The Ford Capri Laser Page

Hi guys - it's been a while!

This has been asked a million times, I know... I've been through every post. I'm wanting to get shot of the viscous fan. It's currently a fan I've nicked from a Land Rover and is oversized and probably sapping a few ponies. I also like the idea of having lots of space around the timing cover etc.

How do people generally wires these up? And where do you get your 12v feed from? I want to get a thermostat to control it, don't trust myself to manually switch it on/off.

First battle is getting the old fan off... I'm going to try the screw driver & hammer trick.

Cheers!
Nic

I've done a couple in 2.8i's by fitting an adapter into the bottom tank of the radiator and wiring up the fan via a Ford Focus fan switch screwed into the adapter.

Measure the internal diameter of your radiator hose and get one of these to control it

https://m.ebay.co.uk/itm/Stoney-Racing- ... SwUH5aUJym

Just search universal fan switch on ebay

Avoid the ones with the copper pipe that get sandwiched in the pipe with the junilee clip that are adjustable look like a cooker knob, they are utter shite

Thanks for the heads up! Deffo worth looking into. I was tidying up the loom of the car last night figuring a good place to nick 12v. I removed a aux light which was connected to the second fuse prong from the back of the car. This could be where I nick my 12v (assuming it's switched).

Does anyone know what the inner diameter of the top coolant hose is (Pinto)? I'm looking for the right size thermostat.

Toxcity wrote:Does anyone know what the inner diameter of the top coolant hose is (Pinto)? I'm looking for the right size thermostat.

I think it's a 32 mm Nic. Here's a couple off the bay.

https://www.ebay.co.uk/itm/32MM-HOSE-AD ... Sw2xRYUq1D

https://www.ebay.co.uk/itm/Stoney-Racin ... SwUH5aUJym

With the second one it says in the description that the 100c switch is right for the 82c thermostat.

I'd think about using a relay in your wiring, dependant on how big and powerful a fan you intend to use. The second fan switch says it comes with wiring diagrams.

Hi Paul! Hope you're well.

Brilliant, 32mm it is. On at 100oC that seems a little late? What would be the down side of going for the on at 90oC? I think I'd like to keep the coolant temp below boiling point if possible. Saying that... I was never aware of what the temp was with the viscous fan.

Toxcity wrote:Hi Paul! Hope you're well.

Brilliant, 32mm it is. On at 100oC that seems a little late? What would be the down side of going for the on at 90oC? I think I'd like to keep the coolant temp below boiling point if possible. Saying that... I was never aware of what the temp was with the viscous fan.

When the cooling system is pressurised the coolant can be up to 112 - 115c due to being pressurised. The pressurisation raises the boiling point.
Most modern in - radiator fan switches are around 97c upwards.

Here's a link to a Fiesta one and as you can see in the description the operating range is 103 down to 98c.

https://www.ebay.co.uk/itm/Temperature- ... SwnbZYECjX

Righto, 100oC it is! I guess I don't want the fan running too often if it doesn't need to.