1970 Johnson 1.5 HP Outboard Motor Service Manual, Page 34Get this manual
5-4 Remove exhaust cover and gasket screwsSee Figures 5-55-4removing the cover p1ate
Straighten out the 10ck p1ate tabs which bent against the connecting rod screwsNOTE: lf 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 need1es connecting rod to and 30 needle bearingsAvoid 10ss of dowe1s
Remove four screws and 10wer main bearing and seal housingSee Figure 5-7The 10wer main bearing and sea1 not serviced separate1yIf bearing sea1 damaged, entire assembly must rep1acedFigure 5-5Exhaust Cover Removed fRemove crankshaft through bottom of crankcasegReinstall rod rodSee Figure 5-16Remove piston and rod through front of crankcasehRemove the rings from the piston prying the ends 100se 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 pin retaining rings, using needle-nose plierswrist pin through to free piston from rod, remove wrist See Figure 5-8Drive rodSee Figure 5-9