Mercury Mariner V-250 V-275 Outboard Service Shop Manual 1990, Page 247Get this manual
3 Install and seat needle bearingPull bearing up into bore until it booms on gear housing shoulderDO NOT use excessive force -
a Inslallalioo Tool (91-16601) Forward Gear Bearing Bearing Adaptor
PROPELLER SHAFT NEEDLE ROLLER BEARING AND OIL SEAL INSTALLATION 1Using mandrel (91-15755), press bearing carrier needle bearing (number side up) into bearing carrier until mandrel shoulder contacts bearing carrier
aMandrel (9192766) Bearing Pilol (91-92790) Plale' (91-29310) Puller Rod' (91-31229) Hold Nut' (1124156) 'From Bearing Removal and Installation Kit (9131229A5)