Mercury Mariner V-250 V-275 Outboard Service Shop Manual 1990, Page 132Get this manual
6Secure centermain bearing races together with retaining rings Make sure retaining ring bridges the separating lines of the bearing race b0-rin9
8Install oil seal into upper bearing carrier as follows: DESIGN upper bearing carrieraApply thin bead of LOCTITE 271 to outer diameter of oil sealbUsing suitable mandrel, press oil seal into upper bearing carrier (LIP FACING DOWN) until flush with INNER ledge of bearing carrierRemove any excess LOCTITEcLubri cate oil seal lip with NEEDLE BEARING ASSEMBLY LUBRICANT (92-42649A1) 24288