I have a volvo penta 3 outdrive, and when i try to lockthe gear in fwd or rev to remove the prop nut it won't lock. what is wrong???? Me huh!!
If you have a duoprop drive, you put the engine reverse to remove the aft prop, then in forward to remove the forward prop; you could also start the engine, place the drive in gear, and then shut down the engine while its in gear.