Looking for tips on debugging brake problem
I converted by '68 from drum-drum to disk-drum using all new parts. Original style '69 single pistons, new M/C, and new proportioning valve with the switch built in. Here's the problem. I've vaccuum bled them several times and I'm still getting air problems. The brake light (from the switch in the proportioning valve) is coming on intermittantly meaning one side isn't holding pressure.
There are no leaks and the M/C is staying full. If I slam on the brakes the nose dives, so the fronts are working. Any suggestions on what to try next or tricks you've used before?