1991 Johnson/Evinrude EI Outboards 2.3 thru 8 Service Manual, Page 173Get this manual
31Check for binding between the crankshaft and the bearings or connecting rods by rotating the crankshaft with the flywheelOMC Gasket Sealing Compound to both sides of new cylinder head gasketInstall the cylinder head and torque the screws in stages to 144-168 inIbs(16-18 Nm), following sequence shown 1361 32Apply
1371 33Apply OMC Gasket Sealing Compound to new thermostat cover gasketInstall the thermostat using new seal34Apply OMC Gasket Sealing Compound to new exhaust cover gasket(s)Install the inner and outer exhaust coverTighten the screws to torque of 60-84 inIbs(7-9 Nm), starting with the center screws
35Install the intake manifold and leaf plate assembly using new gasketDo not apply sealer to the gasketTighten the screws to torque of 60-84 inIbs(7-9 Nm)
36Install the water tube and grommet in the inner exhaust tubeLubricate the grommet before installinginner exhaust tube to the powerhead using new gasketIt is not necessary to apply sealer to this gasketInstall and tighten the screws to torque of 60-84 inIbs(7-9 Nm), starting with the center screwsInstallation