C2.4 Tier 4 Final Engines for Caterpillar Built Machines Crankshaft - Install Caterpillar

Installation Procedure

1. Refer to Specifications, "Crankshaft" for more information. If necessary, replace the crankshaft or recondition the crankshaft.

2. Ensure that the parent bores for the crankshaft bearings in the cylinder block are clean. Ensure that the threads for the bearing bolts in the cylinder block are clean and free from damage.

3. Clean the crankshaft bearings and the thrust washers. Inspect the bearings and the thrust washers for wear or damage. If necessary, replace the bearings and the thrust washers.

   Note: If the crankshaft bearings are replaced, check whether oversize bearings were previously installed. If the thrust washers are replaced, check whether oversize thrust washers were previously installed.

4. Ensure that all the lubrication passages are clean and free of debris.
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   Illustration 1	g06016885

5. Install crankshaft bearing. (7).
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6. When you install the main bearing case assemblies, point the mark FLYWHEEL (Y) to the flywheel.
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7. Install main bearings (6) and thrust bearings (5)

   Note: When you install thrust bearings (5) point the oil grooves externally.

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   Illustration 5	g06016479

8. Install main bearing case assemblies (4) and bolts (3). Tighten bolts (3) to a torque of 46 N·m to 50 N·m (34 lb ft to 37 lb ft).

   Note: Install the main bearing case assemblies (4) in the initial positions. Since the diameters of the main bearing case assemblies are different, install them in the sequence of their marks on the gear case side.

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9. Rotate crankshaft (2) and align the crankshaft journals with the reliefs (X) in the Cylinder Block. Use two people to install the crankshaft into the cylinder block. The weight of crankshaft (2) is approximately 24 kg (53 lb).

10. Tighten bolts (1) to a torque of 69 N·m to 73 N·m (51 lb ft to 54 lb ft).

11. Check the crankshaft end play, side clearance, and oil clearance. Refer to Specifications, "Crankshaft" for more information.

12. Check the piston height. Refer to Systems Operation, Testing and Adjusting, "Piston Height - Inspect" for more information.

End By:

1. Install pistons and connecting rods.