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TR2/3/3A Correct position for flasher bracket?


Darth Vader
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I've seen it mounted beside the wiring loom on the passenger side and numerous other locations. My 3 has it mounted by captive nut and bolt about 10" from the loom. Was the location changed over the years? The new wiring harness I have has short wires coming off the loom that would suit mounting it beside the loom.

Geo Hahn

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...Was the location changed over the years?...

Yes. I'm thinking it was at TS60000 that the control box went sideways and other components near it (including the flasher can) moved a bit.

This is how I did TS47905L:


Hopefully that is correct, no guarantees.

Also... a photo I took of an original car, older than mine and has the blanking plate:



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Straight out of the judging guide:

Voltage Regulator (Control Box), Fuse Box, Flasher Unit. The Voltage Regulator and Fuse Box is the same
basic unit on all models.

Flasher Unit. Although the parts manual only lists one change, three flasher unit variants are known:

* Early TR2 - cylinder mounted horizontally; screw tab at end to left.
* Late TR2/TR3/Early TR3A - Screw through center; connectors at top, mounted vertically.
* Late TR3A/TR3B - Screw tab at top, mounted vertically, spade connectors.

Either of the first two is acceptable for TR2s. TR3s should be fitted with the second. TR3As may have either later
variants. TR3Bs should have the last version.
Mounting Configuration Variations. Variations include:

* Early TR2 configuration - Voltage regulator mounted with connections pointed down. Flasher Unit
mounts with screw on left and body extends horizontally.
* Late configuration - Service bulletin (Sports 2/M) in February 1954 announced change because of
problems due to heat from the engine affected reliability of flasher unit capacitor. Regulator mounting
is changed to connectors pointing to the left.

The early configuration is commonly found well into 1955 titled cars. All cars TS60001 and after should have later
configuration. TR2s after TS138 may have either configuration.

And, Straight from the service bulletin:



Darth Vader
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To see a picture of where my flasher is located go to..."1962 Triumph TR3 britsportsofseattle.com 2009 picture" and scroll down to the underhood pic. (I'm not good at posting pics on this forum.) You can see that the flasher mounting is much removed from the location of the early ones.


Darth Vader
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Yes that's where mine is located but I bought an earlier harness with the shorter wires so I'll mount it in the other location.


Darth Vader
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I do appreciate you posting that pic. Thanks for your input. :encouragement: I may have asked you this before but what is the color of your TR3?...it is similar to mine which is a Jaguar color called silver blue metallic.
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