Hi all on my 4.2 I’m trying to remove my viscous fan to make life easier changing my alternator.

Now on my m62 and every other car I’ve owned a 32mm spanner and a few smacks to the right loosen it off... now my 4.2 is a 36mm and I hit it about 20times with a sledge hammer and no dice... any ideas?

Also should the 4.2 have an electric fan as there appears wiring but looks blanked off from factory? Current stable:
2006 BMW M6
2007 4.2 V8 S/C FF
Gone:
2002 4.4 V8 FF

I had to do this on the 5.0 SC a few weeks back and in the end used a Coil Spring Compressor between the 2 spanners and wound them down.

I always use a "heel bar" , pointed end on the nut and a good whack with a 4lb hammer , keep the bar as vertical as you can and 3/4 the way across the nut (to the right hand side when looking down at it standing in front of the vehicle), will give you a better turning moment of torque, normally shocks them off with no problem , remember its a left hand thread !

4.2 is all dancing and singing electric controlled you will have a connector that goes into the rhs of the rad pack cowling as you stand in front of the car looking back.

I thought that it would be couple of taps & come undone when I did mine I even had the correct spanners, but ended up making my own to get more leveridge,