1998 Johnson Evinrude "EC" 9.9 thru 30 HP 2-Cylinder Outboards Service Manual, Page 224Get this manual
Water Pump Servicing20, 25, 30 Disassembly
1Remove gearcase assembly as described in Gearcase Servicing, this section
OJ 2Remove the six impeller housing screws and washers3Pull up on the driveshaft and remove the driveshaft with the water pump assembly from the gearcaseRemove the water pump assembly from the driveshaft21219
rn 4Remove the impeller plate and gasketDiscard the gasket5Scrape all gasket material from the plate and gearcase6Remove the water pump grommet, all O-rings, and the shift rod bushing from the impeller housing7Inspect all components for excessive wearAssembly