In a panic stop weight shifts forward lightening the load on the rears.
As the rear end starts to rise the proportioning valve reduces brake
pressure to the rears (rod moves out of the valve housing) to keep the
rears from locking up. Rod in = full pressure = full braking to the
rear, rod out = reduced pressure = reduced braking to the rear. If for
some reason in normal driving (car level) the rod is moved out or
misadjusted with too large a gap you'd pretty much be driving with
only the braking power of the fronts and the fronts would be more
likely to lock up in a panic stop. The 'Ideal' I think is to have the
fronts lock up just before the rears do, though I bet there are other
opinions out there.
Peat
On Jul 13, 2005, at 11:07 PM, kenneth parker wrote:
> I am curious how an improperly adjusted proportioning valve could
> affect the front brakes though, and cause them to lock.
> Ken
>
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Received on Thu Jul 14 01:21:34 2005
