D
Danny Perez
shaft rake
Shaft rake, the angle at which the shaft exits the hull, is the first thing to consider. The degree of rake is determined by the boat designer and must fit into the maximum and minimum angle of tilt for the engine manufacture. This shaft rake is generally set for you by the boat manufacturer through the engine bed and/or the length of the strut outside the boat. Therefore, aligning the shaft should be as simple as matching the face of the transmission coupling with that of the shaft coupling while adjusting the engine legs until the coupling faces are parallel top to bottom and left to right. All the alignment is done while maintaining the designed shaft rake - well, this is what we are taught in US Navy schools and those engineers are much smarter that I am.
Shaft rake, the angle at which the shaft exits the hull, is the first thing to consider. The degree of rake is determined by the boat designer and must fit into the maximum and minimum angle of tilt for the engine manufacture. This shaft rake is generally set for you by the boat manufacturer through the engine bed and/or the length of the strut outside the boat. Therefore, aligning the shaft should be as simple as matching the face of the transmission coupling with that of the shaft coupling while adjusting the engine legs until the coupling faces are parallel top to bottom and left to right. All the alignment is done while maintaining the designed shaft rake - well, this is what we are taught in US Navy schools and those engineers are much smarter that I am.