Yes, the missing fluid is almost certainly inside the brake booster
canister. Repair/overhaul kits are available. I did mine years ago, and
the only problem I encountered was the spaghetti-shaped foam rubber packing
for the leather piston seal was too large in diameter and made the vacuum
piston stick. It's difficult to "shave" foam rubber, but I made it work.
The kit was probably made for some car other than Healeys, and perhaps
what's available now is easier to work with. Some have suggested using
suitably-sized silicone tubing to substitute for the foam.
The rest of the kit is just normal hydraulic parts. If you can rebuild a
brake cylinder, you can rebuild the booster.
Oh, yes, the inside of the canister is supposed to be sprayed with a solid
film lubricant. I got mine from Sandstrom Products:
www.sandstromproducts.com. The air dry spray is the stuff to use.
Steve Byers
HBJ8L/36666
BJ8 Registry
Havelock, NC USA
-----Original Message-----
From: healeys-bounces@autox.team.net [mailto:healeys-bounces@autox.team.net]
On Behalf Of David Z
Sent: Sunday, June 28, 2009 4:40 PM
To: Healeys@autox.team.net
Subject: [Healeys] brake fluid loss
I've slowly been loosing brake fluid from my BJ-8's resevoir for a couple of
months and have never found any on the garage floor or inside the car. I
took
the wheels off today to check the wheel cylinders, but they are dry. Would
the
likely suspect be the brake booster? How easy/difficult are these things to
fix? Any other areas to check?
Thanks in advance,
David Z
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