Originally Posted by exgmguy
Sometimes the keyway gets bound up and i can be a little tough to remove. A gear puller should do the trick, or you might try GENTLY prying at the pulley with a flat screwdriver. Do it evenly around the pulley.
If the impeller has been rubbing like that then the small high speed rear bearing is/or was probably shot, causing play in the shaft.
And mine makes a little noise when you turn it by hand too.
Have you already had this blower running on your Jeep? What kind of Jeep?