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Re: Brake light switches AND fluid problems

To: Larry Macy <macy@bblmail.psycha.upenn.edu>
Subject: Re: Brake light switches AND fluid problems
From: "James H. Nazarian, Ph.D." <microdoc@apk.net>
Date: Fri, 25 Feb 2000 13:12:03 -0500
Larry,

Life is full of contradictions, and new knowledge often necessitates that we
contradict our own previous position. But, in this case, there is less confusion
than what is apparent: Yes, we do have two James Nazarian's on the list, and
between us 3 MGA's, 4 B's, and 4 GT's. James, Jr. is attending Colorado
University, and I, James, Sr., regret that I am not. He answers to "James", and 
I
to "Jim".

Jim

Larry Macy wrote:

> Whoa Now I am confused. Do we have 2 James Nazarian's on the list?? If
> not why do you contradict your self.
>
> Larry
>
> >>>>On 2/24/00 6:26 PM so and so (James Nazarian Jr) said. (And I quote:)
>
> >I just read last week that DOT 5 has a higher boiling point than DOT 3 &
> >4.  I read this in a suspension tuning book, that I would consider quite
> >reliable.
> >
> >James Nazarian
> >'71 B roadster
> >'71 BGT rust free and burnt orange
> >'74 BGT going by-by soon
> >'63 Buick 215
> >
> >On Thu, 24 Feb 2000, James H. Nazarian, Ph.D. wrote:
> >
> >> Hi Max,
> >>
> >> As I have understood, DOT 5 does have a lower boiling point than the other
> >brake
> >> fluids. The difference is not great, and falls into the vicinity (I think)
> in
> >> excess of 400 F. Most amateur LBC racers, in their wildest dreams, will
> never
> >see
> >> brake fluid temperatures like that. So be it if Silicone isn't the best for
> >race
> >> cars, but it is great for street cars. IMHO it is silly to be changing
> brake
> >fluid
> >> once, twice or more times per year when there is a better solution
> available.
> >I
> >> hate to think where all that DOT 3 & 4 brew gets dumped every year.
> Silicone
> >is
> >> inert, non-irritating, non-toxic and, for the most part, non-allergenic. As
> >for the
> >> breast implant controversy, I prefer Coke: "It's the real thing."
> >>
> >> Jim
> >>
> >> Max Heim wrote:
> >>
> >> > Actually, I seem to recall that the knock on silicone is that it had a
> >> > lower boiling point, and that with hard driving and disk brakes, it could
> >> > potentially boil. Steam is highly compressible. For this reason it used
> >> > to be strongly recommended for show cars (safe for paint) and
> >> > contraindicated for race cars (obviously), with everyone in between free
> >> > to choose. Haven't heard this lately, perhaps newer formulations have
> >> > fixed this.
> >> >
> >> > James H. Nazarian, Ph.D. had this to say:
> >> >
> >> > >Gents,
> >> > >
> >> > >> The three problems with silicone are that,
> >> > >> 1. it does not absorb water.  This allows water to pool in the lines
> >unless
> >> > >> you bleed it out every year.
> >> > >
> >> > >Hydrophobia is not a detraction of DOT 5, but a benefit. Can someone
> site
> >an
> >> > >example of definitive research showing that water will pool in silicone?
> I
> >> > >don't
> >> > >think so! Try leaving some in an open graduated cylinder for a year or
> two
> >> > >and
> >> > >see if the volume changes, or any pools of water show up.
> >> > >
> >> > >> 2. it is (or was in original formulation) just a bit more compressible
> >than
> >> > >> DOT 3 or 4 brake fluid.  This may only be in early silicone fluids and
> >could
> >> > >> be much better now.  Barney, you use that A for some serious
> >autocrossing.
> >> > >Did
> >> > >> you notice any difference in pedal feel between DOT 5 and DOT 4?
> >> > >
> >> > >Compressibility? Of a liquid? If such a thing could occur, I seriously
> >> > >doubt one
> >> > >could detect it with a foot.
> >> > >
> >> > >> And 3. the above seal swelling problem.
> >> > >
> >> > >I respectfully suggest this is a myth. If the stuff is no good I'd
> >appreciate
> >> > >some proof before I remove what appears to be perfectly performing, 10
> >> > >year old,
> >> > >anhydrous brake/clutch fluid, and replace it with rust-worm food.
> >> > >
> >> > >Jim
> >> > >
> >> > >
> >> > >
> >> >
> >> > --
> >> >
> >> > Max Heim
> >> > '66 MGB GHN3L76149
> >> > If you're near Mountain View, CA,
> >> > it's the red one with the silver bootlid.
> >>
>
> Larry Macy
> 78 Midget
>
> Keep your top down and your chin up.
>
> Larry B. Macy, Ph.D.
> macy@bblmail.psycha.upenn.edu
> System Manager/Administrator
> Neuropsychiatry Section
> Department of Psychiatry
> University of Pennsylvania
> 3400 Spruce St. - 10 Gates
> Philadelphia, PA 19104
>
>  Ask a question and you're a fool for three minutes; do not ask a
> question and you're a fool for the rest of your life.


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