Mercury Mariner 200, 225 Optimax Outboards Service Manual, 90-855348, Page 354Get this manual
BEARING CARRIER ASSEMBLY -Inspection 1Clean the assembly with suitable solvent and dry the parts thoroughly using compressed airNOTE: If any of the following items are found to be defective complete the appropriate instruction(s) in "Bearing Carrier Assembly", 'Component Disassembly and Inspection' section found on page 6A-202Inspect the bearing carrier for signs of excessive corrosion especially in the area where the bearing carrier touches the gear housingIf excessive corrosion is evident replace the carrier 5Inspect the clutch jaws of the gear for damageSurfaces must not be chipped or rounded offReplace the gear if any are foundc
aBearing CarrierMating Surfaces 50314
aReverse Gear TeethThrust Washer SurfaceClutch Jaws
6Inspect the reverse gear bearing for excessive movement or roughness by rotating gearReplace the bearing if either of these conditions exists7Inspect the bearing carrier retainer for cracks andor broken or corroded threadsReplace carrier if any are found8Remove the O-ring from the bearing carrier assembly