Temperature Gauge on 3.7L not working

tev2229

Seaman
Joined
Sep 26, 2009
Messages
56
Mercruiser 3.7L/470 1981...

My temp gauge on the dash does not work. I would trace the lines back and find out where they go, but they aren't hooked up behind the dash :eek: The PO told me he did a lot of re-wiring. It looks like he did more bad than good.

Anyway, my question is whether the temperature comes from the thermostat, or if there is a separate temp sender somewhere on the motor. Where would I look for this? What does it look like?

Sorry for the lame question!:p Being the 470, I really want to make sure I don't overheat it. Thanks everyone!
 
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