1999 "EE" Evinrude 70HP 4-Stroke Service Manual, P/N 787023, Page 125Get this manual
Cylinder Block Disassembly
1Remove cylinder head prior to disassembly
2Remove crankshaft pulley nut CD using OMC Crankshaft Holder, PI 345827Place tool on crankshaft taper aligned with keyway to hold crankshaft in place3Remove washer lower guide
, upper guidepulleykeyand
4Remove screws (j) retaining thermostat housinggasketupper stopthermostat (1), and lower stop (g)DRC7667
5Remove ten main bearing screws G:ID and ten crankcaseto-cylinder block screws (H)Separate crankcase G:ID with bearings G]) from cylinder block Gl)6Remove screws (lID retaining water jacket covers G:ID to the crankcaseRemove covers and gaskets QjDiscard gaskets7Mark cylinder number on connecting rod caps prior to removal8Remove nuts bearings retaining rod caps and remove caps with
[JJ INotel
INote 9Wrap rod bolts in tape to avoid damage [[J
10Push pistons Remove thrust bearings housing assembly and rodsdown from crankshaft Remove crankshaft, seal and seal