1988-1992 Mercury Force 5HP Outboards Service Manual, Page 210Get this manual
5 Inspect clutch shift cam for wear
NOTE: Excessive wear on crests may allow motor to slip out of gearInspect propeller bearing shaft cage
NOTE: Bearing cage seal is replaceable, the bronze bearing is notBearing cage must be replaced if excessive wear is found in bearing Check condition of casting for cracks or corrosion Measure bearing inside diameter (A) Measure at several pOintsCheck dimension of thrust face of bearing (8) to face of cageInspect gears for wear Measure bearing inner diameter