Chrysler 4 HP Outboard Motor Service Manual OB 2278, Page 32Get this manual
SECTION VIII (Con't 8-2Installing Driveshaft
APlace drive pin in hole in driveshaftBSlide water pump impeller on driveshaft with slot in impeller facing downCInstall driveshaft with impeller and pin in gear housingDPlace water pump plate on water pumpEInstall bevel pinion gear as outlined in Section VIII, paragraph 6-2
FRemove gear shift rod seal from water pump body as shown in figure 18GDrive out spring pin securing shift rod coupling to shift rod and remove couplingWATER PUMP BODY 05-22 WATER LINE SEAL SHIFT CAM 05-16 SHIFT ROD SHIFT ROD SEAL
9-1Removing Water Pump Body
ARemove driveshaft as outlined in Section VIII, paragraph 8-1BRemove stud and lockwasher securing water pump body to gear housingSee figure 17