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Fig. 382: Checking Deck Surface For Flatness 1. Clean the sealing material from all gasket mating surfaces. 2. Clean the engine block with a cleaning solution. 3. Flush the engine block with clean water. 4. Clean the oil passages. 5. Coat the cylinder bores and the machined surfaces with engine oil. 6. Inspect the threaded holes. Clean the holes with a tap, if needed. 7. Use a straight edge and a feeler gage to check the deck surface for flatness. Carefully
2006 Hummer H3 2006 ENGINE Engine Mechanical - 3.5L (L52) - H3
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