1995 Mariner Mercury Outboards Service Manual 50HP 4-Stroke, Page 235Get this manual
Forward Gear 1Apply Super Duty Gear Lubricant to .0of race Install forward gear bearing race into housing using Mandrel 91-36571 and propeller shaftUse lead hammer on prop shaft to prevent damage to threadsBearing carrier should be installed to keep prop shaft centered while seating raceApply Loctite 271 (92-8230891) to pinion nut threadsInstall pinion nut, with rounded corners FACING pinion gear, onto drive shaftUsing Drive Shaft Holding Tool (91-825196) to hold drive shaft, torque pinion nut to 50 lbft(67.8 Nm)
aRaceMandrel (91-36571)
NOTE: Remove drain plugmagnet assembly from gear case (if installed) to prevent possible breakage of magnet if struck by forward gear2Install forward gear and bearing assembly into forward gear race52864 Pinion Nut [Torque to 50 lbft(67.8 Nm)] Pinion Gear Pinion Bearing Drive Shaft Holding Tool