2008 Evinrude E-TEC 55MFE Technical Manual, Page 207Get this manual
POWERHEAD POWERHEAD ASSEMBLY When the crankcase is seated, install and firmly seat the crankcase taper pinApply Nut Lock to crankcase flange screwsInstall crankcase flange screws and tighten to torque of 60 to 84 inlbs(7 to 9.5 Nm)
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Tighten main bearing nuts in stages to final torque of: 26 to 30 ftlbs(35 to 41 Nm)Start in the center and work outward in spiral pattern
Test that the crankshaft spins freely without binding