94 D1 3.9 V8 fan

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Originally Posted by wandera

when it "cut in" before it used to roar, i noticed when it was hot on the trip back from Broome it wasnt making the same sound, i perservered till i got back to Port Hedland and put a screwdriver in the fan and it didnt flick the screwdriver out of the way, it almost stopped, rough i know but effectiveand the temp was up over 3/4 way above where it used to "cut in"
I had the same problem with the fan on my cruiser and that is how my mechanic checked it

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Sorry, but as others have been saying (including you), it looks like the viscous coupling has "gone west". :):(

If you can be bothered, check at your local Repco (or equivalent) store for a generic viscous fan hub. As mentioned the Ford one is a direct substitute if the Disco one (or RR one) is not listed.

BTW, it's a lh thread, 32 mm a/f undo for the viscous hub nut. Crack the thread before you take the drive belt off. Again, fan hub spanner from auto parts store.

Better than thermo fans, as long as everything else is right.

PM on the way.

HTH

Pete

Thanks all for your input, i have decided to stick with the original viscous coupling, im off to Sydney tomorrow so ill be away for 2 weeks to meet my 1st grandson, ill keep you all informed to what the outcome with the over heating was after i get back and get the disco going again... once again thanks for all your input i appreciated it all
Grandpa Dave :D

Hello Wandera

Sorry to be so slow to comment , I have only just seen this thread . Had the same problem as you . Locked the fan by removing two of the four clutch retaining bolts and bolted on two 2mm thick steel straps , about 15mm wide , 55mm long , bent so that the tails were adjacent the fan drive shaft . secured the straps to the drive shaft with a hose clamp . My mechanic was quoted $660 dollars for a fan and $126 for a lower radiator hose . Visited Landrover in Mitcham and got a clutch for $145 and a hose for $51 ! I found as you did , that the fan is required in the cruise if towing or not towing but cimbing hills .

Hello Again Wandera

I should have added , I am in Port Hedland until 20FEB , let me know if you want me to help to temporarily lock off you fan .

Quote:

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Originally Posted by Pierre

BTW, it's a lh thread, 32 mm a/f undo for the viscous hub nut. Crack the thread before you take the drive belt off. Again, fan hub spanner from auto parts store.

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The 3.9 V8 nut is 36mm RH thread. It is different to the older ones.

36mm spanner = Ford V8
32mm = Ford 6