[TR] TR3 Backup Light

[wbeech at flash.net]

I did not know that there was a backup light option for the TR3.  Was this a
dealer installed item?  Shouldn't there be a provision in the body and
wiring harness for this?

I have a spare transmission top for an O/D unit, can one of these switches
be used as my car in non-O/D?

Bill

Bill Beecher
'58 TR-3A TS30766L  "Tarbaby"
www.triumphowners.com/1566
"A Triumph is man's best friend, it always comes when it is called...of
course, some times it is difficult to make it go"

 

-----Original Message-----
From: triumphs-bounces at autox.team.net
[mailto:triumphs-bounces at autox.team.net] On Behalf Of David Gunn
Sent: Thursday, December 15, 2011 10:05 AM
To: cfmtr3a at verizon.net; triumph list
Subject: Re: [TR] TR3 Backup Light

Carl - How are you planning on mounting the light to your car? David
GunnChico, CA1954 TR2 "Coupe"TS3388L  > Date: Wed, 14 Dec 2011 14:53:09
-0600
> From: cfmtr3a at verizon.net
> To: triumphs at autox.team.net
> Subject: [TR] TR3 Backup Light
>
> Finally getting around to this...
>
> I have an original [in box] TR3 Backup Light (Lucas L494) that I will 
> be
mounting on the project.  I know that there has been discussion on the list
of different ways to mount/wire it - but I can't seem to find it in the
archives.
>
> Option 1: Add an inhibitor switch on the tranny that is engaged when 
> in
reverse.  Not really an option as I don't want to drill/tap the tranny top
cover.
> Option 2: On/Off switch similar to the push/pull on the TR3 center 
> panel -
upgradable to the one with the light
> Option 3: On/Off toggle switch
> Option 4: Button type on/off switch (engaged when depressed - similar 
> to a
door/interior light switch) mounted somewhere on the tranny cover to be
engaged when transmission is in reverse.
>
> I would like to go for #4 - but not sure if I can engineer it from
scratch.
#2 or #3 would be the easiest.
>
> wiring is fairly straightforward.   Green from an appropriate power point
(ignition or elsewhere) to Switch and from switch to lamp.  Ground from lamp
to body through fixture (andin my case also a secondary ground to an earth
clip on chassis.  Although the power feed is ultimately fused, I will
probably include an in-line fuse between switch & power for safety sake.
>
> Any thoughts out there?
>
> Thanks
> Carl
>
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