g49bridges
Well-Known Member
Hey guys, I need some advice. I've replaced my entire brake system on my 74 duster. Everything is new. New calipers, rotors, drums, wheel cylinders, and flex lines (factory parts from o'reillys), all new steel lines, new proportioning valve from yearone, and a new master cylinder/brake booster combo from cpp. bench bled the master and everything was fine. Put it on the car and after 3-4 pumps the peddle was firm....but will not release. all four brakes locked up. After sitting for 2 weeks while I was away for work, it finally released enough to move a wheel by hand....but still dragging. I pumped it again....same thing. Took the master cylinder loose from the booster thinking the pushrod wasn't adjusted right, but even when I separated them the brakes stayed locked up. Only thing I have done to successfully release the brakes was to crack open a bleeder on the rear wheels. Anybody know what the problem could be???