1998 Mercury 9.9/15HP 4-stroke outboards factory service manual, Page 318Get this manual
BIG FOOT
9Remove nut from propeller shaft, then remove bearing carrier, propeller shaft and mandrel from propeller shaft cavity10Apply light coat of oil on tapered bearing race11Place forward gear on press with gear teeth down12Apply light coat of oil to I.Dof forward gear tapered bearing13Position forward gear tapered bearing over gear14Press on inner race of bearing until bearing is firmly seated against forward gear15Apply light coat of Gear Lube to bore in center of forward gear16Using suitable mandrel, press forward gear bushing into forward gear until bushing is flush with the back of gear