Electric fan

Started by Dominic, September 01, 2006, 10:21:33 PM

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mpk490p

Thanks, did you drill and tap a hole in the rad for the thermo switch?
Mark

dubber91

no need with the NFauto one.

Its not threaded....its a very fine wire with sensor on the end. You can put it into your top hose and clamp it in place with the jubilee clip holding the top hose onto the radiator.

Steve

dubber91

you can see from this picture.....£24.50 is a bargain!

http://www.nfauto.co.uk/cooling_fans.htm


Dominic

Quote from: mpk490pdominic, did you have any problems with overheating before fitting the fan?
Thinking about getting one as i think my viscous is fubared and she gets warm when you go over 110 for more than 2 secs which is not good!
Mark

Mark, I had no probs with overheating whatsoever, if fact, because the fan clutch was mullered, the engine was running too cool due to the fan constantly turning at high speed. It made loads of noise and robbed power so fitting the electric fan was an alternative to repairing the fan clutch mechanism. I also wanted to tidy up the engine bay a little because the big shroud duct associated with the normal fan is a bit annoying...
It may be worthwhile checking your thermostat first, and the other components of the cooling system. You can check the standard engine driven fan with a stroboscope by getting the engine up to normal operating temperature and at 4200 rpm the fan should be doing approx 1400 rpm.

I do find the engine runs quite a bit hotter now (haven\'t set up a proper temp gauge yet so dont know what she\'s running at) but I think it\'s closer to what it should be. Before fitting the fan the temp needle on the dashboard used to be about 1/3 of the way up and very rarely went above this, now it runs about 1/2 way up the scale and goes up a bit at slow speeds/in traffic. The fan comes on after sitting for about a minute or so and sometimes when pushing hard. I think a more efficient/bigger radiator would be a good next step in combination with the electric fan.

No need to make hole in rad for thermo sensor with Kenlowe fans either, same system as NF auto through top hose.

Dom

MikeLMR

if its overheating at 110 ... are you REALLY sure it is the fan thats at fault.

110mph air is going to be doing the majority of the cooling, cooling fans are for cooling at slow speeds. we\'ve run rally cars with manual fan switches and they are only ever used when stationary or when going sideways round muddy whites at slow speeds/high revs :Giggle

It just points to antother problem IMHO so a fan might be a waste of money that could be spent on the real problem.

have you tried it without the mesh in the front grille ?

mpk490p

i thought i had solved it with the fan belt but it could be the grill, the nose is coming off soon to be repainted so i will take the grill out and try that, shame i liked the look, to be fair the car is fine when i sit in traffic, think i was just looking for another answer when i knew all along it was the grill!
found a good 16" fan on ebay though £45 postage item number 110047960066

Thanks
Mark