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Old 12-06-2012, 10:01 AM   #51
WDE46
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Join Date: Sep 2012
Location: Virgo Supercluster
Posts: 8,003
My Ride: 2004 330Ci OBM
Quote:
Originally Posted by lcoleman View Post
...the lateral load from the tension of the belt on the pulley is in all likelihood greater than what miniscule force is applied tapping the fan off. Have you ever done one with a hammer? It's easy, and much better than risking a bent a screwdriver (which generally requires a lot more force). I have done both, and will never try to "pry" one off again.
Physics says otherwise. The screwdriver method won't send a shock down to the WP shaft. The force applied will be smaller for a longer duration. The hammer method will apply a surprisingly large force for a very short time. If you want to do it that way, you'll probably be fine, but I just don't like wacking things unless I know they're sturdy (control arms). To me it's not worth the risk of either damaging the WP or screwing up and causing collateral damage to other parts I don't have lying around.
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