1988 Johnson/Evinrude "CC" 40 thru 55 Models Service Manual, Page 230Get this manual
16Inspect the pinion bearing for damage without removing itIf the bearing is removed for any reason, it must be replaced Remove the bearing retaining screw from the gearcase Discard the O-ring from the screw Assemble the following components of OMC Pinion Bearing Remover and Installer, PI 391257, in the gearcase PI 326586 Flange Nut PI 391260 Plate PI 326582 Rod CD PI 326580 Remover