Anyone had a stuck crank pulley?

[Brendan2234]

Trying to do the cambelt on my 172 but the crank pulley isn't floating, it's stuck on the end of the shaft. There's a couple of bolt holes on it so I can heat it up and try and rotate it to spin it free on the shaft but I'm worried about bending the locking pin, anyone else had this problem?

 

[bloke]

m4 grub screw in each one, spray of penetrating fluid and get a short bar between them and work it free. when it's off clean the rust out of it and off the end of the crank.