Hi all. Driving myself crazy.

1969 442. All drums.

I have replaced all brake lines, hard and soft, dist block and booster and Master Cylinder.

Cannot drive the car as the brake pedal goes straight to the floor.

I have tried bleeding the old fashioned two person way and I have bled it three times now using the pressure bleeder that connects to the wheel cylinder and pushes fluid up to the Master Cylinder. (This one here on Amazon)

Any ideas?
I will start the car and push the pedal about a dozen times and look underneath and I can’t seem to see any leaks.

I don’t think the issue is the pushrod from the booster to MC since I can see fluid being pushed up at roughly half pedal.

 

Make sure your brake shoes are correctly adjusted. Must be a slight drag on the drums.

 

I haven’t messed with the drums. I’ll check them.

 

If the pushrod is too long, the piston in the M/C won't move back far enough to uncover the compensating port that allows fluid to fill the lines properly.