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Fig. 553: Exhaust Valve Oil Stem Seal 1. Assemble the valve into the proper valve guide. IMPORTANT: The exhaust valve oil stem seal has the letters EX (1) molded into the top of the seal. The exhaust valve oil stem seal
2008 Chevrolet Silverado 1500 2008 ENGINE Engine Mechanical - 4.3L - Sierra & Silverado
2. Select the proper valve stem oil seal for the specific valve guide. 3. Lubricate the valve stem oil seal and the outside diameter of the valve guide with clean engine oil. 4. Assemble the valve stem oil seal onto the valve stem.
2008 Chevrolet Silverado 1500 2008 ENGINE Engine Mechanical - 4.3L - Sierra & Silverado
Fig. 554: Valve Stem Oil Seal Proper Installation Position 5. Using the J 42073 , install the valve stem oil seal onto the valve guide. See Special Tools. 1. Tap the valve stem oil seal onto the valve guide until the J 42073 bottoms against the valve spring seat. See Special Tools. 2. Inspect the valve stem oil seal. The valve stem oil seal should not be bottomed against the valve guide. There should be a 1-2 mm (0.03937-0.07874 in) gap between the bottom edge of the CAUTION: Refer to SAFETY GLASSES CAUTION .
2008 Chevrolet Silverado 1500 2008 ENGINE Engine Mechanical - 4.3L - Sierra & Silverado
Fig. 555: Identifying Valve Components 6. Install the valve spring (3). 7. Install the valve spring cap (2) onto the valve spring (3), over the valve stem.
2008 Chevrolet Silverado 1500 2008 ENGINE Engine Mechanical - 4.3L - Sierra & Silverado
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