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AAARRRGGHH, Master cylinder rebuilt, Airpack & slave cylinder rebuilt, added remote reservoir, and pressure bled system. Nothing, nada, nunya, pedal still goes to the floor. I had massive amounts of air at the wheel cylinders, but finally got straight fluid under pressure. But still no pedal...

I had my suspicions, but love getting expert knowledge. I can't wait until I get up tomorrow (working the vampire shift) so I can tear into the rebuild.

I'll have to double check that one, but, I think it is coming from the vent line. Can't hurt to rebuild since I have the kits.

Dog, you are one of the members whose opinion I value. So, a bad/leaky airpack could backfeed pressure into the MC? The rest of my braking system appears to be in good shape. I even debated rebuilding the MC, because I had it out and apart about 2 months ago and it was clean and smooth as a...

Yeah...rebuild of the airpack is on my to do list tomorrow, and the MC too, already have them out and sitting on my bench. Hmmmm, the sintered vent almost makes sense if it is clogged would have to releive any pressure somewhere...like into the MC. I am just supposing, because it really doesn't...

I'm thinking about adding a remote reservoir in the cab, I saw a thread on here about it once. The pressure seems directly related to the pressure in the air tanks. I intentionally left the fitting on top of the MC loose and I could hear it hiss even after the motor was shut down. That is why I...

The vent line to the master cylinder on my 71 deuce is pressurizing instead of venting. It has caused my 6 month old MC to constantly leak. I have a kit to rebuild the MC and a kit for the air pack. Am I heading in the right direction with this? What is supposed to be at the vent end of the line...