Thanks Mike. All this is really helpful and I appreciate your time.......... a tip is in order!!!
I'm surprised that Mercuiser's wesite is not more helpful regarding tracing info on these older units. Theres 1,000's out there still running strong. I'll wait to hear from you. Please let me know if there is anything I can do for you on my end to help. Bob
Ok Bob,
Even though I can't tell which drive IV or V it is it doesn't seem to make a difference with these two books.
Mercruiser parts list/book is 90-13668 17.95 Mercury warehouses show to have 1 left in Fond Du Lac, WI.
Mercruiser service manual is 90-815526 84.95 Mercury has 3 of these/same warehouse.
Any Mercury dealer can order these for you.
Best of luck with your project/sounds fun!
Mike
Marine Mechanic
26 years certified marine mechanic and past state certified teaching degree