1998 Johnson Evinrude "EC" 40 thru 55 2-Cylinder Service Manual, P/N 520206, Page 249Get this manual
Installation 1Slide jet housing into place, making sure driveshaft engages crankshaft, water tube enters water pump, and lower inner exhaust housing does not slip out of position
2Apply OMC Gasket Sealing Compound to threads of jet housing retaining screws and rear exhaust housing screwInstall two 516-16 V2 inscrews in forward holes and two 5 16-16 inscrews in rear holes Install adapter to jet housing screwTighten all screws to 10-12 ftIbs(14-16 Nm)
3Install key, bushing, shims, tab-washer, and nut on driveshaftBe sure shims are placed in original positionRefer to Impeller Clearance Adjustment
4When proper clearance adjustment is achieved, tighten impeller nut to 16-18 ftIbs(22-24 Nm)5Using new tab-lock washer, bend tabs around driveshaft nut to secure the assemblyL-;;5;.a_ _=:-:"J