Buy plenty of grease. As you
pump it in the old stuff pumps out so you can replace most of the grease that's in the prop if you
pump lots in.
In these
remote parts you cannot get specialised products so I have used ordinary
lithium based
marine grease without any problems.
It's a messy job, make sure you do it after painting the prop ( if you do that) because grease will ooze out for days .