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J 8087 Cylinder Bore Gage Cleaning and Inspection
2008 Chevrolet Silverado 1500 2008 ENGINE Engine Mechanical - 4.3L - Sierra & Silverado
2008 Chevrolet Silverado 1500 2008 ENGINE Engine Mechanical - 4.3L - Sierra & Silverado
Fig. 459: Engine Inspection Areas 1. Clean all the remaining sealing or gasket material from the sealing surfaces. 2. Clean the engine block with cleaning solvent. 3. Flush the engine block with clean water or steam. 4. Clean the cylinder bores. 5. Clean the oil galleries and the oil passages. 6. Clean the scale and the deposits from the coolant passages. 7. Clean the engine block cylinder head bolt holes. 8. After cleaning the engine block, spray or wipe the cylinder bores and the machined surfaces with clean engine oil. 9. Inspect the following areas: Coolant jackets (1) for cracks Cylinder bores (2) for scratches or gouging Valve lifter bores (3) for excessive scoring or wear Threaded holes (4) for damage Crankshaft bearing webs (5) for cracks Crankshaft bearing caps (6) and the crankshaft bearing bores (7) for damage The crankshaft bearing bores should be round and uniform when measuring the The surface where the crankshaft bearings contact the crankshaft bearing bore If a crankshaft bearing cap is damaged and requires replacement, replace the CAUTION: Refer to SAFETY GLASSES CAUTION . NOTE: Clean all dirt, debris, and coolant from the engine block
2008 Chevrolet Silverado 1500 2008 ENGINE Engine Mechanical - 4.3L - Sierra & Silverado
Engine block core hole plug bores (8) for damage Engine block (9) for cracks or damage Engine mount bosses (10) for damage Fig. 460: Measuring Cylinder Bore
2008 Chevrolet Silverado 1500 2008 ENGINE Engine Mechanical - 4.3L - Sierra & Silverado
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