Breathe Cover, DNA Filter TTP Tune 3,Bitwell Tracker Bars, CRG bar end mirrors, D9 gauge brackets, Burton DSOO3 seat.
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post #14 of 16 (permalink) Old 12-12-2012, 12:35 AM Thread Starter
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Pads were very badly worn , only 5500 km also the piston is quite slow to retract so pads are on order and ill take the caliper off tomorrow and pull it apart to see what i can find
cheers
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post #15 of 16 (permalink) Old 12-12-2012, 04:08 AM
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Because of the position of the caliper they get covered in crap and it's not unusual for the piston to become a bit sticky or even seized, hence the tendency to eat rear pads on occasions.

Paul.

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(Previously Ducati Monster S4 and several UJMs)
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post #16 of 16 (permalink) Old 02-07-2013, 11:03 PM Thread Starter
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the final update on this saga
rear disc replaced
rear caliper overhauled with new pistons [ scuffing marks on old ones] new seals fitted
new brake fluid
new pads [ metal gear]
and still the grinding noise would come and go so today i fitted genuine triumph brake pads [actually SBS] and on measuring both sets found the metal gear pads were 1mm thicker so no wonder the pistons would not retract all the way in as there was an extra 2 mm of brake pad to compensate for !
oh well its all good now and a lesson learnt
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