Overheat adventure on 1985 Universal M12

jssailem

SBO Weather and Forecasting Forum Jim & John
Oct 22, 2014
24,663
CAL 35 Cruiser #21 moored EVERETT WA
Put Teflon tape on the thread I imagine.
No. Most temp sensor’s are electrically grounded by being threaded into the engine block. The Teflon tape will insulate the sensor and you’ll wonder why it is not working.

The threads are NPT and generally produce a sealed attachment.