Mercury Mariner 4, 5 102CC Sail 1990 Outboard Service Shop Manual, Page 102Get this manual
Forward Gear 1Insla ll shim(s) (aremoved during disassembly on fo rward gear
Pinion Gear and Drive Shaft
NOTE: Rotate drive shalt when instal ling to align
spli nes wit pinion gear1Install drive shaft (a) into pinion gear (b) as sh own