1991 Johnson/Evinrude EI 60 thru 70 outboards Service Manual, Page 201Get this manual
Installation r:;' 1Apply OMC Gasket Sealing Compound to both sides of new impeller plate gasket Install the gasket and impeller plate 1nl 2Apply OMC Needle Bearing Assembly Grease to flat area of the driveshaftInstall the drive camThe sharp edge of the cam is the leading edge during driveshaft rotation 3Slide the water pump assembly down the driveshaftAlign impeller housing with the gearcaseRotate the driveshaft to engage the impeller cam with the impeller, and slide water pump assembly down over impellerBe sure impeller cam does not fall out of positionVerify that the impeller engages the impeller cam properlySerious powerhead damage will result if impeller cam is displaced4Apply OMC Gasket Sealing Compound to threads of the four impeller screwsInstall the screws and tighten to torque of 60-84 inIbs(7-9 Nm)