1999 "EE" Evinrude 5 thru 15 4-Stroke Service Manual, P/N 787022, Page 193Get this manual
10Remove bushing from water tubeRemove three screws retaining exhaustwater tube coverRemove cover and discard gasket11Remove flange screw retaining water tube
12Remove tube and grommetInspect components and sump passages13Inspect hole in water tube for obstruction
14Remove three screws retaining oil pump and filter assembly15Remove and discard O-rings from housingRemove two screws and lock washers securing housing together16Remove and discard O-rings from pumpMark gerotor assembly