1990 Johnson Evinrude "ES" 40 thru 55, P/N 507872, Page 180Get this manual
COA2956
Stern Bracket Servicing45, 55
Disassembly
rv t=J screwsRemovebumpers from the mount mount retaining 1Remove the upper the screws, upperand ground
lead from the bracket
2Using OMC Retaining Ring Pliers No4, PIN 307429, remove the retaining ring from the pivot shaft3 The pivot shaft is splined to the lower mount bracket
L!:J EJ and secured with locking adhesiveHeat the pivot shaft
splined end with torchAllow the heated area to cool, then remove the lower mount bracket and the lower thrust washer from the pivot shaft