Mercury Mariner 200, 225 Optimax Outboards Service Manual, 90-855348, Page 374Get this manual
3Press the bearing cup into the gear housing using the installation tool as follows: NOTE: Ratcheting type gear cases use bearing cup driver 91-36577Non-ratcheting gear cases use bearing cup driver 91-31106IMPORTANT: Verify that the bearing cup is position as straight as possible to avoid cocking it in the bore while pressing it in Shift Shaft Assembly
INSTALLATION
1Place the shift crank onto the locating pin in the forward section of the gear housingEnsure that the shift crank faces towards the left (port) side of the gear housing
50314 50791Hex-Head ScrewBearing Cup Installation Tool (91-18605A 1)Driver Cup (91-36577) for ratcheting type gear casesDriver Cup (91-31106) for non-ratcheting type gear casesdShimsShift CrankLocating Pin