Skip,
About 3 years ago, I did some research on the PDWA o-rings, bought a bunch of
them, advertised and sold them to list members for cost. (No folks, I don't
have any more.) Shortly after repairing my PDWA w/new o-rings, it started to
leak again although DOT 5 was no cause to worry.
I now admit that after the leak surfaced, I did just what you've done and 3
years later, no problems. I even sold a pair of o-rings to Bob Lang on this
list. Say Bob, have you ever installed your o-rings yet or are you still using
the bolt too? :-D
Fear not, Skip, as you've always had and still have dual-circuit braking
system. The ONLY purpose of the PDWA is to light that damn little Brake Lamp on
the dash, giving you about 50 milliseconds warning that your brakes are gone!
Cheers,
Gary Klein
President, TRiumphs Around the Chesapeake, Ltd. TRAC
www.tracltd.org
Digest '75 TR6
Severn, MD
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> Date: Mon, 24 Jun 2002 17:32:31 -0500
> From: Skip Montanaro <skip@pobox.com>
> Subject: PDWA update
> When last we "spoke" I had purchased a used PDWA purportedly from a '72 or
> '73 TR6 thinking it would have a late-style o-ring shuttle. Alas, it
> didn't, and brake fluid (or is that fluif? [;-)] continued to seep past the
> switch. Trips to three different auto parts stores in the Chicago area
> (including Pep Boys, which someone recommended) failed to yield any
> components I could use to temporarily replace the PDWA until I find a later
> style shuttle.
> In the meantime, I decided to just get something to plug the switch hole.
> At the local hardware store I purchased a 3/8-24 allen set screw and an
> o-ring small enough to drop into the switch hole. I put a very small amount
> of RTV Blue on the set screw's threads and snugged it up gently. Looks like
> it was made for the application. I didn't disassemble the PDWA. The leaky
> shuttle is still in there, so I still have a semi-dual-circuit braking
> system. This is supposed to be a temporary fix, just so I can safely get
> the car to the local mechanic to have some other work done.
> I'll let it sit overnight to see if it leaks before attempting to bleed the
> brakes. I'm hopeful it won't, but this has been an exercise in futility so
> far, so I don't have my hopes up too high.
> just-don't-call-me-a-dpo-behind-my-back-ly, yrs,
> Skip Montanaro
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