Mercury Mariner V-250 V-275 Outboard Service Shop Manual 1990, Page 249Get this manual
Reverse Gear and Bearing Adaptor REASSEMBLY
To install reverse gear bearing cup assembly into gear
case, insert reverse gear with DRIVER TOOL
(9 1- 18605) into bearing cup assembly00 NOT installlhrust bearing or thrust washer onto reverse gear assembly at this timeApplya light coal of Quicksilver Super Duty Gear Lubricant (92-75603-1) onto outside diameter of bearing cupPlace entire assembly into gear case
1With reverse gear teeth facing down, use mandrel (91 -816244) to press propeller shaft needle bearing (NUMBERSILETIERS UP) into reverse gear until
mandrel bottoms on reverse gear
a Reverse Gear
bMandreI{91-Bl6244)Needle Bearing
If reverse gear rolier bearing was removed fro bearing adaptor, press bearing (NUMBERLETTER SIDE