A very interesting you tube video on how to do this. I have no lathe and am thinking i could do this on my boat lift. or you could do it on your trailer and spin the prop rather than spinning the shaft. not sure if i would attempt this while the engine is in idle forward mode but it would be an interesting video to see.........
https://www.youtube.com/watch?v=2ozh4JjoWm4


I couldn't resist the title