2004 SR Johnson 2 Stroke 9.9, 15, 25, 30 HP Outboards Service Manual, Page 267Get this manual
GEARCASE WATER PUMP
Inspection
Check impeller for overheating, hub separation and visible signs of wear or damageCheck impeller cup and plate for scoring, distortion, and impeller material transferInspect housing for cracks or melting
ingCoat the inside surface of grommet with Triple-Guard grease
Assembly
9.915 MODELS Apply Gasket Sealing Compound to the metal casing of new driveshaft sealInstall the seal in the impeller housing with lip of seal facing into the housing1
1Grommet
Lightly coat the exterior of the impeller cup with Gasket Sealing CompoundPosition the impeller cup in the impeller housing as shown