The first step for replacing the valve Rocker Arm and push rod is to remove the valve Rocker Arm cover. The rack will hold valve Rocker Arm and
Pushrod and pivot support in their original positions. Follow this step by the valve Rocker Arm bolt and then remove the valve Rocker Arm and pivot support and Pushrod. The cleaning and examination process of valve Rocker Arm and Pushrod must be completed. The valve train components need to be reinstalled at their factory locations without any adjustment of valve lash since the net build design requires no alteration. Clean engine oil should be used to lubricate both the valve Rocker Arm and Pushrod as well as the valve Rocker Arm bolt flange. Set the Pushrod in its appropriate position in the valve lifter socket of the valve Rocker Arm pivot support before installing the Pushrod. The Pushrod must correctly sit at the Rocker Arm ends before adjusting the Rocker Arm bolt torque. Fasten the Rocker Arm in place before rotating the
Crankshaft until piston number one reaches top dead center compression position with the key of the Crankshaft sprocket at 1:30. The engine layout features the left bank containing cylinders 1, 3, 5 and 7 while the right bank contains cylinders 2, 4, 6 and 8 during this specific position. Keep the Crankshaft at engine firing position number one to tighten exhaust valve rocker bolts of cylinders 1, 2, 7 and 8 up to 30 nm (22 ft. Lbs.) while intake valve rocker bolts of cylinders 1, 3, 4 and 5 require the same 30 nm (22 ft. Lbs.) torque setting. Perform Crankshaft rotation 360 degrees and proceed to tighten valve Rocker Arm bolts for cylinders 3, 4, 5, 6 exhaust to 30 nm (22 ft. Lbs.) and for cylinders 2, 6, 7, 8 intake to 30 nm (22 ft. Lbs.). The valve Rocker Arm cover should be the last step in the installation process.