[Sunbeam Talbot Email List] Radiator Fan Switch

[Bill M]

I am going to have my radiator modified to take an electric fan switch like we
have on modern cars. The switches are available in a variety of opening temperature 
ranges so I want to pick one appropriate for my MK1 Alpine.

According to the manual the thermostat opens at about 160 F / 71 C

Should I get a switch that opens about 160 F / 71 C or a bit higher ?