Re: 1937 Fuel Gauge Question
Posted by HH56 On 2021/1/26 13:04:59
The gauge is the magnetic type so if you are testing it out of the car make sure the gauge unit is also grounded so both coils are in the circuit. The terminal connections do make a difference. Usually the battery side will have some kind of ink or even a stamped indication although it may be hidden under insulating material. Here is a schematic typical of gauges used at the time taken from the 37-38 Service Manual.
Not quite sure the resistance range of the sender is correct -- but it may be or at least is close. A typical range of other senders used in models having similar magnetic gauges thru 47 was 0 full and 100 empty but Packard used different brands of magnetic gauges over the years so there could be different ranges.
Attach file:
fuel gauge.jpg (116.32 KB)
Not quite sure the resistance range of the sender is correct -- but it may be or at least is close. A typical range of other senders used in models having similar magnetic gauges thru 47 was 0 full and 100 empty but Packard used different brands of magnetic gauges over the years so there could be different ranges.
Attach file:
fuel gauge.jpg (116.32 KB)
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