Phil Bennett Posted 12 hours ago Share Posted 12 hours ago Hello - Wonder if anyone might be able to help ? 1970, R719, Steel Rectangular Fuel Tanks. Sender unit being refurbished. Trying to find out what the upper and lower (full / empty) Ohms resistance should be for the sender unit. Many Thanks. Phil Quote Link to comment https://www.bigmacktrucks.com/topic/76266-fuel-tank-sender-unit/ Share on other sites More sharing options...
mattb73lt Posted 3 hours ago Share Posted 3 hours ago I've done this several times and I believe 73-10 Ohms should be correct for the sender. A quick google search says that's the range for the Stewart-Warner fuel gauge sender to make the gauge work. The other range is 240-30 Ohms. The Stewart-Warner Technical sight says 73-10 for the 82342 gauge unit. Now you just need to get the right length sender for the tank. They all come with some adjustment to calibrate the sender to the tank. Quote Link to comment https://www.bigmacktrucks.com/topic/76266-fuel-tank-sender-unit/#findComment-588034 Share on other sites More sharing options...
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