No Breaks

[rusty70cuda]

HI all just a few questions about my brakes. My project is a 1973 RR with manual disc brakes. I have a rebuilt m/c which I bench bleed. Rebuilt calipers,new front brake hoses, new rear wheel cylinders. I have been bleeding for 2 days now and need to drive this car to work. I can pump up a good pedal and bleed any bleeder and get solid fluid then try the pedal and it goes to the floor. I have tried loosening the fittings on the P valve to bleed it. still the same story. IT will pump up in 6-10 strokes but will go to floor on next try. Help me please. Steve

[Bullitt-]

I was having similar problems & found that the rear drums needed to be adjusted tighter. There are access holes in the backing plates for a brake spoon, a flat blade screwdriver can work, to rotate the adjuster. 

[72cudamaan]

Your M/C is leaking internally. Did you push the piston all the way in when you bled the m/c?
If so, you damaged the seal inside. The normal travel in the bore stays clean, but when
the piston goes in farther it meets up with a damaged bore that the rebuilders either can't fix
or don't bother. Only push the piston in as far as necessary to get air to come out into the fluid reservoir.

[Cuda Gooding]

^^^ What he said.

[tman]

Yep, I agree