Honda 12310-R40-A00 Cylinder Head Cover

To remove the components, first disconnect the cable from the negative battery terminal. For Civic models, remove the cowl cover. Next, take out the two engine cover screws and pull the cover up and off the ball stud. Remove the ignition coils, and for 2015 and later CR-V models, disconnect the wiring to the alternator, then release the harness retainers and move the harness aside. On CR-V models, remove the dipstick, disconnect the valve cover breather hose and PCV hose. For 2015 and later CR-V models, remove the high-pressure fuel pump cover. Then, remove the valve cover bolts or screws and lift the valve cover off, tapping gently with a soft-face hammer if necessary to break the gasket seal. For installation, clean the gasket surfaces on the intake manifold, cylinder head, and valve cover using a shop rag and brake system cleaner to eliminate all residue and gasket material. Insert a new valve cover gasket into the grooved recess in the valve cover, ensuring it is properly positioned. Install new seals on the spark plug tubes, apply a slight amount of RTV sealant to the timing chain cover grooves and the high-pressure fuel pump base mating areas, and tighten the valve cover nuts or bolts in the correct sequence to the specified torque. The remainder of the installation follows the reverse order of removal, and finally, reconnect the battery.