1978 Evinrude Outboards 9.9/15HP Service Manual, Page 69Get this manual
bPosition crankcase on cylinder block, and install screws finger tight using OMC Adhesive "M" on the two center main screwsReplace crankcase taper pin, driving in carefully with hammerRap bottom end of crankshaft with mallet to seat ball bearings and center crank throws in crankcasecCheck for binding between the crankshaft and the bearings or connecting rods by rotating the crankshaft with the flywheeldTighten the center crankcase screws to torque specified in Section 2See Figure 5-42Tighten remaining smaller crankcase screws to speCified torque in Section 2eInstall upper main bearing seal using seal installer (Special Tool #319872)See Figure 5-42 gInstall cylinder head, using new gasket coated lightly with OMC Gasket Sealing CompoundDo not use sealer if so stated on the gasketTighten cylinder head bolts to specified torque, following the sequence shown in Figure 5- 44