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1. Remove the crankshaft oil seal (141) from the rear housing. 2. Clean the housing in solvent. Remove the sealant from the housing oil pan surface. Refer to Replacing Engine Gaskets. 3. Dry the housing with compressed air. 4. Inspect the gasket sealing surfaces for excessive scratches or gouging. 5. Inspect the housing-to-oil pan threaded bolt holes for damaged threads or debris. 6. Inspect the crankshaft oil seal mounting bore for damage. ENGINE BLOCK VALLEY COVER CLEANING AND INSPECTION Fig. 496: View Of Engine Valley Cover CAUTION: Refer to Safety Glasses Caution .
2008 Hummer H2 2008 ENGINE Engine Mechanical - 6.2L - H2
Courtesy of GENERAL MOTORS CORP. 1. Clean the valley cover in solvent. 2. Dry with compressed air. 3. Inspect for damaged threads (1) and damaged sealing surfaces (2). VALVE ROCKER ARM COVER CLEANING AND INSPECTION Fig. 497: View Of Valve Rocker Arm Cover CAUTION: Refer to Safety Glasses Caution .
2008 Hummer H2 2008 ENGINE Engine Mechanical - 6.2L - H2
1. Inspect the oil fill tube (423) for a loose fit or damage. 2. Inspect the covers (505) for the following conditions: Scoring or damage to the gasket surfaces Ventilation system passages for restrictions Threaded bolt holes for damage or debris OIL PAN CLEANING AND INSPECTION IMPORTANT: Do not use the valve rocker arm cover gasket again. Remove the ignition coils before cleaning the cover in Do not remove the oil fill tube from the covers unless
2008 Hummer H2 2008 ENGINE Engine Mechanical - 6.2L - H2
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