I intend to install an electric fan on my 74 TR6 and I would be grateful
for any comments or advice from the list. The fan is sitting idle in the
garage (from a previous vehicle) and I would like to make use of it on the
TR if possible.
Moss make stainless steel bottom radiator pipes for the TR2-6 complete with
a threaded fitting for a thermoswitch. The thermoswitches come in four
different temperature combinations: 86/81, 88/79, 92/87, and 86/76. It
looks like a very tidy arrangement. Better than the copper tube inserted
into the pipe/radiator joint which I have seen leaking on several vehicles.
1. How do you choose between these thermoswitches? What is a good
mid-point temperature and what effect does a wide or narrow temperature
range have on performance?
2. Most electric fans that I have seen have the thermal switch in the upper
radiator hose. Which is the better place, upper or lower, does it matter?
What temperature difference exists between the upper and lower ends of the
radiator under normal operation?
3. Is it even wise to replace the engine fan with an electric fan (TRs have
been known to overheat)?
4. Is it worth installing a manual override switch?
5. How should the thermostat temperature relate to the fan's thermal switch
temperature, or should I remove the thermostat <g>?
I live in a fairly mild climate: 0 to 40C max and 10 to 30C most of the
time, with mid to low humidity.
Trevor Jordan
74 TR6 CF29281V
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