up with this for the newbies, and some more pics
http://img.photobucket.com/albums/v4...IMG_0510-r.jpg
dimensions
Fan Clutch Tool Dimensions for the DIY'er... - Bimmerfest - BMW Forums
Fan Clutch Tool Dimensions for the DIY'er... - Bimmerfest - BMW Forums


Belt Replacement Instructions (Incl. Fan Removal)

How to Replace Hydraulic Fan Clutch of BMW E34 M50, DIY BMW E34 by Assoc. prof. Boonchat Netisak