You don't say what make it is. Are the blades free to find their own pitch by rotating on a bearing? if so go to www.autoprop.com. If its one of these contact Bruntons at firstname.lastname@example.org You will find them very helpful.
Otherwise try and find a manufacturers name somewhere....
it,s a sabb prop,
what i want to find out is how to replace the thrust ring,or rings.
In the sabb parts book they just have a diagram,no instrutions of how all the parts go together.
I hope this explains things
thanks for your time