[Shotimes] Question on brake proportioning valve

[Ron Porter]

No problem at all. A couple of us did the "Zip-tie the valve open" trick for
awhile. I then got the proportioning valve plugs, which does the same thing.
Well, actually I believe the plugs allow a bit more flow to the rears with
the valve mechanism out of the way.

Ron Porter

-----Original Message-----
From: shotimes-admin@autox.team.net
[mailto:shotimes-admin@autox.team.net]On Behalf Of Tom Leeth
Sent: Thursday, April 03, 2003 1:15 PM
To: shotimes@autox.team.net
Subject: [Shotimes] Question on brake proportioning valve


When I work on the rear brakes on my SHO I usually use a floor jack to raise
the left rear suspension just enough to crack the proportioning valve so
that
I can easily compress the rear caliper pistons, assemble the pads, and do a
function test of the assembled calipers before I take the car off the jack
stands.  I recently replaced my noisy rear hub/bearing assemblies and this
time I just tied the proportioning valve in the fully compressed position
using a couple of nylon ties.  With the push rod lashed in the full up
position there is free brake fluid flow in both directions. If you set the
parking brake the wheels are locked and when it is released the wheels spin
freely.  The same is true if you have some one pump the brake to center
caliper travel.  As soon as the brake peddle is released the wheel spins
freely.

My question:  Is there any reason I can't just leave the proportioning valve
in the fully open position and drive the car that way?  Isn't this about the
same thing as installing the proportioning valve plugs that folks talk
about?

Tom Leeth
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