1988 Johnson/Evinrude "CC" 40 thru 55 Models Service Manual, Page 212Get this manual
9Remove the pinion and driveshaft from the gearcase as follows: Pull up on the shift rod to engage FORWARD gear position Using OMC Driveshaft Holding Socket PIN 316612 and an 1V16 in open-end wrench, back the pinion nut off the driveshaft until the nut contacts the clutch dog Pad the handle of the wrench to prevent damage to the gearcase Pull up on the driveshaft until the pinion nut contacts the pinion again The driveshaft to pinion taper is locking taperIf necessary, use OMC Puller PI 387206 CD and OMC Backing Plate PI 325867 Q) to break the lockInstall the tools as shown by clamping them around the driveshaft with the tool's set screw aligned with the impeller drive cam slot and then tighten the set screw into the slotAlternately tighten the two vertical screws against the backing plate inserted between the puller and the gearcase until the driveshaft pops loose from the pinionFinish removing the pinion nut from the driveshaftRemove the driveshaft with the driveshaft seal housingbearing cone CD, and shims(s) from the gearcase Reach inside the gearcase and remove the pinion I15l