Mercury Mariner 200, 225 Optimax Outboards Service Manual, 90-855348, Page 460Get this manual
6Operate the shift shaft to ensure that it has been properly installedThe sliding clutch should move forward when the shift shaft is turned clockwise, and should move aft when the shift shaft is turned counterclockwise7Make sure that the a-rings are present and positioned correctlyInstall the screws that secure the shift shaft bushing and torque them to 60 lbin(7.0 Nm) Drive Shaft and Pinion Gear
Final Installation (Ratcheting and Non-Ratcheting)
1Place the shim(s) into the drive shaft housing bore at the location shown
70494Screws (2)Shift Shaft Bushing
8Slide the rubber sleeve at top end of shift shaft down so that it just touches the oil seal in the bushing
NOTE: For ease of installation, glue the washer to the pinion gear, using 3M Adhesive (92-25234), or Quicksilver Bellows Adhesive (92-86166), or equivalent2Apply Loctite Type 271 (92-809820) to the threads of the NEW pinion gear NUT and assemble the pinion gear nut into the MR slot of the pinion nut adaptor70492