For cooling the recently fitted B20F in my 444 I want to try (and bought) an electric fan and therefore I had a provision made in the lower radiator part for mounting a thermostatical switch. Now these come in an enormous number of variaties (see for instance www.facet.it and enjoy the Italian language).
I was advised to try a 85/75 degr. C switch when a 82 degr. C thermostat is mounted. What do you think? And what do you estimate the temperature will be in the head when it is 85 degr. C in the lower radiator?
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