I instaled a new rear brake cylinder. The old one had a worn boot that let
moisture in and caused it to burst. I also put on new shoes and machined
the drums. The problem is, the rear system appears to have ran dry of brake
fluid. I am unable to get any fluid to the back wheels by pumping the pedal,
so i cant bleed it. The e-brake works fine.
Is there a valve somewhere on the system that closed, to protect the front
brakes, after the rear brakes failed?
> I instaled a new rear brake cylinder. The old one had a worn boot that let
> moisture in and caused it to burst. I also put on new shoes and machined
[quoted text clipped - 4 lines]
> Is there a valve somewhere on the system that closed, to protect the front
> brakes, after the rear brakes failed?
It's the combination/proportioning valve. It sounds like it's
working as designed.
The brakes are seprated by pront and rear circuits. But are
"connected" at the valve. If one circuit should happen to lose
pressure, the valve shuttles over and closes off that circuit, so you
don't lose all your fluid. That should also cause the brake light in
the dash to light.
You have to reset the valve, so the shuttle is in the center again.
Unfortunatly, the factory service manual doesn't explain how to do this.

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1997 HD FXDWG - Turbocharged!
2001 Dodge Dakota QC 5.9/4x4/3.92
1983 GMC Jimmy - Mountain Beater
1966 Mustang Coupe - Daily Driver
1966 FFR Cobra - Ongoing project
maxpower - 31 Oct 2004 11:24 GMT
not sure but they may be diagonally split
> > I instaled a new rear brake cylinder. The old one had a worn boot that let
> > moisture in and caused it to burst. I also put on new shoes and machined
[quoted text clipped - 14 lines]
> You have to reset the valve, so the shuttle is in the center again.
> Unfortunatly, the factory service manual doesn't explain how to do this.