1974 Johnson 135 HP Outboard Motors Service manual, Page 67Get this manual
REASSEMBLY OF POWER HEAD TO EXHAUST HOUSING
Hold hmer exhaust housing in position with four screwsInstall cover center screw and tighten to torque specified in Section 2See Figure 5-43BInstall outer exhaust cover and tighten screws to torque specified in Section 2aMake ure gasket surfaces of power head and power head adapter are cleanPlace new gasket in position on the power head adapterInstall new "0" ring on driveshaft and lightly lubricate spline with OMC SeaLube Anti-Corrosion Lubeb, Pl ace power head on exhaust housing adapter, using care to avoid
damage splined ends of crankshaft and driveshaftDO NOT in any