Temperature sender question -`1940

[joel]

Originally Posted by 19Fordy

Does the stock 1940 Ford 85 HP engine have only one temperature sender unit, Part Number 991-10884, and it's located in the pass. side cylinder head?

I am thinking that the 1940 85 HP Driver Side Cylinder head DID NOT have a temperature sender. TRUE or FALSE?

What year did Ford start installing temp. sending unit in Pass. Side Head?
Thanks, Jim

I think it started with the 8ba. The pass side was the sender for the instrument panel but it went through the drivers side "switch", which above a certain water temp. would open and I think the guage would read all the way to the left.
On my truck (59A) ,I installed a temp sensor in each head. I ran a wire from each to a DPDT switch so I could switch back and forth and read either half of the engine. Many people with FH s have done this.