1998 Johnson Evinrude "EC" 2 thru 8 Service Manual, P/N 520202, Page 220Get this manual
Installation
1To avoid accidental starting of engine while servicing, twist and remove spark plug leads
2Place the shift lever into FORWARD gear
OJ 3Lubricate the driveshaft splines with OMC Moly LubeDo
not coat the top surface of the driveshaft as lubricant here may prevent seating of the driveshaft in the crankshaft
4Lightly apply OMC Triple-Guard grease to lower outside diameter of the water tubeSlide the gearcase into position on the exhaust housing being careful to guide the water tube into the water pump grommetRotate the flywheel clockwise to align crankshaft splines with driveshaft
5Apply OMC Nut Lock to threads of the gearcase and extension screwsInstall the gearcase retaining screws Tighten the front screw to torque of 120-144 in Ibs(14-16 Nm) and the two rear screws to torque of 60-84 inIbs(7-9 Nm)When installing gearcase to gearcase extension, do not tighten the retaining screws until the gearcase and the extension have been placed in proper position with the exhaust housing and powerhead assembly