1972 Johnson 2HP Outboard Motor Service Manual, Page 34Get this manual
Remove exhaust cover and gasket screwsSee Figures 5-55-4
removing the cover plate
Straighten out the 10ck plate tabs which bent against the connecting rod screwsNOTE: If tabs broken off it is very important that they found so that in reassembly they do not remain in the engineRemove the connecting rod screwsSee Figure 5-6dRemove connecting rod needles or connecting rod to and 30 needle bearingsAvoid 10ss of dowels
Remove four screws and lower main bearing and seal housingSee Figure 5-7The lower main bearing and seal are not serviced separatelyIf bearing seal are damaged, entire assembly must replacedFigure 5-5Exhaust Cover Removed fRemove crankshaft through of crankcase
gReinstall rod rodSee Figure 5-16Remove piston and rod through front of crankcasehRemove the rings from the piston prying the ends loose enough to grip them with pliers and then breaking them away from the pistonDO NOT try to save the ringsInstall set of new rings every power head service jobiIf necessary to remove piston from connecting rod, remove wrist pin retaining rings, using needle-nose pliersSee Figure 5-8Drive wrist pin through to free piston from connecting rodSee Figure 5-9