Viscous fan removal...Help!

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mfw898y
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Viscous fan removal...Help!

Post by mfw898y » Fri Mar 30, 2007 5:43 pm

Hi all,
I have been given an electric fan to try and sort the overheating probs in traffic. I have managed to get the plastic blades off the viscous fan but can't get the midddle bit off the shaft. It just spins independently of everything else. I've removed a coil type spring from the middle thinking it would reveal something but nothing. Does anyone know how to get it off so I just have the pulley left to drive water pump?



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Post by Coops » Fri Mar 30, 2007 5:48 pm

there should be like a large nut to undo while locking the viscous up some how
Regards Tony C (COOPS)
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Post by mfw898y » Fri Mar 30, 2007 6:05 pm

Thanx for the quick reply!
There is a nut behind the viscous bit but it seems i need 2 pairs of hands to stop everything turning. The missus will go mad when she see's all the oily hand prints on the laptop :lol:

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Post by Coops » Fri Mar 30, 2007 6:22 pm

not sure how they come off on the ford,
but you should be able to loch the pulley some how and un do the nut, if im correct its a left handed thread too,
Regards Tony C (COOPS)
Image
MS2 V3.57 Ecu mapable efi and wasted spark ignition.
Rotrex C38-91 supercharger and Cossie RS500 Intercooler @ 14psi of Boost.
Sponsored by: www.extraefi.co.uk & www.interpart.biz & www.caprisport.com
Web site: http://www.capriracing.co.uk

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Post by mfw898y » Fri Mar 30, 2007 6:37 pm

I've tried the normal way and it wont budge. Gonna try left hand in morning

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Post by spookie » Sun Apr 01, 2007 9:24 pm

Hi, it is a left handed thread. You will need a thin spanner to fit the nut behind the unit. I think the last time I did one I held the viscous coupling by wedging a large screwdriver against the bolt heads/threads.

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Post by mfw898y » Fri Apr 06, 2007 12:45 pm

Managed to get it off :D . ended up clamping the pulley with mole grips. (it also helped no end knowing it was left hand thread :wink: cheers peeps)Put the metro fan in top left hand corner of rad and boy does it shift some air. Strangely though, concidering it moves 10 times more air than the viscous fan, it will only hold the temp at what it was when you switch it on. It can't actually lower the temp. Interesting experiment though, you just have to keep a close eye on the gauge.

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Post by spookie » Sat Apr 07, 2007 9:00 pm

Hi, if you still get cooling problems check your radiator. I had a rad that although seemed ok, was partially blocked. New radiator made a whole load of differance.

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Post by mfw898y » Mon Apr 09, 2007 9:31 am

That will be next move i think

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