Hey ManInTheJar,
Thanks for the reply. So I was finally able to get back to this, this weekend. I got the pistons moving. Unfortunately, I did get air in the line. So I bled them the old fashioned way. I got a tube, a empty water bottle with some brake fluid in it and I flushed two reservoirs worth of fluid through to be safe. road the weekend and it felt fine. I just had it out on a lunch ride though and I felt the pedal stick again. this is also causing the rear brake to stick. I took some videos (attached below). It almost looks like there is something wrong with the piston attached to the pedal itself.
In video 1,
you can see when the pedal is depressed, it doesn't move perfectly straight up and down. It has a horizontal motion to it. I wasn't sure if that's normal.
Video 2 is an excerpt from video 1.
you can watch the piston go down as the pedal is pressed, it comes back up, and then I pull up on the pedal to bring the pedal all the way back up and you then see the piston come back down. This little bit of sticking is what is locking the rear brakes on me
video 3
you can see play in the brake pedal itself.
anyone every experience this? I'm working with the Mark Barrett's service manual and he references bleeding the brakes using the tiger tool. Its not clear if this is a requirement or just the technically correct way to do this? I can't think of a reason bleeding the brakes using the classic method would fail, but all the same, could that cause the problem?
Thanks again everyone