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INSPECTION NOTE: Thoroughly inspect the connecting rod bearing bores and main bearing bores for scoring, blueing or If connecting rod bearing bores show damage, the cylinder heads must be removed to service the piston and rod 1. If required, remove the main bearing halves from the cylinder block and bedplate. 2. Thoroughly clean the bedplate to cylinder block sealing surfaces and main bearing bores. Remove all oil and sealant residue. 3. Inspect the bedplate main bearing bores for cracks, scoring or severe blueing. If either condition exists the engine must be replaced. 4. Inspect the crankshaft thrust washers for scoring, scratches, wear or blueing. If either condition exist replace the thrust washers. 5. Inspect the oil pan gasket/windage tray for splits, tears or cracks in the gasket sealing surfaces. Replace gasket as necessary. INSTALLATION CAUTION: Main bearings are select fit. Refer to CAUTION: When installing crankshaft, use care NOTE: Apply sealant to the tone wheel retaining 1. Lubricate upper main bearing halves with clean engine oil. 2. Install the crankshaft tone wheel. Torque the mounting screws to 15 N·m (11 ft. lbs.). 3. Position crankshaft in cylinder block. 4. Install the thrust washers (1). 9 - 1518 ENGINE - 3.7L KJ |