Temp gauge- thermostat in or out?

GetARow

New User
Got Gladys cranked and running like a sewing machine. Replaced water pump. Temp gauge doesnt move off of cold peg. Will 640 engine without stat result in no movement of temp needle? I dont know if stat is there or not. Just wondering if its that or bad gauge/sending unit.
 
No stat on a cold day will make the needle on the gauge stay firmly planted on the LH side. To see if the stat is missing (or stuck open) remove the radiator cap when the engine is cold and running and look in the top tank for water movement. You should see none.
 

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