Bleeding Brakes

I have a 69 Cuda w/power disc. I was trying to bleed them and the secondary prop. valv stops the fluid from going to the rear. The only cars that that came on is power disc. I was wondering if I had to have the car running to bleed this set up. It is not ready to start yet I was just just trying to get the brakes right. Anyone run into this problem? Thanks


It helps to have the car running only by making the brake pedal easier to push down. It sounds like the spool valve (if that proportioning valve is using one) is stuck, the ports in the valve could also be blocked. Also if the master cylinder brake rod is not coming back far enough it won't open the ports within the cylinder and let oil in for the rod to push.