Jim, the fact is that either the diaphragm is good or not. If it is
intermittent, than I would suspect the check valve in the booster assy.
This is the white one way valve that the vacuum hose goes to. You used to
be able to get replacements from the big three, but if you can't find one
I have a good used one -somewhere out in the garage. To rebuild the
booster you need some special tools to take the two halves of the assy
apart. I had my Stag booster rebuilt as I didn't want to damage it. I
provided the parts and they charged about $100 for the work.
Larry Miceli
Gold Coast Triumph Club
Pompano Beach, Florida
'73 Stag * '66 Herald * 69 E-Type FHC
On Wed, 13 Sep 2000 10:57:07 -0400 Jim Davis <jh_davis@mindspring.com>
writes:
>
> Anyone know how to test a brake booster to see if it is working
> properly? The obvious answer is to remove the vacuum hose, plug and
> notice the difference in operation, but mine feels as if it works
> intermittently and at less than full boost at times.
> If faulty, can the average, or in my case below average home
> mechanic
> repair them? Or should they be sent to a specialist, and if so are
> there
> any recommendations?
> TIA,
> Jim Davis
> Fortson, GA
> CF38690UO
> CF37325U
Larry Miceli
Gold Coast Triumph Club
Pompano Beach, Florida
'73 Stag * '66 Herald * 69 E-Type FHC
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