Mercury Mariner 4 and 5HP 4-Stroke Outboards Service Shop Manual 1999, Page 187Get this manual
GEAR HOUSING
3Pull propeller shaft (a) from bearing carrierRetain cam follower (b) with propeller shaft4Remove O-ring (c)=56396 56397
IMPORTANT: Propeller shaft bearing is damaged during removal00 not remove bearing unless replacement Is necessaryRefer to "Cleaning and Inspection," foll owIng
5Remove propeller shaft bearing (a) using puller assembly (b) with suitable jaws (c) and suitable plate (d)NOTE: Propeller shaft bearing has to be removed (see step 5) before removing propeller shaft oil seal6Remove propeller shaft oil seal (e)using puller assembly (f) with suitable jaws (g) and suitable plate (h)