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1948 - 1956 F1, F100 & Larger F-Series Trucks Discuss the Fat Fendered and Classic Ford Trucks

Gauges 48-50

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Old Feb 14, 2009 | 07:48 PM
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Gauges 48-50

Couple questions about gauges:

1. Does a working temp gauge start out on H and then down to C?

2. Ammeter looks inductive (cable near gauge). The path of the wire is important I assume. What is the correct wire travel path?
 
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Old Feb 14, 2009 | 08:35 PM
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From: NM
1. Yes -- do a search, I posted a schematic that shows why

2. Yes, can't say, you have a 50-50 chance
 
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Old Feb 14, 2009 | 08:38 PM
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Originally Posted by john fin
Couple questions about gauges:

1. Does a working temp gauge start out on H and then down to C?

2. Ammeter looks inductive (cable near gauge). The path of the wire is important I assume. What is the correct wire travel path?
Hi John Fin.

Yes and Yes!

A working temp guage will park on "H" (hot) with the ignition off then move to "C" (cold), or the engines actual temp when you turn on the key.

The Ammeter is an inductive loop type and the wire running through it starts on the battery post of your voltage regulator, runs to the circuit breakers on the instrument panel, then through the loop, to the battery post of the starter solenoid - if you have a stock wiring and charging system - 6 Volt DC, Positive Ground.

If you change to 12 volt it still works. But with the change to negative ground, you need to reverse the direction the wire flows through the loop.
 
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