Mercury Mariner 25HP 4-Stroke Outboard Service Manual 1997, Page 264Get this manual

Mercury Mariner 25HP 4-Stroke Outboard Service Manual 1997, Page 264

9Replace bearing and race as setUse suitable mandrel to press bearing onto gearPRESS ONLY ON INNER RACE when installing bearing Shift Shaft
1Inspect shift cam for wear or gallingReplace cam if necessary2If cam is worn, inspect cam follower in end of propeller shaft for wear
REMOVAL
aMandrel (1516 insocket)Universal Puller Plate (91-37241)Cam FollowerShift Cam