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3. Install NEW M12 cylinder head bolts. 4. Reuse the M8 cylinder head bolts. 5. Tighten the cylinder head bolts in the following steps using the sequence shown: Tighten: 1. Tighten the M12 bolts a first pass to 50 N.m (37 lb ft). 2. Tighten the M12 bolts a second pass to 80 N.m (59 lb ft) 3. Tighten the M12 bolts a third pass to 60 degrees, using J 45059 . 4. Tighten the M12 bolts a final pass to 60 degrees, using J 45059 . 5. Tighten the M8 bolts to 25 N.m (18 lb ft). 6. Position the ground straps to the rear of the cylinder head, and install the bolt. Tighten: Tighten the bolt to 34 N.m (25 lb ft). 7. Install the glow plugs. Refer to Glow Plug Replacement - Bank 2 . 8. Install the valve rocker arm shaft, pushrods, and valve bridges. Refer to Valve Rocker Arm, Shaft, and Push Rod Replacement. 9. Install the exhaust manifold. Refer to Exhaust Manifold Replacement - Left Side (6.6L) . 10. Install the intake manifold. Refer to Intake Manifold Replacement - Left Side. 11. Install the thermostat housing crossover. Refer to Thermostat Housing Crossover Replacement (LMM) . 12. Road test the vehicle for normal operation. 13. Inspect for coolant, oil, or exhaust leaks. CYLINDER HEAD REPLACEMENT - RIGHT SIDE Tools Required J 45059 Angle Meter Removal Procedure damage. NOTE: Refer to Fastener Notice .
2008 Chevrolet Silverado 1500 2008 ENGINE Engine Mechanical - 6.6L - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado
Fig. 203: Cylinder Head Bolt Removal Sequence 1. Remove the thermostat housing crossover. Refer to Thermostat Housing Crossover Replacement (LMM) . 2. Remove the intake manifold. Refer to Intake Manifold Replacement - Right Side. 3. Remove the exhaust manifold. Refer to Exhaust Manifold Replacement - Right Side (6.6L) . 4. Remove the valve rocker arm shaft, pushrods, and valve bridges. Refer to Valve Rocker Arm, Shaft, and Push Rod Replacement. 5. Remove the glow plugs. Refer to Glow Plug Replacement - Bank 1 . 6. Remove the cylinder head bolts in the sequence shown. 7. Discard the large M12 bolts.
2008 Chevrolet Silverado 1500 2008 ENGINE Engine Mechanical - 6.6L - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado
Fig. 204: View Of Cylinder Head & Gasket (Right) 8. Remove the cylinder head. 9. Remove and discard the cylinder head gasket. 10. Clean the sealing surface of the engine block and the cylinder head. NOTE: Clean all dirt, debris, and coolant from the engine block
2008 Chevrolet Silverado 1500 2008 ENGINE Engine Mechanical - 6.6L - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado
11. Clean the cylinder head bolt holes in the engine block. 12. For service to the cylinder head refer to the following: Cylinder Head Disassemble Cylinder Head Cleaning and Inspection Cylinder Head Assemble Installation Procedure Fig. 205: View Of Cylinder Head & Gasket (Right)
2008 Chevrolet Silverado 1500 2008 ENGINE Engine Mechanical - 6.6L - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado
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