1978 Johnson 175, 200, 235 HP Outboard Service Manual, Page 134Get this manual
bPress in new driveshaft seal lip facing downward with Special Installer Tool #318673cInstall new grommet with OMC type "M" cement onO.DdInstall cover and two screwseInstall upper grommet SHIFT ROD CONNECTOR ADJUSTMENT aThread shift rod connector onto shift rod until seated, then back off two or more turns until offset faces forwardbCheck shift rod connector hole to surface of gearcase using OMC Special Tool #388706 with gearshift in neutralStandard length gearcase should be 21.600" 0.036" (548.64 0.91 mm)Long shaft model should be 26.600 0.036" (675.64 0.91 mm)See Figure 6-108
fApply OMC adhesive "M" to bottom edge of impeller plate and install plateInsert impeller drive key in driveshaftInstall impeller over driveshaft with either side up if installing new impellerSee Figures 6-47 and 6-107gInstall pump housing using seal protective sleeve (Special Tool #318674)Oil impeller blades and rotate driveshaft clockwise while sliding housing over impellerSee Figure 6-107Secure pump housing with screws dipped in OMC Gasket Sealing Compound and tighten to torque speCified in Section