"Robert,
I wwent thru this
"Robert,
I wwent thru this same issue about 8 weeks ago. Pulled the engine and V-drive as a single unit. It was much simpler than trying to get to those 7/16 bolts that keep the flywheel sandwiched between the bell housing and the cover. Trying to get to the damper bolts thru the timing hole is a pain as well and the entire job took about 25 minutes to do were it not for removing the freakin engine. Dave was right on target when he mentioned this to me at that time.
I had one hell of a debate deciding whether or not the swap materials for the motor mount shims. AND, after MUCH discussion, I went with new plywood. Heck, the old stuff lasted for 28 years.
Engine alignment is not technically challenging but is a MOTHER if you have v-drives. If you imagine a clock face, you will need to have the mating surfaces within.003 at the 12,3,6 and 9 o'clock positions. To do this you will need to adjust the mounts up or down with a open end wrench and then slide the engine left or right by loosening the bolts on the motor mounts. Additionally, the boat should not really be on dry land as the hull takes a different shape when blocked. From POOR alignment when we had gotten this boat, the shaft log was nearly worn thru from the shaft spinning against the edge. Additional wear on cutlass bearing and other vibrations are likely with poor alignment
I did replace an angle iron mount on one corner of my stringer. Years of corrosion had reduced its' dimension by half."