I have cosmetically restored many gauges from all models of Triumph cars. All
of the bimetallic small gauges draw 75mA at half scale. 120 MA puts the needle
at the top mark and 150 mA pegs the needle to max.
The bimetallic gauges are purely resistive and only full battery voltage would
cause the needle to peg on start up. I can not see where any gauge defect would
create the symptoms you describe.
Perhaps others can share an idea why you are seeing what you describe.
Greg G.
On Sep 29, 2019 6:06 PM, Jim Henningsen <trguy75@gmail.com> wrote:
>
> Question. I am still having a challenge with the electric temperature gauge
> on my 62 TR4. I am now thinking it might be a bad gauge. As soon as I
> start running the engine the temp gauge pegs to max. I know by the laser
> temp gun I have that it is not running above 165 on the coolant in the
> radiator. I swapped the original voltage stabilizer for a new neg ground
> one and it still does the same thing. I replaced the temp sending unit and
> no change. Bad gauge? It worked a few years back in 2012 before I took
> the
> car off the road for a restoration. Does Nisonger rebuild these smaller
> gauges?Â
> Thoughts would be greatly appreciated.Â
> Jim Henningsen
> Ocala FL
> 60 TR3A
> 61 TR3A
> 62 TR4
> 75 TR6
> 82 Jeep CJ8
>
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