1989 Johnson Evinrude "CE" Colt/Junior thru 8 Service Manual, P/N 507753, Page 226Get this manual
COA3329
Remove the two gearcase head attaching screws and then using soft mallet, alternately tap each of the ears of the gearcase head either clockwise or counterclockwise until the gearcase head is in the position shownThen tap the ears from behind alternately to disengage the gearcase head O-ringOnce the gearcase head O-ring is disengaged from the gearcase, then the propeller shaft components and gearcase head can be removed as unit
[}]] 9The forward gear thrust washer and thrust bearing may have stayed in the gearcase next to the forward gearcase bearing If they have, remove them at this time
COA3335