Rear brake locked up!

Mick · Aug 16, 2013

SpikingJC said:
I'll read through all the posts and learn as much as I can before the replacement unit arrives. Lot of time....

dduelin · Aug 16, 2013

The movement of the SMC clevis is a few millimeters. It doesn't move much at all when in good condition.

SpikingJC · Aug 17, 2013

Mick said:
JC, Below are a bunch of links I read and saved ....

OMG! That's a lot to read.

I do have a "what would you do?" question for everyone.

My bike is and '04 with ~11000 miles. The brake fluid was replaced last October, but all the pads are still the original and good amount of life left. I've already decided to replace the front pad while replacing the SMC. Would you replace the rear pads as well? If yes, what are the parts I should replace as well?

I read the crush washers should be replaced, anything else? I'm planning on giving the caliper a good cleaning as well.

Thanks in advance!

SpikingJC · Aug 22, 2013

It turned out the SMC is perfectly fine. The piston behaves exactly like a new one. I know, because I received the new one today. The problem was traced to the rear caliper stopper bolt backing out completely. See:

https://www.st-owners.com/forums/sh...uter-pistons&p=1657100&viewfull=1#post1657100

Since I already got the new SMC, it'll go in and I'll have a backup when needed.

If all that has happened was a waste of time chasing after the wrong problem, at least I got to learn about the braking system pretty well.

Thanks to everyone for your input.

Tom Mac 04a · Aug 23, 2013

My question is how does the stoppe bolt back out? Or, is it that it wasn't tightened...

Rear brake locked up!

Mick

dduelin

Tune my heart to sing Thy grace

SpikingJC

SpikingJC

Tom Mac 04a

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