The top cover is thick enough for cutting the thread for the switch. Use
a fibre washer to even out the surface, not critical. There is barely
any load on the switch so one or two threads will be fine. You can fit a
spacer plate on the gear lever socket using Araldite or fix it with two
small screws with a sunken head. Secure the screws with Locktite. The
cover plate should be a bit taller than the surface on the socket as the
arc over which it will move is bigger.
A similar switch with a longer nose (I think) can be found on the
gearbox of a Sunbeam/Hillman/Humber/Jensen-Healey 4sp box. I can check
if you let me know the dimensions of your switch (preferably in mm) as I
have a few lying about if I am not mistaken.
Kees Oudesluijs
Op 29-12-2017 om 19:01 schreef Bob Haskell:
> Listers,
>
> Anyone run across a center shift gearbox top cover fitted with a
> reverse light switch, opposite the overdrive 3-4 switch?
>
> See the attached image.? The gear lever socket has the second flat to
> engage a reverse lamp switch, but there are a couple of issues.? The
> top cover flange doesn't have the boss for the switch (you can see the
> boss on the OD switch between the fiber washer and the flange, and on
> the inside), so it's thinner.?? The flange is also farther away from
> the gear lever socket. Compare the two flanges to the two screws that
> hold the gear shift lever in place.
>
> So I'd have to build up the inside of the flange and machine the
> outside of the flange to move the switch far enough inboard.
>
> Just thinking out loud.
>
> Cheers,
>
> Bob Haskell
> AHCA 3000 MkI registrar
> http://www.ciahc.org/registry_3000mk1.php
>
>
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