1988 Johnson Evinrude "CC" 9.9 thru 30 Service Manual, P/N 507660, Page 255Get this manual
f414then install the water tube grommet into the impeller L!:J housing5Lightly coat both sides of new impeller plate lower gasket with OMC Gasket Sealing CompoundPosition gasket on the gearcasef6l6Slide the impeller plate down the drives haft and position itLightly coat both sides of new impeller plate upper gasket with OMC Gasket Sealing CompoundPosition upper gasket on the impeller platef6l Apply OMC Triple-Guard grease to the impeller drive pin and place the pin in the slot of the driveshaft 8 Slide the impeller housing down the drives haft, engage the impeller pin, and orient the housingApply OMC Gasket Sealing Compound to threads of the impeller housing screwsInstall the impeller screws and washersTighten the screws to torque of 60-80 inIbs(7-9 Nm)