I think I have finally discovered why the piston is freezing in the cylinder. If you know anything about the innards of a brake caliper read on and tell me what you think.
I took the piston out and then tried to lubricate everything just to see if I could get it back in and if that would solve my problem. It didn’t work. So I finally took the piston apart and took the threaded sleeve out of the center of it to see if the threads were screwed(no pun intended) up. The sleeve threaded on perfectly and smoothly with the screw in the center of the caliper. So I used some q-tips and cleaned out any debris or dirt that were on the cylinder walls and tried to get the piston to fit into the cylinder without the inside parts of it, you know just to see if it would slide in and out. Well it wouldn’t go in at all. So I finally took out the o-ring at the top of the cylinder and what do you know the piston slides in and out just fine. I put the o-ring back in and it won’t go in at all. Sooo, tomorrow I go to the acura dealer and hope that they have an o-ring and a new boot for the cylinder for me.
Does it sound like that could be the problem? I discovered a small crack in the boot and I’m thinking that the o-ring must have dried out or whatever and thus not allowing the piston to move around like it should be able to. Please some one tell me I’m on the right track. Thanks for reading. And doesn’t it just figure it would be a part that only costs a few bucks that would be causing all the trouble??