fitting electric fan to old 110

[snezza69]

Hi all, I am trying to fit an electric fan (borrowed from a Mondeo) to the rad on an 83 110.  rather than fit a manual switch to the dash I am looking for suggestions for fitting some kind of thermostat switch to automate it.  Am looking at the kenlowe option at the moment, does anyone have any alternate options please?

[muddyweb]

I use one of these from Merlin Motorsport.  Not the cheapest way of doing it, but I felt it was the best way to get control without faffing around, sticking things through the radiator, or trying to get a sensor to seal.

[Hightower]

Tim,

Did you get the fixed or variable thermostat?

[snezza69]

Thanks Tim,
How much did it cost?  I have ordered the part now hopefully it will do the biz.  I have got a thermostat with adjustable temp, but it wasn't as cheap as I would have liked.  On top of all the rest to get the money pit working.  But I think this is all I need now to be good on the road.  Looking at the pic, does the sensor fit around the top hose?

Oh and while I am here, the fan I am fitting is a dual type.  Should this be fitted in serial or parallel.  Any other tips as I have heard that some fans require quite a bit of juice to start up (up to 40 amps) should I use this type of wire to be safe?

[V8MoneyPit]

Yes, there can be a peak in current draw. Make sure you are using cable and connectors of a suitable rating. I use a pair of Kenlowes and the lights dim as they kick in, then pick up again after a second or so.

Also, don't forget to wire in a switch so you can disable them for wading.

[muddyweb]

Hightower : it's a variable type.. little control on the top of the housing
Snezza : Can't remember the price TBH.   The aluminium housing goes in the top hose, one chop and 2 jubilee clips.
If you have a twin 12V fan, then they would be wired in parallel

[snezza69]

Well I managed to wire in the fan but only worked when one fan was live.  When both were connected the 35amp fuse blew.  As the fan was from a Mondeo, I thought I'd go to Ford (big mistake) to source the relay.  They didn't hold them on the shelf and couldn't even tell the correct ampage for their relay.  Gambled on a 40 amp but when I rewired it still blew the fuse.  Now I have the Kenlowe which is working fine, I do not seem to have any probs with overheating (one fan cools it OK).  Will consider a second Kenlowe to run the second fan on a higher temp for when it really gets hot.
If anyone has any other ideas to run both fans off one switch please let me know.......

[muddyweb]

As mentioned earlier, its probably due to the startup current of the motor.  One option would be to use 2 relays, one on each fan, each with its own fused feed.

[wizard]

I have a few of these if any one is interested.



wizard :twisted: