1994 Johnson/Evinrude "ER" 9.9 thru 30 outboards Service Manual, Page 164Get this manual
28Oil and place new O-ring on the crankcase headInstall the crankcase headApply OMC Gasket Sealing Compound to threads of crankcase head screwsInstall the screws finger tight29Tighten the six main bearing screws in stages to final torque of 144-168 inIbs(16-19 Nm)Begin with the center screws and work outward in spiral patternTighten the smaller crankcase screws to torque of 60-84 inIbs(7-9 Nm)30Tighten the crankcase head screws to 60-84 inIbs(7-9 Nm) 2531Lightly coat both sides of new cylinder head gasket with OMC Gasket Sealing CompoundInstall the gasket and cylinder headTighten the cylinder head screws in stages to the final torque of 216-240 in Ibs(24-27 Nm), following the sequence shown32Install the thermostat assembly (and temperature switch, if equipped) in the cylinder head2633Install thermostat cover and O-ringTorque screws to 60-84 inIbs(7-9 Nm)r:;:;J 34Apply OMC Gasket Sealing Compound to both sides of