I picked up a dirt buggy go kart and the rear brake didn't seem to do anything, front two were fine. Noticed the brake pad was half on the disc and half (top area) off. In my mind it made sense it didn't work because pressure against the pad was angled so the piston probably got bound up.
Took it apart and welded the mount to a proper location to allow for the entire brake pad to make contact with the disc. Took the caliper apart and was able to slide the piston in and out with a little bit of force (worked on many automotive disc brakes so it's movement force was consistent with them). Put it all back together and bled the line but the piston does not want to move when the brake is depressed. From its current position it has movement room in either direction based on what I can manually move it.
Any thoughts? Maybe I still have air in the line somewhere so the line isn't pressurized enough? Fluid is coming out the bleeder valve so there is fluid movement from the reservoir to the caliper.
Thanks, Jason.
Took it apart and welded the mount to a proper location to allow for the entire brake pad to make contact with the disc. Took the caliper apart and was able to slide the piston in and out with a little bit of force (worked on many automotive disc brakes so it's movement force was consistent with them). Put it all back together and bled the line but the piston does not want to move when the brake is depressed. From its current position it has movement room in either direction based on what I can manually move it.
Any thoughts? Maybe I still have air in the line somewhere so the line isn't pressurized enough? Fluid is coming out the bleeder valve so there is fluid movement from the reservoir to the caliper.
Thanks, Jason.
Dual piston M/C, apparently I should have been bleeding each piston separately. Live and learn. Got a replacement, took the M/C apart and cleaned it up, drained all the lines, put everything back together and started bleeding. Now I have all 3 brakes working as expected. Thanks guys !