Keep driving and keep an eye on it (and carry some brake fluid with
you). If it continues to be a problem, pinch off the vacuum hose
with a coupe bits of wood and a clamp, and drive with manual brakes
for a while (no power boost). If that curtails the loss of fluid,
you have isolated the problem (and the booster needs a rebuild).
At 07:12 PM 11/11/2012 -0500, Dan Dibiase wrote:
>On so how do I confirm that? I filled the MC and took a short ride
>(about 5 miles) and checked the MC again - same amount of fluid. If
>fluid is being sucked into the engine I should see fluid loss only
>after driving right? So if I check it again tomorrow am it should be
>where it is now...?
>....
>On Nov 11, 2012, at 5:49 PM, Barney Gaylord <barneymg@mgaguru.com> wrote:
> > The '76 should have a power brake booster. If the vacuum
> diaphragm in the booster splits or looses the seal, engien vacuum
> can pull fluid out of the master cylinder into the intake manifold
> to be burned in the engine.
> > At 05:35 PM 11/11/2012 -0500, Dan Dibiase wrote:
> >> Went to take a drive in the '76 B today .... the brake master
> cylinder was almost dry. No fluid on the garage floor or in the
> car. .... Where could the fluid have gone??
> >> ....
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