Thanks to all for earlier replies to my questions about pulling the LU on this motor and determining yes/no on the O-ring.
It’s time to reassemble. The motor is a long shaft, neutral clutch. I am having difficulty with getting the driveshaft, water tube, and clutch pushrod lined up, with the biggest challenge being the water tube. I have tried it right side up, upside down, and horizontal. I have not tried using a long threaded rod to hold the extension casting in alignment. It has to be a simple matter. What am I missing? Thanks!