1978 Johnson 175, 200, 235 HP Outboard Service Manual, Page 79Get this manual
dLoosen but do not remove entirely the four screws holding lower bearing retainer plate to lower crankcase head See Figure 5-24Tap crankshaft with rawhide mallet to break seal between crankcase and cylinderSee Figure 5-27Crankcase may be removed to expose the crankshaft and connecting rods for further disassemblySee Figure28 CRANKSHAFT, CONNECTING RODS, AND PISTONS 111111111 NOTE Pistons, connecting rods, rod bearings and bearing retainers are wearing parts and seat with the operation of the motorBecause of this, it is essential to maintain their original positions at reassemblyMark each connecting rod and cap, piston, and bearing component to assure correct mating when they are removed, and keep the needles of each cylinder togetheraRemove connecting rod caps, then roller bearing assembliesA 5-16 inch 12-point deep socket is required for removing and tightening connecting rod cap screws See Figures 5-29A and 5-29B