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Fig. 39: View Of Cylinder Head & Bolts 8. Install the cylinder head (218) onto the locating pins and the gasket. 9. Install the NEW cylinder head bolts (220, 221).
2008 Chevrolet Silverado 1500 2008 ENGINE Engine Mechanical - 4.8L, 5.3L, 6.0L, 6.2L, or 7.0L - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado
Fig. 40: Cylinder Head Bolt Tightening Sequence 10. Tighten the cylinder head bolts. Tighten: 1. Tighten the M11 cylinder head bolts (1-10) a first pass in sequence to 30 N.m (22 lb ft). 2. Tighten the M11 cylinder head bolts (1-10) a second pass in sequence to 90 degrees using the J 45059 . 3. Tighten the M11 cylinder head bolts (1-10) a final pass in sequence to 70 degrees using the J 45059 . 4. Tighten the M8 cylinder head bolts (11-15) to 30 N.m (22 lb ft). Begin with the center bolt (11) and alternating side-to-side, work outward tightening all of the bolts. VALVE ROCKER ARM AND PUSH ROD INSTALLATION (RPO LY2/LH6/LMG/LY5/LC9) NOTE: Refer to Fastener Notice .
2008 Chevrolet Silverado 1500 2008 ENGINE Engine Mechanical - 4.8L, 5.3L, 6.0L, 6.2L, or 7.0L - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado
Fig. 41: View Of Valve Rocker Arm Pivot Support 1. Lubricate the valve rocker arms and pushrods with clean engine oil. 2. Lubricate the flange of the valve rocker arm bolts with clean engine oil. 3. Install the valve rocker arm pivot support. IMPORTANT: When using the valve train components again, always Valve lash is net build. No valve adjustment is required.
2008 Chevrolet Silverado 1500 2008 ENGINE Engine Mechanical - 4.8L, 5.3L, 6.0L, 6.2L, or 7.0L - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado
Fig. 42: View Of Pushrods 4. Install the pushrods. IMPORTANT: Ensure the pushrods seat properly to the valve lifter sockets.
2008 Chevrolet Silverado 1500 2008 ENGINE Engine Mechanical - 4.8L, 5.3L, 6.0L, 6.2L, or 7.0L - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado
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