Mercury Mariner V-250 V-275 Outboard Service Shop Manual 1990, Page 235Get this manual
5Use long Puller Jaws (91-46046Al) and Puller Bolt (91-85716)to remove bearing carrier(Use propeller thrust hub to maintain outward pressure on puller jaws) NOTE:When bearing carrier is removed from gear housing, the bearing carrier alignment key will come out with it IMPORTANT: Prior to removal of shift shaft from gear housing, recheck that gear housing is in neutral position (propeller shaft will rotate freely in both directions without ratcheting noise)7With gear housing in neutral position, pull shift shaft out of gear housingIf necessary, use pliers (wrap strip of soft metal around splines before clamping pliers) to pull shift shaft out of gear housingDO NOT tum shaft (clockwise OR counterclockwise) while pulling shaft out(For further information, see "Shift Shaft Cleaning! Inspection and Disassembly")