Listers,
I received the 11 inch electric fan from JC Withney (no comments
please) in the mail the other day for installation in my 62 TR3B. The
installation looks pretty straight forward that I think even I can do
it.
But as usual, I do have a couple of questions that I would like to
tap the collective wisdom of the list for.
First, I am concerned that the weight of the fan being held in place
against the radiator by the 4 plastic Ty rods will result in stressing
and bending the fins. Is this a valid concern? Should I rest the fan
on the lip in front of the radiator or on a piece of wood or
something?
Second, although I have a doctorate degree it is not in car
mechanics nor electrical components. The wiring harness has 4 wires.
One is the inline fuse to power the fan and hooks to the fan. The
second is to vehicle ground.
The third and fourth wires are stripped on the end and raise
questions. The instructions say to attach the black wire "To ignition
switch power flow only when key is on". The red wire is "To power
flow even when key is off"
1. Does this make sense? It seems to me that if you are going to
have power flow even when the key is off, this is all one would need,
since the fan would work with the key on or off. Do I need power to
the fan (and therefore the fan working) when the key is off? Since no
further heat is being generated, won't things cool down by themselves?
And even if they don't cool down by the time I am back in the car,
driving again, the fan should kick back on with the key on. So do I
connect both these wires to one site that works either with the key on
or off?
2. Assuming I need both to different sources, where exactly do I
splice these wires to? What have others done in the past?
3. How do I know BEFORE cutting into all these wires in the car
which ones work with the car on and/or off?
FWI, there is also a separate wire that is the ground for the fan
motor.
As always, I appreciate any help in this matter.
Erkan Hassan
62 TR3B
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