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NOTE: REMOVE ALL SHIMS BEFORE REASSEMBLING ENGINE ALTERNATIVE METHOD 1. With the weight of the crankshaft being supported by a jack under the counterweight adjacent to the 2. Place a piece of Plastigage across the entire width of the bearing shell in the cap approximately 6.35 3. Remove the bearing cap and compare the width of the flattened Plastigage with the metric scale pro- 4. Plastigage is available in a variety of clearance ranges. The 0.025-0.076 mm (.001-.003 inch) is usually the most appropriate for checking engine bearing proper specifications. CRANKSHAFT STANDARD PROCEDURE MEASURING CRANKSHAFT END PLAY 1. Mount a dial indicator to front of engine, locating probe on nose of crankshaft. 2. Move crankshaft all the way to the rear of its travel. 3. Zero the dial indicator. 4. Move crankshaft all the way to the front and read the dial indicator. (Refer to 9 - ENGINE - SPECIFI- CRANKSHAFT END PLAY CHECK - OPTIONAL 1. Move crankshaft all the way to the rear of its travel using a lever inserted between a main bearing cap and a crankshaft cheek using care not to damage any bearing surface. Do not loosen main bearing cap. 2. Use a feeler gauge between number 3 thrust bearing and machined crankshaft surface to determine end play. (Refer to 9 - ENGINE - SPECIFICATIONS) for crankshaft end-play specifications. 9 - 2518 ENGINE - 8.3L - SERVICE INFORMATION DR/DH |