I have a 1946 ford Tudor that has 'old school' looks but has been modified with modern safety in mind. The SBC/ 350 trans runs like a jewel but the car stops like shit. I have new rear wheel cylinders, new rear metallic shoes/drums, a new master and booster, check valves ec, new rotors, calipers and metallic pads. Yet the car does not stop quick enough. The master cylinder input shaft has been adjusted properly, and I bled the brakes until I am blue in the face. The pedal is soft, but gets better if you slowly pump the brakes. I have driven it carefully about 400 miles and the brakes do not allow any margin of error. Plan ahead is my motto. What am I missing guys?? I want to take it to the 'hunnert' but it has got to be better than this, that's a 3.5 hour ride for me. Kermit
what are the bore sizes of all the parts? what did they come from? you might have a mismatched system.
Hmm -- I'm assuming this is all new fluid . . . it still sounds like an air problem in the system. Mine was doing that . . . pedal was soft, I could pump it multiple times and it would firm up, I went back and re-bled things and finally got firm pedal. I even changed my rod-pedal ratio back to the stock (6:1 vs. 5:1) . . . I had drilled a new position in the thing. I'd check for a leak or bad bleeder somewhere . . . somethings not right somwhere. (Duh . . LOL)
You did bench bleed the master before installing it right? Could be a bad m/c even though it is new. Not the first time that would have happened. Bill
Ding Ding...the free cigar goes to Myoldbuick. A bad bleeder. We now have brakes and we will be scootin to the pileup. Thanks to all HAMBers who replied and made me think/check further. Kermit