A guy at the club gave me this prop and said he had it on his Maxi
with the same engine
and drive and that it is an "original" Volvo
prop. There is no paperwork with it and no identifying marks other than an "alphabetical" legend on the spline shaft you can see in the picture. I have googled and searched but can't identify it.
It is 14 1/2 inches in diameter at the widest part of the chord and 5 1/2 inch chord at the longest part of the chord. There is obviously a great potential for motring speed improvement and handling in reverse with this prop compared to the folding prop I have now.
I have a Volvo-Penta MD2010A (10 hp) and 120s saildrive
with a folding prop. I am interested to know if anyone has any ideas on how to rig this prop.
The internal stop and dog does not appear to have any adjustment at all.
The pinion gear
that splines into the shaft has an alignment mark and the shaft has a graduated alphabetical scale although all the teeth are uniform and there are no "master" splines. Regardless I have set the spline at "A" and I have set the spline at "V" with no change in the pitch
I have set the blades into the pinion evenly so they both fair together with the dog on the shaft centered between the stop in the case half and it appears that the only adjustment I could make is to rotate the pinion gear
so I get a higher pitch
in forward than in reverse before the dog hits the stop but it seems if I do this there could be "zero" pitch in reverse or even negative pitch.
Other than trial and error - Any ideas?
PS - It appears that the shaft and nut are wedded to the s-drive shaft and then the removable pinion slides on the shaft, the blades are mated and the halves are put together. The implication is that if there is adjusting to do on this prop the boat will be hauled multiple times or I am diving
and assembling underwater - not a happy prospect with 6 allen boalts to install - LOL.
Maybe I know the answer - multiple hauls outs...