5_108.bk Page 201 Thursday, October 4, 2001 11:45 AM
REPAIR INSTRUCTIONS 268
Figure 268 — Main Bearing Insert Part Numbers and Locations 1. Upper Insert — 646B348; Lower Insert — 646B343 2. Upper Insert — 646B345; Lower Insert — 646B343 3. Upper Insert — 646B345; Lower Insert — 646B343 4. Upper Insert — 646B349; Lower Insert — 646B344
5. Apply a light coat of clean engine oil on the insert surfaces and on the crankshaft main bearing journals.
5. Upper Insert — 646B345; Lower Insert — 646B343 6. Upper Insert — 646B345; Lower Insert — 646B343 7. Upper Insert — 646B350; Lower Insert — 646B344
6. Using a suitable lifting device, position the crankshaft in the cylinder block.
Due to the considerable weight of the crankshaft, extreme care must be observed during installation. No nicks, scratches, burrs, or any other kinds of distress are acceptable on the main bearing and/or crankshaft journals and fillets.
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