Have any of you on here made your own wiring looms for the radiator fans. Was it easy to make and what electric parts did you use.

Have they been reliable and do you have any pics of the looms.

 

I made a tempary one on a switch but if it's permanent you'd be best off spending the Ł50ish for a proper one from NYRSS or the likes. They're simple enough to instal

 

Ive just been looking in my haynes manual. I will need a permanent live from the battery. A switch live from the ignition. A earth then power from the relay to the fan switch.

It looks simple to make. I just think 64 quid is a lot of money for what the looms are.

 

I made my own and added an overide switch as well. Was very straightforward.

 

This is incorrect, the switch completes the ground for the relay, the output goes directly to the fans. (There would be no point in having a relay, the way your thinking)

Also you don't need ignition control (In actual fact I don't think the Cosworth is) don't forget to protect the supply as close to the battery as possible with a fuse!

Martin

 

Hi Glenn,
Theres a diagram and pretty good post on the RS Owners website of how to do it.....

http://bbs.rsownersclub.co.uk/showthread.php?t=347745



Cheers,

K

 

The wiring diagram isnt for a cossie mind so I wonder if thats why it wrong.

 

That wiring diagram looks complicated to me lol.

 

So how are the fans wired up in that diagram on the rsoc. Is there live wires coming from the battery to some fuses then to the relays then from the relays to the fan switches.

Obviously the relays will need to be earthed.

 

I found this wiring diagram on google but this one also has an ignition live.

 

The live does not connect to the switch (it can't, hence the why a relay is used).

The relay ground connects to the fan switch, when it closes this then completes it's circuit and in turn the live to the fans.

This is the OE setup, and all models are the same.

Your diagram shows this.

Martin

 

wire it as per that diagram, but with a permenant +12v to pin 85 not a switched live. this way the fans will keep running when the engine stops as per the original ford setup.
I wouldn't bother with an override switch either. if everything else is in good working order there is no need.

 

Thanks fraser. Did you make your own loom??

 

i would just get one from paul at nyrss, so simple to fit, looks neat and you get a brand new fan switch aswell.

 

We just made one for the mk2 escort where doing not too hard
Thinking of making them to sell soon fully braided and finished

 

If they were 40/45 quid with postage I would think about it. The cheapest one ive found is 64 quid.

 

Bet the parts only cost Ł10

 

Have a look on http://www.vehicle-wiring-products.eu

 

Stop been tight blow james off at msd and he mite give you it for Ł60 posted... you should know better glenn buy cheap buy twice... do the job properly, Ł64 is well spent if the engine over heats and boils over... head gasket plus skim plus labour ŁŁŁ
i know what i would rather spend You know im speaking the truth bro... Iv put my order in with james i dont fancy my new motor boiling over ... thats if it ever runs haha

 

https://www.facebook.com/pages/CW-Looms/113655358704668

 

Ive got a loom sorted now.