Ken:
I agree with Bob - the air valves are activated by the movement of the brake
fluid itself, which in turn activate the vaccuum piston. It's been my
experience that the whole deal tends to be pretty delicate.
My advice would be to bite the bullet, stick it on the car, and hope that
the Girling Servo Gods are smiling on you!
Cheers, ----------- Earl
----- Original Message -----
From: "Bob Spidell" <bspidell@pacbell.net>
To: "Healey List" <healeys@autox.team.net>
Sent: Tuesday, May 11, 2004 9:27 AM
Subject: Re: brake booster test
Ken,
In its "normal" state the vacuum/air valve (I think) will apply vacuum
to both sides of the vacuum piston. The only way to "cycle" the vacuum
would be to remove the cover on the vacuum/air valve (on the side of
the servo body) and manually move it. You will probably need
a new gasket afterwards, although if you're lucky you might be able to
re-use the old one. BTW, you can't buy that gasket alone--at least I've
never seen one--and rebuild kits run about $80.
I've just rebuilt two of these, and I can't think of any way to test one on
the bench. You just have to hope the rebuilder knew what she was doing.
bs
********************************************
Bob Spidell San Jose, CA bspidell@pacbell.net
'67 Austin-Healey 3000 '56 Austin-Healey 100M
********************************************
----- Original Message -----
From: "Freese, Ken" <Ken.Freese@Aerojet.com>
To: "'Earl Kagna'" <kags@shaw.ca>; "Freese, Ken" <Ken.Freese@Aerojet.com>;
"Healey List" <healeys@autox.team.net>
Sent: Tuesday, May 11, 2004 8:37 AM
Subject: RE: brake booster test
> Thanks, Earl, I guess I will hook up the unit to engine vacuum and cycle
it
> a bunch of times manually. Assuming I can figure out how to do that.
> Ken
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