1987-1993 Mercury Mariner Outboards 70/75/80/90/100/115HP 3 and 4-cylinder Factory Service Manual, Page 194Get this manual
Oil Sleeve Installation 1Install oil sleeve with tab positioned as shown
IMPORTANT: Oil sleeve must be installed prior to upper drive bearing installationIMPORTANT: Upper drive shaft bearingsleeve can be installed with or without lower drive shaft bearing cup installed3Install bearingsleeve into housing
19173Oil SleeveTab
Upper Drive Shaft Bearing Installation
1Lubricate I.Dof bearing holder and O.Dof bearing with 2-4-C w Teflon2Press bearing into sleevea BearingSleeve Tapered End Mandrel Mandrel Threaded Rod (91-31229) Nut (11-24156)