1987 Johnson/Evinrude CU Outboards 35A thru 55 Service Manual, Page 226Get 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 1116 inopen-end wrench, back the pinion nut off the driveshaftPad the handle of the wrench to prevent damage to the gearcase The driveshaft to pinion taper is locking taperIf necessary, use OMC Puller PIN 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) CD, thrust washerand thrust bearing from the gearcaseReach inside the gearcase and remove the pinionIt may be necessary to pull up on the shift rod to gain enough clearance to remove the pinion 1171 10Push down on the shift rod to engage REVERSE gear