1990 Johnson Evinrude "ES" Cross V 88 thru 115, 150 thru 175, P/N 507874, Page 213Get this manual
5Install the water tube grommet up with the inside taper facing
[ZJ Install the impeller housing cover f71 7Apply OMC Adhesive to flat side of the impeller housing grommet (8)Install the grommet, flat side downf8l Lightly coat the liner with oilWith counterclockwise rotation, install the impeller into the liner with slot for impeller cam facing outf8l 9Run thin bead of OMC Adhesive in the seal groove and then install the special shaped O-ring seal CDInstallation
t=J new impeller plate gasket Install the gasket and impeller plate
Apply GMC Gasket Sealing Compound to both sides of a
2Apply GMC Needle Bearing Assembly Grease to flat area of the driveshaftInstall the drive cam The sharp edge Q) of the cam is leading edge during driveshaft rotation 3Slide the water pump assembly down the driveshaftAlign impeller housing with the gearcase Rotate 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 position