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Old 10-21-2020, 11:23 PM
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mjc34 mjc34 is offline
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Default 65 Big car fuel gauge. Burnt resistor?

Is it common for the resistor on the back of a 65 fuel gauge to get burnt? The one that came with the car looked burned and overheated. The Bakelite board also looked cooked. Still functioned within a few ohms of the replacement, and the gauge is in car now working perfect.
Did the car perhaps have a short to ground at the sender for a prolonged period of time?

Just curious as to what might cause this...
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Old 10-22-2020, 01:23 PM
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Peter Serio Peter Serio is offline
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Hard to say from just a photo, but that resistor is designed to handle at least 3 watts of current.

In normal operation it does get warm to the touch and after 55 years in the car it is a part that can fail. Heat and the passing of time are the enemies of anything electrical.

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