Fuel gauge problem/question

[Copper116]

I checked with Truck and Car shop in Orange CA. They do not have any in stock; their supplier does not sell them anymore. These resistors are almost as scarce as toilet paper was...

[RustyPile]

Originally Posted by Copper116

I checked with Truck and Car shop in Orange CA. They do not have any in stock; their supplier does not sell them anymore. These resistors are almost as scarce as toilet paper was...

Before you go to all the trouble of tracking down one of those resistors, check the one on your gauge.. The resistor cannot be accurately tested while attached to the gauge.. Doing so, renders a reading that includes some of the "internal" resistance of the gauge also.. Remove the resistor from the gauge and then take your reading.. Should be in the area of 85 - 90 ohms.. Anything else indicates a bad resistor.

I have repaired numerous gauges using a commonly available 85 - 90 ohm 3 watt metal film resistor.. The leads are long enough to fashion loops that fit over the posts of the gauge.. The resistors are available from Mouser electronic supply... Their warehouse is located in the Dallas, Texas area...

[lutronjim]

A question for RustyPile.

Why are the stock resistors apparently wire wound over a flat board?

Thanks

[RustyPile]

Originally Posted by lutronjim

A question for RustyPile.

Why are the stock resistors apparently wire wound over a flat board?

Thanks

It's designed to specifically fit the gauge. Referred to as a wire wound resistor. The wire is special resistor wire, similar to the resistor wire used in a points type ignition... The resistance is determined by length of the wire..