You may have to run an additional wire from the case of the gauge to the positive battery terminal (grounding the gauge)
Quote:
Originally Posted by TomO
Using an ohm meter to test a King Seeley sending unit is a waste of time. Any reading other than 0 ohms is caused by the contact corrosion.
Lawson gave you the correct procedure. If you have a spare gauge, connect the neg term of a 6 volt battery to the terminal on the gauge that would be on the passenger side of the car when the gauge is in the dash and connect the other terminal to the center terminal of the sending unit. Connect the case of the sending unit to the POS terminal of the battery. Moving the arm toward the sending unit should cause the gauge to read towards the full mark. The gauge will move slower than the arm movement.
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