1990 Johnson Evinrude "ES" 60 thru 70 Service Manual, P/N 507873, Page 193Get this manual
19Inspect the pinion bearing for damage without removing itIf bearing is damaged, remove and discard the pinion bearing from the gearcaseIf the bearing is removed for any reason, it must be replaced- Remove the bearing retaining screw from the gearcaseDiscard the O-ring from the screw- In the gearcase, assemble the following components of OMC Pinion Bearing Remover and Installer PI 391257:
PI 326586 PI 391260 PI 326582 CD PI 326580