Note. When disassembling components in the cylinder head, they must be laid out carefully or marked so that they can be reassembled in their exact position.
Unscrew the retaining screws and pull out the valve covers.
Unscrew the retaining screws and pull out the timing system support cap.
Remove the opening rocker arm pins using service tool 88713.0120.
Pull out the rocker arms. Keep the springs and do not damage or lose the shims.