Any advice on removing a stuck prop? I removed the nut from the end of the prop shaft, near the prop. The prop was not on the shaft very tight. I can get the prop to slide on the shaft about an inch and a half. It appears the problem is the key is stuck to the prop. The prop will slide on the shaft, but when the key hits the threads of the prop shaft it stops. I have tried to push the key further up the shaft, but it will not budge. The prop and the key move together.

The prop is in perfect shape. I think someone installed it incorrectly (I bought the boat in the fall). 98 Mobius DD if it matters.