Mercury Mariner 200, 225 Optimax Outboards Service Manual, 90-855348, Page 421Get this manual
4Press the needle bearing into the bearing carrier until the driver bottoms out on the bearing carrierEnsure that the numbered side of the needle bearing faces the seal end (aft end) of the carrier 7Press on the oil seal driver until the driver bottoms onto the aft face of the bearing carrier
50788Oil SealOil Seal Driver (91-31108) (long end)Bearing Carrier
50788Needle BearingBearing CarrierNeedle Bearing Driver (91-15755)
8Apply thin film of Loctite 271 (92-809820) to the outer diameter of the second seal9Assemble the second seal (with the lips seal facing the driver shoulder) onto the short end of the driver