Mercury Mariner 4, 5 102CC Sail 1990 Outboard Service Shop Manual, Page 105Get this manual
10lnstall water pickup tube sea (a) 3Mount suitable screwdriver or drift punch in viseTool must 1) fit in to end of propeller shaft and 2) compress sp ring as shown4Compress spring beyond cross pin hole and insert punch thru cross pin holes to retain spring as shown
Propeller Shaft
1Install sliding clutc (a) so that cross pin hole (b) of clutch alig ns with slot (c) in propeller shaftaSuilable Screwdri ver Blade or PunchPun ChSpring