I purchased a 1993 Catalin 42 that came with a Autoprop. I love the prop but when I shift from forward to reverse (or vise versa) there is a loud thud (or sometimes even a bang) as the blades swing around. I always give the blades time to feather before shifting and make sure our boat speed is not to fast. I talked with the broker who sold us the boat and he assured me it was the right prop for the boat(he ordered it).
is there some maintinance that should be performed.some times I fear the key on the prop shaft may not take this amount of torque. we sail the great lakes so the boat will be on the hard soon, would like to clear this up before next season.
Thanks for your help on this