<VV> Brake woes

Dennis Pleau dpleau at wavecable.com
Sun Jun 27 18:45:40 EDT 2010

The push rod between the pedal and the piston in the master cylinder is too
long.  Most of them are adjustable.


-----Original Message-----
From: virtualvairs-bounces at corvair.org
[mailto:virtualvairs-bounces at corvair.org] On Behalf Of wsan159401 at aol.com
Sent: Sunday, June 27, 2010 3:19 PM
To: virtualvairs at corvair.org
Subject: <VV> Brake woes

I have recently installed a dual master cylinder in my 1965 Corsa and am
having a problem with the brakes. They work too well! I have only driven the
car twice since the install. At the same time I also added steel braided
brake lines to replace the original old rubber ones and Kevlar lined shoes.
The second time I drove the car, as I was returning home, I noticed that it
was getting harder and harder to get the car moving from a stop. Eventually
the brake pedal would not depress as it seemed to be stuck in the totally up
position. I ended up trailering the car the last few miles home. When I got
the car up on stands the drums were very hard to remove. It seems that I had
assembled everthing correctly as I checked against a set of brakes from
another Corvair. However the front wheel cylinders were both leaking so I
replaced them with new units. After re-assembling everything and bleeding
the system I tried rotating the hubs, without wheels on them, and had a lot
of drag. I ha
 d done the hard/harder test to make sure there was no leakage prior to
spinning the 
drums. Because of the drag I pulled the drums off again, with difficulty. At
that point, I noticed that the top of the shoes where were not in contact
with the pivot pin and I could not push on the shoes hard enough by hand to
cause the wheel cylinder pins to to retract into the wheel cylinder. It
seems that there may be something in the master cylinder that is not
allowing the fluid to return into to master. Anyone have any experience like
this or some good ideas for me to follow up on?

Bill Sanders
Silicon Valley CORSA

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