1987 Johnson/Evinrude CU Outboards 35A thru 55 Service Manual, Page 167Get this manual
112114Loosen and remove the eight crankcase flange screws113115Loosen and remove the six main bearing screws114116Using rawhide or rubber mallet, tap upward on the crankshaft to separate the crankcase and cylinder block17Lift straight up and remove crankcase18Using an indelible marker, identify each connecting rod cap by cylinderCylinder number one is closest to the flywheel
116119Using OMC Torquing Socket PIN 331638, loosen in
stages and ,remove the connecting rod screwsSet the rod caps, screws, and bearings aside1Note Identify all internal components so that if reused they can be installed in their original positions