I suspect my original Smiths water temperature gauge is not accurate. It
slowly works it way up to 250+ and pegs out. The water temp. (75% antifreeze)
does not appear to be boiling. The needle motion is jerky. I tried grounding
the sender line and the gauge pegged out. It took about 30 seconds to do so,
and did it in a series of jerky motions. Now, I'm trying an experiment. I
rigged up a mechanical gauge to the line next to the electrical sending unit.
I'm going to run the motor and compare the two temperatures. If the
electrical gauge is off, is there a way to recalibrate it?
Rob Kempinski
Melbourne Fl
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