Patience, cardboard and a 32mm open-end wrench. Hold the fan against the water pump hub and slowly turn the clutch nut with the wrench until it engages the thread, then spin it on until it bottoms. Put the wrench back on it, whack it with a hammer to finish tightening it and you're done.. Remember, it's left-hand thread.
Quotes to live by:
guessing gets expensive
nothing is more expensive than a cheap BMW
buying a ratty example (of a BMW) is a parasitic relationship.(and you ain't the mosquito)
Ken Kanne, Silverhill, AL, E36 Forum Mod/Craigslist addict/Hoarder of all sorts of stuff
1995 318is "Bebe"; 1993 325is "Elvira"; 1985 635CSi "Katja"; 1984 633CSi "Sylvia"; 1987 325is "Odette"