Chrysler 100, 115 and 140 HP Outboard Motors Service Manual, OB 3439, Page 141Get this manual
6Install center main bearings as follows: AInstall center main bearings on crankshaft with
holes in bearing race between groove of snap ring on race and groove of crankcase seal on crankshaft BSecure race on crankshaft with snap ring being certain not to have gap of snap ring over fracture in main bearing race Figure 45
SNAP RINGS (MUST COVER FRACTURES)
Figure 45Installing Center Main Bearings Figure 43Installing Lower Main Bearing Seal
5Install crankcase seal as followsAApply grease to two (2) crankcase seal grooves in crankshaft so that seal will stay in groove BInstall one crankcase seal in each groove in crankshaftFigure 44 CRANKCASE SEALS (TWO OF THREE SHOWN)