1997 Johnson Evinrude "EU" 40 thru 55 2-Cylinder Service Manual, P/N 507265, 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 CWIC Gasket Sealing Compound to threads of jet housing retaining screws and rear exhaust housing screwInstall two 516-16 112 inscrews in forward holes and two 516-16 inscrews in rear holes Install adapter to jet housing screwTighten all screws to 10-12 ftIbs(14-16 Nml3Install key, bushing, shims, tab-washer, and nut on driveshaftBe sure shims are placed in original positionRefer to Impeller Clearance Adjustment
rn 4Whentoproper ftIbs(22-24 Nmlis achieved, tighten clearance adjustment impeller nut 16-18 rnto5.secure athe assemblywasher, bend tabs around driveshaft Using new tab-lock nut