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specified height and allowable tensions (Refer to 9 - INSTALLATION INSTALLATION - CYLINDER HEAD OFF (1) If removed, install a new valve stem seal (Refer to 9 - ENGINE/CYLINDER HEAD/VALVE STEM (2) Position valve spring and retainer on spring seat. (3) Using Special Tool C-3422-D with 8464 Adapter (Fig. 37), compress the spring only enough to install (4) Slowly release the spring tension. Ensure the retainer locks are seated properly (Fig. 40). INSTALLATION - CYLINDER HEAD ON (1) The intake valve stem seals should be pushed firmly and squarely over the valve guide using the CAUTION: Do not pinch seal between retainer and (2) Follow the same procedure on the remaining 5 cylinders using the firing sequence 1-2-3-4-5-6. Make (3) Remove spark plug adapter tool. (4) Install rocker arms and shaft assembly. (Refer to 9 - ENGINE/CYLINDER HEAD/ROCKER ARMS - (5) Install cylinder head covers. (Refer to 9 - ENGINE/CYLINDER HEAD/CYLINDER HEAD COVER(S) - INSTALLATION) (6) Install spark plugs and connect wires. ROCKER ARMS DESCRIPTION DESCRIPTION - ROCKER ARMS The rocker arms are installed on the rocker arm shaft. The rocker arms and shaft assembly is DESCRIPTION - PUSHRODS The pushrods are made of steel and are a hollow design. The pushrods are positioned between the OPERATION OPERATION - ROCKER ARMS The rocker arm pivots on the rocker shaft. Rocker arms are used to translate up and down motions pro- Fig. 39 TESTING VALVE SPRING 1 - SPECIAL TOOL C-647 Fig. 40 VALVE SPRING INSTALLED 1 - VALVE SPRING RETAINER RS ENGINE 3.3/3.8L 9 - 113 VALVE SPRINGS (Continued) |