This is "borrowed" from the Tiger Tips page for a '67 Mk1a Tiger:-
> Fuel Gauge
> Gallons Ohms
> 2 145
> 4 80
> 6 55
> 8 38
> 11 21
> Temp Gauge
> Degrees C Ohms
> 60 150
> 80 77
> 90 57
> 100 41
> 120 24
>Stu Brennan
>stuartb(at)an.hp.com
the full tip is worth reading:-
http://cablepop.sc.intel.com/tiger/techtips/gageohms.html
unfortunately, there's no photos of the fat lady :-)
As far as I know, the Alpine and Tiger gauges are the same. To check the gauges,
I'm thinking- wire a 220ohm potentiometer in series with a 22ohm resistor.
Replace sender(s) with your circuit. With the ignition on, slowly turn the
pot and check the Gauge(s) move full range.
22 R 220 R lin pot
0----WWWWW-----WWWWWWWW--
^
`---------------0
(I haven't measured it, but first I'd check the gauge itself has a
reasonably high resistance i.e. 100s of ohms, otherwise you'd have a hefty
current drain whenever you top up the gas and a seriously hot petrol tank
sender to go with it)
You could do it for a dollar from any radio-spares shop. I'll be trying it soon.
Andy, Glasgow
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