I had a case of "exciting brakes" on my 57 a few years ago. Turns out what
happened
was that the boot on the master cylinder had deteriorated, fallen off and the
grunge
apparently got inside the cylinder wearing out some seals. At any rate I fooled
around with adding fluid til one day I turned into the parking lot of my
workplace
and heard that dreaded THUNK as the pedal hit the floor. Fortunately the
parking lot
was empty because I quickly became NASCAR's oldest Craftsman Truck series
participant as I turned laps in the parking lot to scrub off the speed. ;-)
Bill
Max Power wrote:
> >
> > Recently, I've been noticing a somewhat disturbing behavior of my brake
> > pedal. When I'm holding down the brake, at a stop light or whatnot, the
> > pedal slowly lowers to the floor under my foot. This is not good. Also
> > not good is that over the past few days, it's been doing that more often,
> > and also while braking during normal driving.
> >
>
> If you're losing fluid in the master cylinder, even slowly, it must be going
> somewhere. I had the same slow pedal to the floor and found a tiny pinhole
>leak
> right in the middle of the brake line running to the rear. It would take a
> while to drain the master cylinder, but the time to find that out is not while
> mixing it up in freeway traffic or (worse) driving down Grapevine Hill.
>
> Wally (who has had a few more hairs turn gray due to "exciting brakes")
>
> oletrucks is devoted to Chevy and GM trucks built between 1941 and 1959
--
Bill Bailey
57 Chevrolet 3100
http://members.tripod.com/~oltruck/
oletrucks is devoted to Chevy and GM trucks built between 1941 and 1959
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