Too low or too high? Give your tractor a gauge that knows the right answer
Does the old gauge on your antique tractor read Too Low and Too High almost always? The first stage of fixing this is to learn where the defect is. Heres the plan. If your gauge reads too low at all times, this is almost always caused by a high resistance connection in a wire, or wires. The wire to the gauge on the gas tank is likely a bayonet connection. It frequently develops high resistance because of water exposure. To cure a Too Low reading gauge, clean up all of the circuit connects, including that of the gauge itself. If the gauge still does not read correctly, it will have to be checked with the rheostat to find the defect. Maybe your gauge says Too High at all times? In other words, does your gauge register as nearly full, when you know too well that you might be near empty? Or perhaps the temperature gauge says you are near boiling, when the temperature is within normal range. These indications are generally caused when the wire from the sending unit to the receiving unit is partially grounded. The only way to really know is to use a rheostat in place of the sending unit to determine if the gauge on the dash is in good repair. If after making certain that there is no partial ground on the wire between the sending and receiving unit, the sending unit should be replaced. Tractor enthusiasts find precise and reliable
gauges on Steiner Tractor Parts website.
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