Peoples,
Having some rear brake issues, after a big ride the pads were getting down and lost some feel so decided to replace the pads and fluid. Changed the pads out and the. Bleed the old fluid out until all the new had worked it’s way through. But I couldn’t get the pedal to firm up at all and the piston won’t move. I re-bleed again to make sure I hadn’t sucked air in by accident, I then bleed backwards using a syringe, still nothing. I’ve now pulled the whole unit off in one piece and bleed on the bench with the MC below the caliper to make sure any air goes up. Still getting no movement or pedel feel. I could hear what sounded like air passing through the MC when I was manually depressing, I also did notice an air bubble appear. I wondering if the main cause could be the MC not producing enough pressure and also sucking air in? Or is it the caliper? Should I look at replacing the line also?
Cheers in advance for the help.
Warren