You need to remove the right engine strut mount, the thermostat bypass pipe, and remove the PCV valve from the valve rocker arm cover, remove the valve rocker arm cover bolts, remove the valve rocker arm cover, then trim
Valve Cover gasket and sealant away from lower intake manifold gasket at the cylinder head to lower intake manifold joints, remove the valve cover gasket, and clean the sealing surface on the cylinder head with degreaser, lastly clean the valve rocker arm cover.