Originally Posted by mrphotoman
That is what I did too, mine came off and went on easy though. I think it took me about 5 minutes for the swap so I was lucky.
You can use a little bit of WD40 in there to help get it off just be sure to wipe it off good when you get the pulley out of there.
Penetrating oil works best.
Remember WD40 is not an oil.
The term WD40 stands for (water displacement formula #40)
While everyone knows it does offer a bit of lubrication it isn't the best this situation. Fact is it can actually lead to a stronger bond between parts by allowing them to slide into a "cocked" possition easier then drying losing any lubricating factor that it once had.
Please no arguments on this, I'm sure someone has a story about getting their Uncles' hand unstuck from some piece of farm machinery with good ol' WD.
Just try "penetrating oil" should help it slide off.