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Home >> Hummer >> 2008 >> H2 4D Utility Wagon >> Repair and Diagnosis >> External Pages >> Different car >> Section 152 (Engine Mechanical - 4.8L, 5.3L, 6.0L And 6.2L (1 Of 5)) >> Description and Operation >> Engine Component Description >> Valve Train - RPO LC9/LY5/LMG/L76

Valve Train - RPO LC9/LY5/LMG/L76

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Motion is transmitted from the camshaft through the hydraulic roller valve lifters and tubular pushrods to the roller type rocker arms. The nylon valve lifter guides position and retain the valve lifters. The valve rocker arms for each bank of cylinders are mounted on pedestals or pivot supports. Each rocker arm is retained on the pivot support and cylinder head by a bolt. Valve lash is net build. Cylinders 1, 4, 6, and 7 are active fuel management. For RPO L92, active fuel management hardware present in the engine system is inactive for the 2007 model year. Refer to Cylinder Deactivation (Active Fuel Management) System Description .

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