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Re: Brake light switches AND fluid problems

To: "Dodd, Kelvin" <doddk@mossmotors.com>
Subject: Re: Brake light switches AND fluid problems
From: "James H. Nazarian, Ph.D." <microdoc@APK.NET>
Date: Wed, 23 Feb 2000 20:33:34 -0500
Silicone being a rather smallish and very slippery molecule, will find almost
any way in or out of an enclosure. If the device was made for DOT 3 & 4, it may
very well leak DOT 5. Silicone is contraindicated in such cases, and it would
be reluctantly recommended to switch back to paint remover.

Jim
(Sulking in his loneliness, he pours the evening's final glass of Merlot, while
hoping his fair maiden will soon rescue him from his fate of riding solo.)


"Dodd, Kelvin" wrote:

> Just to add to the furor.
>
>         I have a friend with a 58 Ford Ranchero.  He has been running
> silicone brake fluid in the beast for a long time.  Guess what.  He cannot
> keep hydraulic brake switches in it.  He has gone through just about all of
> the American brands.  It is the same thread as the MG one, so I tried an
> Intermotor brand switch from our shelf.  Same problem, again and again.
> Four switches later I said enough!  He now has a mechanical switch rigged
> up.  My own experience was that the switch on my race car was bad after
> sitting for 10 years in a silicone fluid system.  I installed a new switch
> and so far it is still working. (I think).
>         What value am I adding to this discussion?  Not much.  In regular
> use, the hydraulic switches seem to have a happy life, with good results.
> Otherwise we would be having major complaints.  With silicone fluid there
> seems to be a lot of concerns, and for some reason evidence of a high
> failure rate.  Would I still run silicone?  Yep.
>
> FWIW
>
> Kelvin.


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