1993 Johnson Evinrude "ET" 9.9 thru 30 Service Manual, P/N 508282, Page 230Get this manual
f414then install the water tube grommet into the impeller housmg1sl5Lightly coat both sides of new impeller plate lower gasket with OMC Gasket Sealing CompoundPosition gasket on the gearcase1sl6Slide the impeller plate down the driveshaft and position itLightly coat both sides of new impeller plate upper gasket with OMC Gasket Sealing CompoundPosition upper gasket on the impeller plate1sl7Apply OMC Triple-Guard grease to the impeller drive pin and place the pin in the slot of the driveshaft8Slide the impeller housing down the driveshaft, 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) 32Ceng