1979 Evinrude 4 HP Outboards Service Repair Manual, PN 5424, Page 69Get this manual

1979 Evinrude 4 HP Outboards Service Repair Manual, PN 5424, Page 69

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WEEDLESS GEARCASE WATER PUMP aRemove0" ring from top of driveshaftbRemove two impeller housing screwsSee Figure 6-13cWhile holding driveshaft down in gearcase, slide impeller housing and impeller off