I have a 1952 Plymouth Cranbrook. The car has been converted to 12V

I thought the gas gauge was working. When I fill the tank it goes all the way over past the full mark. After it gets down a few gallons it just drops to E

Does it matter if 12 or 6 volts are going to the gauge?

Before I spend the money on a new sender should I try a dropping resistor in the gauge?

Thanks all.

 

Anyone? Please?

 

A resistor should work, which one not sure, been quite awhile since I've had to do those type of calculations. I'll bet there is some calculator for just such a thing on line somewhere.

 

Of course "it matters."

First of course, there may actually be something wrong, think of gauges as an end to end system.

Plot the path in your mind "how they work" and how they are hooked up. They are generally a long, series circuit, so any break or loose connection along the way will break the whole chain

Google "runtz" instrument regulators. These are used, one each for fuel, temp, and oil for 12/ 6V conversions.

http://www.speedwaymotors.com/Runtz-...cers,2374.html