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Re: Long brake pedal travel

To: "Navarrette, Vance" <vance.navarrette@intel.com>
Subject: Re: Long brake pedal travel
From: Bill <william.mcintire@wright.edu>
Date: Thu, 06 Jul 2006 14:43:12 -0400
Vance
Couple thoughts...

In Kas' first comp prep book he recommended a residual pressure valve in 
the line to the front brakes. Believe this was to prevent pedal loss 
from rotor wobble during cornering, but could also prevent 'leak back'.

And a real SWAG ...  Is it possible you tipping valve in the MC is not 
tipping (or enough) and preventing fluid intake from the resivour and, 
as a result, the MC in drawing fluid from the calipers?

Just thoughts
Bill   '70 6

Navarrette, Vance wrote:

>       Folks:
>
>       Here is a problem I have not seen discussed very much.
>
>       I have noticed that occasionally the first time I use the brakes
>in the TR6 I will get a long pedal travel before the brakes engage. This
>is most likely to happen if the car has not been driven in a week or so.
>       When I first use the brakes (generally while backing out of the
>driveway) I get a loud click that seems to be coming from the right
>front caliper, as if one of the pistons has just popped loose and
>smacked up against the rotor. After that first use, the brakes are
>great. Firm pedal, short travel, no noises. 
>       It seems like perhaps a piston is retracting too far back into
>the caliper. The first use of the brakes pushes it back out and life is
>good thereafter.
>
>       Anyone else had similar issues (it seems like someone has, but
>my memory is so dodgy any more)? Is there a cure, or is it simply a
>matter of learning to live with Lockheed brakes?
>
>       Thanks,
>
>       Vance




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