The first step to replace the valve
Rocker Arm and push rod is removing the valve Rocker Arm cover. The rack contains valve rocker arms pushrods and pivot support which will receive their original positioning for reinstallation. Proceed to remove the valve Rocker Arm bolts and then remove the valve Rocker Arm pivot support with the valve rocker arms. After that remove the pushrods. Execute a cleaning operation on all valve rocker arms before conducting their inspection procedure along with the pushrods. The components should always return to their original positions because valve lash has a built-in clearance that needs no adjustment. Clean engine oil should be used to lubricate valve rocker arms and pushrods before applying similar lubrication to valve Rocker Arm bolt flanges. Set the pushrods facing into the valve lifter sockets on the valve Rocker Arm pivot support then place each Pushrod into its proper orientation in the rocker arms before fastening the Rocker Arm bolts. Mount the rocker arms followed by the bolts while rotating the
Crankshaft until the number one piston reaches compression tdc located at the 1:30 Crankshaft sprocket key position. When the number one piston reaches top dead center (TDC) with the sprocket key at the 1:30 position, tighten the first four exhaust valve Rocker Arm bolts to 30 nm along with the next four intake valve Rocker Arm bolts to 30 nm. Using the Crankshaft as a reference point, turn the Crankshaft 360 degrees before torquing the exhaust valve Rocker Arm bolts at 30 nm (22 lb ft) on cylinders 3, 4, 5 and 6 and torquing the intake valve Rocker Arm bolts at 30 nm (22 lb ft) on cylinders 2 and 6, 7 and 8. Seal the engine by putting the valve Rocker Arm cover into place.