<VV> Fwd: dual M/C

[Dennis Pleau]

I'm sure the OEM system on 67 and later worked.  I don't believe many of the
retrofits work.  When I asked people to test their systems, I asked it be
done under high pressure.  Opening up a bleeder and hitting the pedal hard
should simulate a blown line.  Pressing lightly may not.

do
-----Original Message-----
From: virtualvairs-bounces at corvair.org
[mailto:virtualvairs-bounces at corvair.org] On Behalf Of Ken Pepke
Sent: Saturday, January 08, 2011 1:52 PM
To: virtualvairs at corvair.org
Subject: <VV> Fwd: dual M/C


Is the bleeder screw test valid?  Would it be possible to press the pedal
down gently enough that the slider valve does not slide?  When my 63, with
the 67 MC including the side block switch / valve assembly, lost a wheel
cylinder it made the brake pedal high and hard.  That is, the brakes took
twice as much force on the pedal to stop the car and the pedal traveled a
very small amount.  I drove that car on the front brakes for quite a while
... until somehow I got the slider back to the middle.  I took that brake
assembly off an old car so I do not know for sure that it was a original
factory assembly. 

Why would GM / Chevy add the extra expense of the dual MC if it did not do
for the Corvair what was advertised to do for their other models?
Ken P