I faced a significantly stuck fan 24mm nut when I did this project. I found it helpful to place the end of the pulley wrench under the edge of the AC bracket to provide more leverage and then carefully work the nut out with a 24" breaker bar. Be careful not to push too hard or you could damage the AC bracket and or pulley.

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This post was auto-generated based upon a question asked on our tech article page here: Pelican Technical Article: Fan Belt Replacement - 911 (1965-89) - 930 Turbo (1975-89)

Thanks for the tip.

- Nick

Had the same problem and found the same cure. Well, it did take two men on the bar and one guy holding the factory wrench in place. I believe that PO's mechanic had tightened nut using air gun despite the very low torque recommendation in the manual.