IML: Brake Booster

["Eric" <gearhead@xxxxxxxxxxx>]

Brandt,
The cluster seemingly shouldn't have anything to do with the starting 
circuit, unless a wire is loose on the ignition switch and it just happened 
to make contact again when the cluster was put back in, or a wire fell down 
and created a temporary short on the ignition switch connectors. Maybe a 
transmission drive button was pushed in? This is a mystery.

Have you tried pulling the vacuum hose off of the booster yet, plugging it 
with something suitable, to determine if this solves the vacuum hiss sound? 
This would confirm the theory that it is the booster. Check this hose for 
holes and cracks, it will likely need replacment if its 41 years old. There 
should be a check valve that this hose connects to, the seal under the check 
valve should be looked at to see if it is broken.

For a new booster, if this is confirmed by the above test to be the cause of 
the noise, see the website page at 
http://www.imperialclub.com/Part/Brakes/Resources.htm
I got a booster from "Booster Dewey" of Power Brake Booster, Inc, Portland, 
Oregon, 503-238-8882, for my '72 Newport. All he does is boosters and I 
watched him fine tune my booster to tone down the overassist that he 
predicted it would have. It appears there are some brake booster shops in 
California, as well.

On a side note, I did a websearch for 'brake booster portland oregon' and as 
typical, our imperialclub.com vender link was one of the 1st to pop up. Hats 
off to this site for being incomparable, the most carefully built, and worth 
a $100 million, not to mention forward looking. Ok Ok, I mentioned it.

Eric
'63 Crown Four-Door
'72 Newport Custom sedan

Subject: IML: Brakes (1963 Le Baron)
Date: Mon, 4 Oct 2004 08:27:56 -0700
From: "Brandt Daniels" <bdaniels@xxxxxxxxx>
Reply-To: mailing-list@xxxxxxxxxxxxxxxx
Ok. I got my car running again. I just had to put the dash back in. I =
guess there was a short. For those of you that dont remember my previous =
few posts. Im having a brake problem. Its a hard service brake =
accompanied by a vacuum leak. I assume the sound is coming from the =
power booster push rod but i havent been able to pinpoint it. According =
to the service manual I have it says to remove the booster w/ master =
cylinder assembly and overhaul. It says just to dip the diaphram in =
mineral spirits?? Should I do all this? Or buy an overhaul kit? send the =
booster somewhere? buy new? buy rebuilt?

-Brandt 



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