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18. Remove the cylinder head access plug (1). 19. Remove the right side secondary chain guide (Refer to 9 - ENGINE/VALVE TIMING/TIMING 20. Remove the retaining bolt and the camshaft drive gear. CAUTION: Do not allow the engine to rotate. CAUTION: Do not overlook the four smaller bolts CAUTION: Do not hold or pry on the camshaft tar- NOTE: The cylinder head is attached to the cylin- 21. Remove the cylinder head retaining bolts using the sequence provided. 22. Remove the cylinder head and gasket. Discard the gasket. CAUTION: Do not lay the cylinder head on its gasket sealing surface, do to the design of the cylinder head CLEANING To ensure engine gasket sealing, proper surface preparation must be performed, especially with the use of alumi- INSPECTION 1. Inspect the cylinder head for out-of-flatness, using a straightedge and a feeler gauge. If tolerances exceed 0.0508 mm (0.002 in.) replace the cylinder head. 2. Inspect the valve seats for damage. Service the valve seats as necessary. 3. Inspect the valve guides for wear, cracks or looseness. If either condition exist, replace the cylinder head. 9 - 1348 ENGINE - 4.7L SERVICE INFORMATION WK |