1997+ Mercury 35/40HP 2 Cylinder Outboards Service Manual PN 90-826148R2, Page 197Get this manual
IMPORTANT: Snap ring groove faces up towards flywheel5Attach main be aring races with holes towards lower ge ar end of crankshaftS ecure ach main be aring race with retaining ringLubricate top main be aring with 2-cycle engine oil and install to crankshaft as shown Installing Rods to Crankshaft
1O il rod and be aring cage with 2-cycle oil2Pull rod into place and install be aring cages as shownaMain aring aceetaining Ring (Groove Faces Flywheel)Top Main aring (O ne Piece)
6Position cylinder block and piston rods as shownInsert locating pins (a)
52893aring age
NOTE: Cle an rod boltrod cap bolt holes of oil and debris before re assemblyIMPORTANT: The rod cap and rod must be aligned and held together when threading oiled boltCheck that mating surfaces are tight together after bolt enters threads in piston rod3Place rod cap over be aring cagesWhile holding cap to rod, insert slightly oiled bolts and lightly tighten while observing cap to rod alignment52885