Mercury Mariner 200, 225 Optimax Outboards Service Manual, 90-855348, Page 438Get this manual
Pinion Bearing REMOVAL
NOTE: Inspect the bearing surface on the drive shaft where the needles of the lower pinion bearing rollThe condition of the drive shaft at this location give an indication of the condition of the needle bearingReplace lower pinion bearing (needles and race as set) if the drive shaft is pitted, grooved, scored, worn unevenly, discolored from overheating, or has embedded particles
Gear Housing Reassembly