Alignment
Hello Richard, Thanks for your note. To align the transmission coupling to the shaft coupling you will need to most likely adjust both the fronts and the rear mounts. This can be in height and in side to side. I would first start by having the vessel in the water and after it has had a chance to sit for a week or two. This will allow the hull to get back to its normal running shape. Loosen the four bolts, which keep the two coupling halves together, to the point where the coupling halves can be separated. Place a feeler gauge between the halves sliding the two couplings together again. Place the feeler in between the two halves at the 12:00 position of the coupling marking the face of the coupling, with something like a black marker, for future reference. Remove the gauge; rotate the coupling to 3:00 measure at marked position and again to 6:00 and again at 9:00. This will result in gaps of either equal or unequal dimensions. If gaps are equal one could assume that the coupling halves are aligned. If 3:00 and 9:00 positions are not equal in dimension of gap, the mounts would then have to be adjusted to close or open one side or the other of the coupling face. This also holds true to 12:00 and 6:00 positions. The later is usually easier because it involves up and down movement and not side to side like with the 3:00 and 9:00. If you can maintain and hold a .003 gap difference throughout the total coupling you are within most company’s tolerances. Hope this helps. Kevin
