944 Cooling

[me01mp]

Hi,

I've got a 1986 8v 944 and the cooling system broke last week, the fan stuck itself on, so I'm pretty sure the Thermofan switch is bad. Only its stuck itself off now.. so i'm hoping the switch has just locked 'off' now, and not that i've burnt out the fan motor. The Mk-1 nostril suggests not as it doesnt stink of melted coils.

I can change this, but whilst rummaging around I noticed that I have just one cooling fan... All the literature and workshop manuals i've looked at suggest I should have two.. Can anyone shed any light on the change.. was it a cost down on later models??

Any help or other pointers of changing this switch would be great.

Cheers

[basil brush]

IIRC Models with aircon had 2, without had 1.

[anonymous-user]

I've just looked at my 86 Lux and that has one.

[JT944]

i have a mate with a 1986 944 and the small pipe from the rad to the header tank was blocked .it might be worth cheking when you put a new switch on.

[Fatboy]

My 1988 2.5 lux only has one fan.

If it's the haynes manual you're talking about, I wouldn't worry about it not tallying - I'm pretty certain they weren't looking at a 944 when they wrote the 944 manual There's just too many things that are wrong...

[ninemeister]

Only aircon models have two fans.

You can test your one fan by shorting together the two fan wires with the ignition turned on.

To change the switch you will (ideally) need to borrow a 29mm A/F deep socket, you can do it without draining the system if you are fast getting the new switch in place, but do not overtighten the new switch as it is being srewed into a plastic radiator end tank. Remember to check the water level after the engine has run.

[me01mp]

Thanks all,

I disconnected the thermofan switch wires and sparked them, the motor runs fine, so its got to be the switch in the rad.
I might well try the quick switch.. its that or bleed off a few ltrs and refil.

At least i know the fix now, so should be home for Christmas!!