I have a 1967 Chevrolet Camaro with manual drum brakes on all 4 wheels. Standard transmission with 250 cu in 6 cylinder engine. Approximately 101200 miles. Problem: Brake pedal goes next to floor before getting some braking action on rears and no action on the fronts. Have replaced the master cylinder several times with different well known auto supply store new units. New lines. New brake wheel cylinders installed several times on all wheels. New brake pipe distribution block/switch assembly (brake safety switch is located in this block). Bled the master on each installation. Lines bled good and confirmed with Monroe store that they were free of air and who just scratched there heads on this one. New shoes (up-grades to Bendix). Have double checked the clevis pin location to make sure it is in the right hole in the pedal assembly. Have checked several times to make sure the rod is seated in the deep socket master cylinder and that I have 1/16 to 1/4 inch free play as the spec call for. Dash brake light is on indicating there is a pressure imbalance in the system but I can't find it.
Sunday, October 28th, 2007 AT 11:13 AM