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Rear Brake Question.

Buellxb Forum

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bigrodge8

Well-known member
Joined
Oct 5, 2011
Messages
167
Okay guys so I have 12k on my 03 XB9SL and I just replaced the rear brake pads. I lubricated all the contact points where the pads touch the caliper and the caliper mounting bracket, as well as the threaded rod that retains the pads. I also got some 400 grit sand paper and lightly sanded the rotor and cleaned it with some brake cleaner. My issue is that I'm getting some low speed brake squeal from the rear brakes right after use them. I was also pulling in to my house last night so I put the bike in neutral and shut it down and tried to coast it into my parking spot but it didn't coast as far, and when I tried to walk it it was very difficult. So, I put the bike on the rear stand and found it tough to rotate the rear wheel. I pulled up on the rear brake lever and it alleviated the issue. Sorry about the long post fellas, any input would be appreciated.
 
Time to disassemble and clean the M/C and caliper? Brake dust on the caliper will cause them to stick sometimes, it works it's way into the seal and gums stuff up. Flushing the fluid will sometimes help, but I'd rather just do the job right myself.
 
^^^ good call ... That's a trickey one. I'd sat it'd have to be in the M/C bit could be a caliper issue also. Hopefully this has happened to someone else and they chime in soon. Free bump
 
Yes rebuild the master cylinder and caliper. Not real real difficult. Compressed air works well to get the pistons out of the caliper.
 
all excellent advice and you clearly have the mechanical eptitude to handle the job correctly from the sounds of your initial post. 2 things i would add:
1-very very lightly hone the inside bore of both the master cylinder as well as the caliper bores. even scotchbrite and brake cleaner will work in a pinch.
2-closely check the return bleed hole in the master cylinder when you have it disassembled. it is very tiny hole along the bore that allows excess fluid and pressure to bleed back to the remote reservoir. often times it is clogged and causes brake drag.
 
Compressed air works well to get the pistons out of the caliper

it does indeed but keep your fingers away from the pistons when doing this and wear safety glasses. they can come screaming out of the caliper which generally causes alot of swearing, throwing of tools, and trip to the ER.
 
Yeah I wrapped the caliper snug in a towel then applied the compressed air, that way no flying pistons lol. Worked well.
 
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