The rear caliper was a little bit of a challenge. As I disassembled it, I discovered the piston was stuck and just would not budge, even if I shot compressed air into the bleed screw hole. I did manage to finally get it to move a little bit so I filled it up with fresh fluid and let it sit, hoping the fluid would lubricate the piston and seal/o-ring and help me out. I initially considered polishing the entire caliper, but after mulling it over for a bit, I thought would look better "half 'n half" so I polished the parking brake block and lever and planned on painting the caliper itself.
After polishing the parking brake hardware, I tried to remove the caliper piston again. This time I cranked up the compressor to about 90 psi and tried again. Of course, the piston popped right out - at about a zillion miles an hour. Normally this wouldn't have been an issue because the piston would have been stopped by the outboard part of the caliper. Unfortunately, my finger was in the way and the piston was stopped by flesh and bone. Felt like someone whacked me with a friggin' hammer. After the cursing subsided, I managed to get the caliper fully disassembled and bead blasted then went and had a cold one to ease the pain of my throbbing finger.
All images copyright Kevin A. Spousta. Unauthorized use is prohibited
After polishing the parking brake hardware, I tried to remove the caliper piston again. This time I cranked up the compressor to about 90 psi and tried again. Of course, the piston popped right out - at about a zillion miles an hour. Normally this wouldn't have been an issue because the piston would have been stopped by the outboard part of the caliper. Unfortunately, my finger was in the way and the piston was stopped by flesh and bone. Felt like someone whacked me with a friggin' hammer. After the cursing subsided, I managed to get the caliper fully disassembled and bead blasted then went and had a cold one to ease the pain of my throbbing finger.