1996 Johnson Evinrude "ED" 40 thru 55 2-Cylinder Service Manual, P/N 507124, Page 203Get 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 retaining the impeller housing to the gearcase2Slide the water pump assembly off the driveshaftRemove the impeller drive camimpeller a-ringimpeller plateand gasket Discard the gasketDisassembly Assembly 1Remove all the parts from the housingInspectthe housing for cracks or melting
rn 2Apply dropthe OMC AdhesiveDo sealant in the seal ring of four ribs not allow any of the groove at each of
adhesive to get into the air bleed groove in the impeller housingIfthis groove is blocked by adhesive, the pump may lose its prime and not pump waterCD
3Place the a-ring in the groove in the impeller housing