Front Brakes W/ABS Dragging
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Club Member
Joined: Aug 2008
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From: In the flatlands!
Front Brakes W/ABS Dragging
On my 09 SG with @30k miles I've noticed here recently a swishing coming from my front brakes. I removed the calipers from the rotor, removed the pads and cleaned everything up with brake cleaner and put them back on. I still have the swishing. It did seem like the right caliper was to tight after applying the brake. I do not get the pulsing as if I have a warpt'd rotor. I did notice the right inside pad has worn down twice the depth compared to the remaining 3. Coming home this morning (about 2 miles) I stayed off the front brakes. After I pulled into the garage I reached down to feel the rotors and yes the right rotor with the inner pad wearing faster was very warm to the touch with the left side feeling normal (no heat). What is keeping the right caliper from backing off slightly after applying the front brakes?
Any help appreciated.
Any help appreciated.
Last edited by karbar99; Jul 1, 2011 at 03:17 AM. Reason: ...
Tourer
Joined: Aug 2008
Posts: 438
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From: Kamloops BC
To be honest I've never looked real closely at the calipers, but I assume they have pistons on both sides. My guess is the piston on the inside is hanging up in the bore slightly and not fully retracting upon release of the brake lever.
Could be some road grime or a buildup of brake dust etc is creating the problem.
Could be some road grime or a buildup of brake dust etc is creating the problem.
Road Captain
Joined: Jan 2009
Posts: 739
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From: St. Louis
The procedure for cleaning HD brake calipers is listed here: http://www.lyndallracingbrakes.com/service_tech.htm
Hope this helps.
Hope this helps.
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From: In the flatlands!
Here's what I found out when I removed the caliper again.
The only way the inside pistons would retract is if you cracked the bleeder while depressing in on the inside pistons. Other than that the pistons worked smoothy.
Anyone know what would cause this, that is for the pistons not to back off a little once the brake lever was released??
The only way the inside pistons would retract is if you cracked the bleeder while depressing in on the inside pistons. Other than that the pistons worked smoothy.
Anyone know what would cause this, that is for the pistons not to back off a little once the brake lever was released??
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Joined: Aug 2008
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From: In the flatlands!
Found the problem, maybe?
I believe I found the problem. As I was jacking the bike up I heard a clunk so I proceeded to start shaking everything in the front and noticed I had a bad wheel bearing. This was causing the rotor to lean in the caliper just enough to give it the swishing sound as it would rotate with just a slight possible warped rotor and the inside pad was rubbing causing it to wear more that the other 3. Anyways we will see once the bearings are replaced.
Last edited by karbar99; Jul 2, 2011 at 01:29 PM. Reason: ...
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