Bob Adams wrote:
> Just run it on a toggle and flip it on when the motor is up to temperature.
> The potential for failure is higher with a "sensor" than a toggle switch.
>
Umm, maybe for you but I find that my toggle switch sensor often gets
distracted and might only activate the toggle switch upon sensing steam
emerging from the bonnet.
I find that an electrical sensor has fewer distractions and is much
more reliable than the one behind the wheel. However a toggle switch in
parallel to a sensor & its relay makes for a sensible backup system.
I tend to set my fan sensor to activate the relay 5 to 10 degrees higher
than the thermostat opening temperature. TR3 radiator caps don't have a
very high pressure rating and I prefer my coolant to be in the colling
system and not the catch bottle.
Teriann
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