1993 Johnson Evinrude "ET" 90 degrees CV Service Manual, P/N 508285, Page 195Get this manual
COA3164-B
Disassembly 1Remove the propeller and mounting hardwareInspect the propeller for spun hub
2Remove the oil level plugthen the drainlfill plugand drain the lube from the gearcase into containerInspect the lube and the magnets on the plugs for metal chipsThe presence of small metal chips can indicate normal wear of the gears, bearings, or shafts within the gearcaseLarge metal chips can indicate extensive internal damageMake note for future reference while inspecting internal components
Inspect the drained lubricant for water or burned odorWater in the lubricant will give it milky appearanceOverheating will give the lubricant black color and burned odor3Remove the propeller shaft housing retainers: V4Remove the four propeller housing screws using 38 inthin-wall socketV6Remove the two screws, washers, and retainers4Remove the propeller shaft bearing housing from the gearcase using the following: