1978 Johnson 175, 200, 235 HP Outboard Service Manual, Page 95Get this manual
dIf removed, install cylinder head covers, using new gaskets and OMC Gasket Sealing CompoundTighten screws to specified torqueeInstall water bypass and exhaust covers (175200 hpjInstall intake bypass covers in their respective positions using new gaskets and OMC Gasket Sealing CompoundIf removed, install thermostat components as described in Thermostat SerVice, this section63449
Figure 5-78Installing Power Head (175200 hp Shown) cEngage shift rod connector with bellcrankTighten screw and nutsConnect ground leadAttach front rubber mount screwsSee Figure 5-78AInstall cylinder heads, using new gaskets coated lightly with OMC Gasket Sealing Compound (part #317201) unless gaskets are marked DO NOT USE SEALERTighten cylinder head bolts to torque specified in Section 2, following the sequence shownSee Figure 5-79
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Re-torque cylinder head and exhaust cover screws after motor test has been completed and motor has cooled comfortable to touch