[6pack] TR6 Electric Cooling Fan

[trsix74 at comcast.net]

B B B  B B B B B Before you go ripping your engine compartment a new one,
let's make sure the
basics are covered.

B B B B B B B B 1. Is your radiator shroud in place and in good condition?
That shroud is
there for a reason.
B B B B B B B B 2. Have you tried replacing your thermostat and radiator caps?
They have been
known to fail.
B B B B B B B B 3. Are your hoses properly routed, and in good condition? No
swelling or
leaking?
B B B B B B B B 4. Is your timing set correctly? - 10 BTDC with vacuum to the
dizzy
disconnected and plugged.
B B B B B B B B 5. How is your mixture? Are your spark plugs a grayish tan
color? If they are
white, your mixture is too lean, which will make the engine run hot and cost
you power.
B B B B B B B B 6. Is your coolant fresh and in good shape? No rusty goop
visible?
B B B B B B B B 7. If all of the above are good, try reducing the amount of
antifreeze to
25%. Water is a better coolant than antifreeze, and in your climate you do not
need minus 50F freeze protection. Do not use pure water, as anti freeze has
corrosion inhibitors that protect the cooling system.

B B B B B B B B The cooling system on the TR6 is fairly stout, and if your
engine is stock or
nearly stock, it should be up to the job for routine driving. I suspect that
if it is misbehaving, an electric fan will do little to correct problems you
are encountering. You may still wish to go to an electric fan for noise,
mileage and power considerations, but you should normally not need to modify
it because of overheating.






Vance has all the correct check points. Another item it could be is the water
pump. Run the car, with the rad cap off. Once the water has reached temp, the
thermostat should open and then the coolant solution should start to move. If
it does not then somewhere you have a blockage and or the impellar of the pump
is not working. The impellar can corode after years of use. The old ones where
made of brass, but the later ones of steel. TheyB can be replaced easily.

B B B B