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Oil pressure gauge

joe newsom
joe newsom
in Electrical

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comment_554781

The gauge could be tested with the key in the ON position and engine not running. Use a potentiometer in place of the sender. If there is voltage going through the gauge, moving the potentiometer will cause the needle to move.

Was the engine rebuilt? Was the sender removed/replaced? Are you sure all of the connections are correct? Do you have voltage to the gauge? How about voltage to ground at the oil pressure sender? Are the threads clean at the block and sender? 

  • Author
comment_554812
The gauge could be tested with the key in the ON position and engine not running. Use a potentiometer in place of the sender. If there is voltage going through the gauge, moving the potentiometer will cause the needle to move.

Was the engine rebuilt? Was the sender removed/replaced? Are you sure all of the connections are correct? Do you have voltage to the gauge? How about voltage to ground at the oil pressure sender? Are the threads clean at the block and sender? 

The engine was rebuilt. No I did not replace the sender ( in fact I zinc plated it) which left me wondering if that process damaged it. I am pretty sure all connections are correct. I do not know if there about voltage. I need todo some testing and break out the good ole wiring chart.

 

 

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