1971 Johnson 40HP outboards Service Manual, Page 44Get this manual
bearing component to assure correct mating when they are reassembledAlso mark the cylinders from which they are removedfRemove carbon seal from lower end of crankshaft by removing retaining ring with Truarc No.2 pliers (Special Tool #303858), then removing other componellts of seal assembly gLift crankshaft from cylinder blockSee Figure 5-10Lift retaining ring out of groove and slide aside to remove crankshaft center main needle bearings for cleaning and inspectionSee Figure 5-11
Figure 5-11Removing Center Bearing
Figure 5-10Removing Crankshaft
hReinstall matched caps on connecting rods and remove pistons and rods from cylindersiRemove the rings from the pistons by prying the ends loose enough to grip them with pliers and then breaking them away from the pistonDO NOT try to save the ringsInstall complete set of new rings on every power head service job