Thread: Kenlowe vs Viscous fan

Yes Peter,,
I'd start a new thread.

I've always wondered about electric water pumps myself

I think the water would stop a Viscous fan from spinning under water, I have stopped them with a gloved hand while running by simply grabbing a blade, not a good practise though, Regards Frank.

I think the water would stop a Viscous fan from spinning under water

Ha ha !!!
It didn't stop mine spinning, and I had turned the car off for a short swm before crossing Cannibal creek.
The good part if there is such a thing is that the 300Tdi fan I have in my 3.9 RRC is glass filled plastic and while a blade broke when it contacted the radiator it remained attached and went inside out, and just made a helluva noise.
One onlooker suggested drilling a hole in a blade and the shroud and zip tying it still. That would maybe work.
Regards Philip A

Petrol

I had a 16" fan on my Range Rover - didn't change the fuel economy that much, but it was a lot quieter, good for low range stuff (no manual on switch though, I'd recommend this if you do a lot of slow, low range) as it would work when the engine was going through the slow stuff. Only recommendation for river crossings - pull the fuse / relay , in case it comes on - it's closer to the radiator than a viscous fan.

If I had another petrol, then I'd put the fan in, as it's only(!) for the radiator.

Diesel
Hmmm.... in two minds about this. I still have the fan and the engine is sooo quiet without a viscous fan (at start up at least). Fuel economy won't be affected much at all. Risk of overheating is my biggest concern here (both radiator and air intake), as the viscous (seems to) puts a lot more air through, and I now have the intercooler for the turbo. What do the latest D4s have? - if it's still viscous, then stick with that.

The sensible way to decouple your viscous fan clutch is to

Let your engine cool a bit if it is hot.

Turn off the a/c

Fast idle the engine (2500rpm) for 30 seconds or until the clutch decouples, ie the fan goes quiet.

Proceed gently.

If in doubt remove the fan.

I suppose the AU Falcon twin fans could be used on the D2 as they have been on the D1, has someone tried it?

On a hot day in Oz a thermo won't pull enough air to keep your engine cool.

Falcon fans *may* be ok, but marginal.

Nothing beats the pull off a working clutch fan.


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