[AMC-List] Fw: Temp sending unit question

["Jay" <jciampi@xxxxxxxx>]

I measured the resitance of the center contact on rthe sensor with the gauge 
cable connected to it and it read 38 ohms.(cold engine). That till isn't 70 
ohms.


Subject: [AMC-List] Temp sending unit question


> My 1966 TSM says that the temp sending unit should read 70 ohms when cold
> and 120 ohms when 212 degrees. I measured my new unit and the old unit 
> after
> removing it from the engine and NEITHER one reads anywhere near 70 ohms
> cold. I get 268 ohms cold with the old one and about 258 ohms on the new
> one. That is reading it from the electrical connector to the brass sensor
> that goes into the block.  What am I doing wrong. The TSM doesn't anything
> about whether the gauge wire has to be  connected to the unit while it is
> screwed into place.
>
> Jay
>
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