
Originally Posted by
DeVer
I've researched many posts on this issue but haven't found what I'm experiencing. Yes, my rear caliper is keeping pressure on the rotor causing wear on the rotor, and heat, a lot of it. The rotor has worn where the pads make contact with it, both on inside and outside of rotor. I just replaced pads with EBC HH. I've flushed the system, bled it several times with fresh fluid, and it still doesn't release all the way. I've jacked the bike and spun the wheel and it turns but with resistance. After using the rear brake, the calipers don't release and stay solid (no movement). I've greased the sliding pins under the boots (the original grease still looked good but I put a little more in there). One thing that I don't know is, when I have the caliper off, and the brake line is still attached, as I pump the pedal the pistons do NOT extend simultaneously. One moves out, then the other. Back and forth. Shouldn't they extend evenly at the same time? Is there a check valve in the master cylinder that may not be relieving all pressure back into reservoir? I've pumped the pedal to put pressure on the pistons and cracked the bleeder ports to see if pressure was on the line. Nothing squirted but it did seep out after a few seconds. This is more than new pads making contact with the rotor. It's that PLUS its holding them tighter with pressure. Not full-blown pressure like I'm pressing on the pedal, but a lessor degree than that. It's on 07' with 40,000 miles. Thanks a lot!