I've got a '55' 259 cu.in engine in my 53. not sure if the temp sending unit is a 6V or 12V unit. Guage is original and has a resistor on it so that it has 12v to it lowered to 6V at the guage. the guage checks out if shorted, it goes to hot. When checking ohm resistance in sending unit it goes from .5 to .3 when the engine gets hot but does not move the guage. The sending unit is not in an easy location so trying to check it out before going through removal.
Any ideas? I have resisted buying a Napa guage and putting in glove compartment. Would like to get original guauges working.
Thanks for any info you guys can share.
Any ideas? I have resisted buying a Napa guage and putting in glove compartment. Would like to get original guauges working.
Thanks for any info you guys can share.

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