please help with fan

[psenayme]

my 93 325i e36 is overheating, i have seen that the fan is not running fast enough so tried to change the viscuss fan, but i cant get the old one off because i can't stop the pulley behind from turning with hexagon bolt in front of it,

i hope this solves the problem,
yhanks for your help

[jhstealth]

put the wrench on it while someone holds one of the four bolts behind that larger bolt and then if its really hard hit it on an angle with a hammer to scare it loose. Thats how i did mine then i installed an electric fan

[drtweak1992325i]

Yea i had made a special took with a long handle that holds the 4 bolts on the water pump and then i can loosen the fan from the clutch. Its not that hard...just getting the machines to make the peice is