alignment
Hello Rick, Its hard to determine what your boat yard is speaking about “receiver”. In order to see if a system is out of alignment you have almost completed half the alignment. I think what you are describing is that when the shaft coupling was re-installed back to the shaft and it was drawn up to the transmission coupling, it was seen that the two coupling halves were on different planes to each other. I would assume that once the coupling registers were mated the drop was gone. The fact that the shaft was sagging and the two coupling halves were in different planes could mean that gravity is alive and well in your boat yard. I would suggest that the coupling be separated and kept together by the register. Place a feeler gauge between the two coupling halves at 0 degrees. (mark coupling with marker so you can measure same location of couplings. Rotate couplings 90 degrees and measure gap at mark. (hopefully the same) Rotate couplings another 90 degrees and measure gap at mark. (again we hope they are the same) Rotate couplings again 90 degrees and measure gap at mark. This now has given us four gap measurements. If any of the measurements were off to each other by -.003, you will need to align the couplings. You will need to fine adjust the engine mounts in order to move the transmission coupling face and not the propeller shaft. I would suggest that you do not align the system until the vessel is placed back in the water and the hull has had time to relax. (two weeks-ish) Hope this helps Kevin.
