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Offline Kowalski

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Rear brake pads wearing weird and dragging.
« on: July 09, 2018, 05:07:54 PM »
So i installed some new EBC HH pads less than a 1000km`s ago and i had an issue with them binding. I ran them for a while and they got better. The caliber piston seems to move ok in the bore but certainly can't be pushed in by hand as the manual states. They still drag when i move the bike backwards.

Nor being happy, i have removed the pads for inspection..see pics. The inner pad has worn incredibly uneven. Could this be an alignment issue of some sort or a partially seized piston? Bike is a 2011 with 84000 kms on it. The swing arm has taken a hit in the past and broke the bobbin mount off.

Offline Rtwo

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Re: Rear brake pads wearing weird and dragging.
« Reply #1 on: July 09, 2018, 05:13:57 PM »
Mount the caliper back on without the pads and check that it's running true to the rotor in all planes

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Offline Kowalski

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Re: Rear brake pads wearing weird and dragging.
« Reply #2 on: July 09, 2018, 05:26:39 PM »
Ok will do. What could cause mis alignment of the caliper?

Offline Rtwo

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Re: Rear brake pads wearing weird and dragging.
« Reply #3 on: July 09, 2018, 05:46:06 PM »
You mentioned that the swingarm took a big hit, there could be something there as a result.
Is the tyre wearing evenly?

The party told you to reject the evidence of your eyes and ears. It was their final, most essential command.
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Offline Kowalski

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Re: Rear brake pads wearing weird and dragging.
« Reply #4 on: July 09, 2018, 06:40:47 PM »
Yes the tyre wears even . I don't think it has anything to do with the swingarm as the bike handles fine. I think the inner pad is binding up in the caliper somehow as the outer pad looks fine.

Offline Paulhere

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Re: Rear brake pads wearing weird and dragging.
« Reply #5 on: July 09, 2018, 09:08:06 PM »
Possible corrosion in the dust seal groove forcing the seal tight onto the piston & restricting its movement.
Current bikes Tiger800 XRx, Tiger Sport 1050, Ariel FH 650, Yam Serow 225.

Offline Kowalski

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Re: Rear brake pads wearing weird and dragging.
« Reply #6 on: July 09, 2018, 09:17:02 PM »
Yes the piston is tight to push in. Are service parts available?

Offline Paulhere

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Re: Rear brake pads wearing weird and dragging.
« Reply #7 on: July 09, 2018, 09:22:44 PM »
*Originally Posted by Kowalski [+]
Yes the piston is tight to push in. Are service parts available?


Looks like they are, check model/year

http://www.worldoftriumph.com/triumph_motorcycle_parts_locator?block_01=&block_02=100057460-3-2&block_03=560031


Current bikes Tiger800 XRx, Tiger Sport 1050, Ariel FH 650, Yam Serow 225.

Offline Stevie.P

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Offline Kowalski

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Re: Rear brake pads wearing weird and dragging.
« Reply #9 on: July 10, 2018, 05:51:34 AM »
Thanks, looks like square deals are a bit cheaper. Going to check locally (BC Canada) and see whats available at the dealer . Shipping costs and duties are a bugger.

 


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