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6. Install the cylinder head cover (Refer to 9 - ENGINE/CYLINDER HEAD/CYLINDER HEAD COVER(S) - INSTALLATION). SPRINGS-VALVE DESCRIPTION The valve springs are made from high strength chrome silicon steel. The springs are common for intake and REMOVAL 1. Remove the cylinder head cover (Refer to 9 - ENGINE/CYLINDER HEAD/CYLINDER HEAD COVER(S) - REMOVAL). 2. Using Special Tool 8516 Rocker Arm Remover (2), remove the rocker arms and the hydraulic lash 3. Remove the spark plug for the cylinder the valve spring and seal are to be removed from. 4. Apply shop air to the cylinder to hold the valves in place when the spring is removed NOTE: All eight valve springs and seals are 5. Using Special Tool 8387 Valve Spring Compressor, compress the valve spring. NOTE: It may be necessary to tap the top of the 6. Remove the two spring retainer lock halves. NOTE: the valve spring is under tension use care when releasing the valve spring compressor. 7. Remove the valve spring compressor. 8. Remove the spring retainer, and the spring. 9. Remove the valve stem seal. 9 - 946 ENGINE - 4.7L SERVICE INFORMATION ND |