1997 Johnson/Evinrude EU 25, 35 HP 3-Cylinder outboards Service Manual, Page 192Get this manual
Water Pump Servicing Disassembly
1Remove gearcase assembly as described in Gearcase Servicing, this section
2Remove and discard seal
rn 3Remove the six impeller housing screws
4Pull up on the driveshaft and remove the driveshaft with the water pump assembly from the gearcaseRemove the water pump assembly from the driveshaft5Remove the impeller plate and gasket Discard the gasket
6Scrape all gasket material from the plate and gearcase7Remove the water pump grommet, all a-rings, and the shift rod bushing from the impeller housing8Inspect all components for excessive wearAssembly