proportioning valve "set up"

[frank rymas]

Just replaced my rear brakes, calipers,pins,pads. Saw the proportioning valve threaded rod is loose, the rear calipers don't always release.My manual does not show how this thing is set up. The rod has a bushing and one spring still on it. Any help on what is missing and how I should set it up? Thanks

 

[sdpatt]

With the rear suspension lifted above the normal ride height, the rod will be quite loose. The bushing should be positioned so that at the normal, unloaded ride height, there is about 1 cm of rod between the nut on the end of the rod and the pivoting bracket. This distance can be adjusted to create more or less braking power at the rear as the ride height changes.

 

[AutoXSHO]

Remember that this "valve" is really more of a switch than a valve. Either the valve is letting full fluid flow to the rear brakes or it is letting a fraction of that flow to the rear brakes. There really isn't any range to it. You can see why if you push and pull on the limiting pins with the suspension all the way down when the car is in the air. They move a couple millimeters, maybe.

John V