[TR] "More reliable" sidescreen brake pressure switch for DOT5/silicone?

[David Templeton]

Don,

I fabricated a bracket to attach to the brake pedal and install a standard
GM brake switch. The upside is that it allowed the adjustment of the
switch.  Then made a two-wire harness to the original pressure switch and
hooked it in parallel to the original connection.   It can easily be
removed and is well hidden.  I simply touch the brake pedal, and the lights
come on.

David

On Sun, Sep 7, 2025 at 10:29 PM Don Hiscock <don.hiscock at gmail.com> wrote:

> I converted my TR3B to DOT5 three years ago.  I've been waiting for the
> silicone oil to get into the pressure switch and cause it to quit working.
> That time is here.
>
> Yes, I could convert to a TR6 mechanical switch actuated by the brake
> pedal lever.  I may end up there.  But it's fun to keep this car as
> original as I can.  Is any one supplier's or source's brake pressure switch
> any more reliable than the others around DOT5?
>
> It was a nice day the other day, so the TR3B made the drive to the
> village mailboxes now that I"m living in northern New Mexico.  Forty four
> years last month that I've owned this thing.
>
>
> https://photos.smugmug.com/photos/i-QRBNGvw/0/KvPKhzkvQRPj3kgscg4GSP4mLXMMpmfG2cqzZbBW4/X5/i-QRBNGvw-X5.jpg
>
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-- 
Regards
David Templeton
Ontario, Canada
1959 TR3a TS54226L
1974 Spitsix FM10491L
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