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Old 05-07-12, 15:21
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Mike K Mike K is offline
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Join Date: Feb 2003
Location: Victoria, Australia
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From memory Ford use a bimetal arm and contact points in their gauges .. Fuel Oil Temp. The Ammeter measures Amps, not Volts, it doesn't need changing , it will work fine on either 6 or 12 V systems .

With the points closed current would heat up the bimetal arm , it would then bend and alter the points gap thus affecting current flow . There are points at each end ie the sender unit and the dash gauge itself .

Fitting a 6 Volt regulator to power the instruments is cheap and simple .... most electronic shops will sell one for less than 5 bucks , you need to mount them on a heat sink and use caps to filter any spikes . The TO3 case can handle 5 amps I think ...

http://www.ford-trucks.com/article/article.php?id=040

This is a well written article ... step by step . Print it out and take it to any electronics shop to buy the components .. solder it together and away you go ...cheap as chips


MIKE
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Last edited by Mike K; 05-07-12 at 15:30.
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