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Fig. 23: Grinding Valve 1. Remove the carbon from the valve guide and valve seat surface. 2. Resurface the valve face to 45 degrees. If valve margin falls below specifications after resurfacing then discard valve. 3. Use a suitable tool to bring the valve contact width to the standard value. The valve seat angle is 45 degrees.
2008 Chevrolet Silverado 1500 2008 ENGINE Engine Mechanical - 6.6L - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado
Fig. 24: Turning Valve Back & Forth 4. Apply valve lapping compound to the valve seat surface. 5. Insert the valve into the cylinder head. 6. Turn the valve back and forth in its seat to lap the valve face to the valve seat. CYLINDER HEAD ASSEMBLE Tools Required J 44640 Valve Stem Seal Installer. See Special Tools . J 8062 Valve Spring Compressor Assemble
2008 Chevrolet Silverado 1500 2008 ENGINE Engine Mechanical - 6.6L - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado
Fig. 25: View Of Valves & Cylinder Head 1. Install the valves into the cylinder head. IMPORTANT: Lubricate the valve stem with clean engine oil before installing.
2008 Chevrolet Silverado 1500 2008 ENGINE Engine Mechanical - 6.6L - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado
2. Install the valve spring lower seat. Fig. 26: Installing Valve Stem Using J 44640 3. Install the valve stem seal using J 44640 . See Special Tools . 4. Install the valve spring with the painted end towards the cylinder head. 5. Install the valve spring upper seat.
2008 Chevrolet Silverado 1500 2008 ENGINE Engine Mechanical - 6.6L - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado
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