1994 Johnson/Evinrude Outboards 40 thru 55 Service Manual, Page 162Get this manual
rol1nJ 7Using OMC Cone, PIN 318600, and Driver, PIN 318599, install new wrist pin retaining rings in each wrist pin holeGap of the retaining ring faces down, away from notch in piston
8Repeat Steps thru for each piston10 9Install piston rings on each pistonSpread each ring with ring expander just enough to slip it over the head of the piston and down into place10Coat pistons, rings, cylinders, and OMC Ring Compressor, PIN 326592 (PIN 330222 for oversize), with outboard lubricantf111 11Center connecting rod in position and locate piston rings on their dowel pinsWith the word on dome of piston facing flywheel end of crankshaft, slide piton into its respective cylinder bore while guiding the connecting"rod through the blockThe piston rings must be correctly located on their dowel pins or permanent powerhead damage will occur121 12Lightly coat both sides of new cylinder head gasket with OMC Gasket Sealing CompoundInstall gasket with tab facing port side of cylinder block1131 13Install cylinder headFollowing sequence shown, torque all screws in stages to 216-240 inIbs(25-27 Nm).I