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Re: unbalanced urquattro braking



-----Original Message-----
From: Fluhr <ejfluhr@austin.ibm.com>
>
>The front brakes calipers are stock, the rear brake calipers are from
>a 1986 4000 quattro.
Do the 4000 callipers use the same amount of fluid as Ur-q ones? I'm
thinking that if they require more fluid to operate then the bias valve may
not be providing enough for them. I dont have any figures for the front/rear
brake bias but lets take this for instance: say that for a stock Ur-q for
every 5lbs pressure at the front brakes there are 4lbs at the rears. If the
4000 callipers need more fluid they may only be getting 3lbs. That way the
front brakes would lock before the rears.
Only my theory and I may be way offline.
The brake proportioning valve isn't adjustable as far as I know.


Jim Haseltine