Fan clutch Removal Please Help

I have a 1987 300e. The fan clutch is making a clicking noise, when I touched it the pully felt loose how do i find the hole in the pully for it to stop turning when i'm removing the clutch.

The repair involves a new fan clutch. To replace, you will need either a large 8mm hex wrech or the special thin socket sold at any MB dealer. There is a special tool which holds the fan while you break the freeze of the very tight bolt. Once the fan is removed, replacing the clutch is fairly simple. P.