Re: [TR6] thermostat for electric fan - fits tee for vacuum switch?

I have noticed that the thermoswitch on many modern cars is located about
two thirds down the radiator on the side, I presume there is a good reason
for this. When converting my TR to a electric fan I soldered a 22mm  half
nut to the back of the radiator header tank so you just screw the switch
into it.
Seems to have worked well for me.

David Brister,
1967 TR4A.