Mercury Mariner Outboard 225 3 Litre Service Manual 1994, Page 230Get this manual
5 Using suitable mandrel and the universal puller plate to support the bearingpress the bearing from the reverse gear as shown
Note: Inspection of the bearing surfaces on the propeller shaft where the needles ofthe bearing carrier needle bearing rolisgives an indication of the condition of the needle bearing inside the bearing carrierReplace needle bearing in the bearing carrier if the prop shaft is pitted, grooved, scored, worn unevenly, discolored from overheating, or has embedded particlesPerform the following step aor bas necessaryaIf Replacing the Needle Bearing and Seals: Remove the needle bearing and seals with the tools as shown