Thread: Viscous fan removal

that mount was already mostly gone...

generally they wont come off with a shifter, you need the right size spanner that doesnt touch on the pully,

you may need to get in with a pencil torch to heat up the nut before you start.

it may be rusted in place or has been fitted with loctite. Do not use a thread locking loctite, use an antisieze, the rotation of the pully that drives the fan causes the thread to try and tighten up.

when you put it on make sure it seats home and dont try to wind it on by starting the engine. sure its quick but it does it up to about eleventy billion NM.

if the engine is turning you dont have enough torque reaction to get it to undo. sometimes gently pulling on the end of the pipe and then giving the pipe a smack with the hammer will be enough to break it loos without locking the engine otherwise you need to lock the engine by means of putting it in gear, getting a socket on the crank gear, hydraulicing a cylinder, or locking the flywheel.

Sounds like it has been loctited on like mine was. Had to use a lot of heat and an air chisel to get it off. Normally it should take just a whack on the spanner with the palm of your hand to loosen.

Originally Posted by Kevin B

I wedges a bar from the pully to the chassis and put an extension on my spanner and leant on it, it lifted the engine up and broke the engine mount but still didnt move

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You should have a spare V8 engine mount in the centre of the Vibration damper attached to the front diff snout, Regards Frank.

Originally Posted by Kevin B

Its on my spare truck in drive Ron which is not drivable

No, I meant I'll go to you. BTW, have you finished with my engine stand?

Greater force to stop the pulley moving and a bigger swift hard smack (clockwise from the front of the engine as its a left hand thread)...it will come undone. It needs to be a narrow flat spanner to fit and not bind....I bought a viscous fan spanner....made the job easy.

Originally Posted by theNEWT

Greater force to stop the pulley moving and a bigger swift hard smack (clockwise from the front of the engine as its a left hand thread)...it will come undone. It needs to be a narrow flat spanner to fit and not bind....I bought a viscous fan spanner....made the job easy.

Please, don't assume the other posters don't know the correct direction of undoing. The fan on serpentine V8 engines has a normal RH thread and undoes anticlockwise. The fan on a vee belt engine is the one with the left hand thread. The simple rule is: always undo the fan coupling in the direction of fan rotation. Ignore the crankshaft rotation.

Originally Posted by bee utey

The simple rule is: always undo the fan coupling in the direction of fan rotation. Ignore the crankshaft rotation.

Very true....my apologies..

Someone had locktited the fan on my D2 TD5 when I bought it.
I would like to strangle that person if I ever find them.
Regards Philip A