1997 Johnson Evinrude "EU" 9.9 thru 30 2-Cylinder Service Manual, P/N 507263, Page 226Get this manual
Water Pump Servicing25 Comm 30SPL Disassembly
1Remove gearcase as described in Gearcase Servicing, this section
2Remove the four impeller housing screws with washersSlide the impeller housing and impeller up and off the driveshaftRemove the impeller drive pin
3Pry under the impeller plate to loosen itSlide the plate up and off the driveshaftScrape all gasket material from the plate, gearcase, and impeller housing4Remove and discard the impeller housing seal and water tube grommet5Inspect the impeller, plate, and housing for excessive wearAssembly
1Apply OMC Gasket Sealing Compound to the metal casing of new driveshaft sealInstall the seal using OIIK: Upper Driveshaft Seal Installer, PIN 330655Install the seal into the impeller housing with lip of seal facing away from the toolCoat the lip of the seal with OIIK: Triple-Guard grease2Lightly coat the exterior of the impeller cup with OIIK: Gasket Sealing CompoundInstall impeller housing linerThe liner locks in place in the impeller housing with two square tabs