1996 Johnson/Evinrude Outboards 50 thru 70 3-Cylinder Service Manual, Page 209Get this manual
Water Pump Servicing If the gearcase has been in service for any length of time, it is good policy to install water pump repair kitTo install the repair kit, proceed as follows:
Removal
1Remove the four screws to the gearcase
retaining the impeller housing
rn impeller the water pumpimpeller a-ringthe driveshaftplate2Slide assembly off Remove drive cam' impeller the
and impeller plate gasket Discard the gasketDisassembly Assembly