Re: Front disc brakes 1948 22nd Series - - - -

Posted by JWL On 2014/9/20 17:55:58

One infrequent poster here wrote about installing a disc brake kit on his 22nd series Custom sedan. In his words: "It was not a bolt on kit." He has not been here in a long time, but the brakes are on the Packard according my last conversation with him in Salado. Mike, you out there???

My 30-31 Model A hot rod was fitted with disc brakes to replace the drum type. A dual chamber master cylinder was also installed with the disc brakes. It still has the drum type on the rear. There is no power booster and the braking is easy and quick. There is a pressure regulator in the line to the rear brakes to prevent them from locking up. The rear drum type do not need the same pressure as the front discs. Usually in these disc-drum setups there is also a pressure residual valve on the line to the front brakes. The purpose of this is to maintain a small amount of pressure to keep the front pads at the disc rotor. My car does not have one of these. I simply push slightly on the brake pedal to first get fluid to the front cylinders. I have also had to stop suddenly and did not have a chance to pump the pedal. The result was the pedal went down just a little further than normal. The brakes functioned as they should. Others may have different experiences.

(o{}o)