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Fig. 27: Compressing Valve Spring Using J 8062 6. Use the J 8062 to compress the valve spring. 7. Install the valve keys. 8. Remove the J 8062 from the cylinder head.
2008 Chevrolet Silverado 1500 2008 ENGINE Engine Mechanical - 6.6L - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado
Fig. 28: Measuring Valve Spring Installed Height 9. Measure the valve installed height using a ruler. Measure from the base of the valve spring to the top of the valve. Refer to Engine Mechanical Specifications . 10. Install the remaining valves, springs, and other components. VALVE LIFTERS CLEANING AND INSPECTION
2008 Chevrolet Silverado 1500 2008 ENGINE Engine Mechanical - 6.6L - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado
Fig. 29: View Of Distance Between Bottom Of Roller & Roller Lifter Body 1. Push the roller towards the roller lifter body and measure the distance between the bottom of the roller and the roller lifter body. The production value is 0.989-1.0 mm (0.0389-
2008 Chevrolet Silverado 1500 2008 ENGINE Engine Mechanical - 6.6L - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado
2. Replace the valve lifter if the measurement exceeds the service limit. 3. Inspect the valve lifters for the following: The valve lifter body for scuffing and wear The valve lifter roller assembly for wear The valve lifter roller for smooth rotation VALVE ROCKER ARM AND SHAFT CLEANING AND INSPECTION Fig. 30: Measuring Rocker Arm Shaft Outside Diameter 1. Measure the rocker arm shaft outside diameter where the rocker arm is located. The production value is 21.979-22.0 mm (0.8653-0.8661 in) and the service limit is 21.85 mm
2008 Chevrolet Silverado 1500 2008 ENGINE Engine Mechanical - 6.6L - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado
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