1988 Johnson/Evinrude "CC" 40 thru 55 Models Service Manual, Page 168Get this manual
18126 Remove the pistons from the cylinder blockDo not allow the connecting rod to touch the inside of the piston or the cylinder wall27Loosen the thirteen screws that retain the exhaust cover Remove the cover and discard the gasket G9l 28G9l29
Remove the lower crankshaft seal Discard the seal and O-ring
using drift punch
from the bearing
Remove the upper crankshaft seal assemblyDiscard the seal and O-ringinspection
center main bearing and split sleeves