Hit a bar last October. Noticed excess vibration. Hauled boat- messed up 2 blades of 4blade nibral dyna quad. Pulled prop and sent to Hale (Conn.).
While boat was in slings we ran engine to check shaft vibration/rotation and it appeared true from inside engine comp and behind the strut.
Launched boat yesterday w/ prop sent repaired by Hale. Felt vibration as bad as when we hit the bar. Lifted engine hatch and saw (and felt)excess vibration on dripless shaft seal and shaft as well as air filter cover on the Volvo 63L jumping around.
NOW question is: Is it the prop, is it the shaft, is it the tranny.
Is there a way I can isolate the problem.
I'm hauling on Tuesday to remove shaft. What else could/should be done.
Boat: 33 Fortier single screw,IRM 220 trans, Volvo63L.
Thanks for any help/ideas you may have.
If you haul out,before you pull the shaft,clamp a strait edge to the rudder so it goes to the end of the shaft to give you a reference and spin the shaft by hand.Kind of like rolling a pool stick on top of a table.
If the wheel is good it sounds like you may have bent the shaft near the coupler. I would pull the shaft and have it check with the coupler attached. This will also make sure that the coupler is faced to the shaft. lastly if you know the two blades were bent and corrected, did the wheel get damaged again on re-install when the wheel was blocked to tighten the nut and are you sure that you are not riding the propeller keyway on the re-install of the wheel?