1988 Johnson/Evinrude "CC" 40 thru 55 Models Service Manual, Page 228Get 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, PN 316612, and an 1Y16 in open-end wrench, back the pinion nut off the drives haftPad the handle of the wrench to prevent damage to the gearcase The driveshaft to pinion taper is locking taperIf necessary, use OMC Puller PI 387206 CD and OMC Backing Plate PIN 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 pinion Remove the driveshaft with the driveshaft bearing housingshim(s) (0, thrust washerand thrust bearing from the gearcaseReach inside the gearcase and remove the pinion It may be necessary to pull up on the shift rod to gain enough clearance to remove the pinion 1171