1990 Johnson Evinrude "ES" 60 thru 70 Service Manual, P/N 507873, Page 140Get this manual
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1281 17Carefully lift straight up and remove the crankshaft1291 18Slide the upper main bearing assembly off the crankshaftDiscard the O-ringRemove the upper crankshaft seal as necessary1301 19Carefully remove the retaining rings and remove the center main bearings and split sleevesIdentify the components and keep them separateRemove and discard driveshaft O-ring