C6.6 Engines for Caterpillar Built Machines Crankshaft - Remove Caterpillar


Crankshaft - Remove
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1.1. Removal Procedure

Removal Procedure

Table 1
Required Tools 
Tool  Part Number  Part Description  Qty 
1U-8221  Lifting Sling 

Start By:

  1. Remove the engine oil pump. Refer to Disassembly and Assembly, "Engine Oil Pump - Remove" for the correct procedure.

  2. Remove the front housing. Refer to Disassembly and Assembly, "Housing (Front) - Remove" for the correct procedure.

  3. Remove the crankshaft rear seal. Refer to Disassembly and Assembly, "Crankshaft Rear Seal - Remove" for the correct procedure.

  4. Remove the rocker shaft and pushrods. Refer to Disassembly and Assembly, "Rocker Shaft and Pushrod - Remove" for the correct procedure.

  5. If necessary, remove the cylinder head. Refer to Disassembly and Assembly, "Cylinder Head - Remove" for the correct procedure.

  6. If necessary, remove the pistons and connecting rods. Refer to Disassembly and Assembly, "Pistons and Connecting Rods - Remove" for the correct procedure.


NOTICE

If the crankshaft has been reground or if the crankshaft has been replaced, the height of the piston above the cylinder block must be inspected. It is necessary to remove the cylinder head in order to inspect the height of the piston above the cylinder block.



NOTICE

Keep all parts clean from contaminants.

Contaminants may cause rapid wear and shortened component life.


  1. The engine should be mounted on a suitable stand and placed in the inverted position.

  2. If the cylinder head, the pistons and the connecting rods have not been removed already, remove the connecting rod bearings. Refer to Disassembly and Assembly, "Connecting Rod Bearings - Remove" for the correct procedure.

  3. Ensure that the main bearing caps are marked for the location and orientation.


    Illustration 1g01341323

  4. Remove bolts (1) and main bearing caps (2) from the cylinder block.


    Illustration 2g01341324

  5. Remove lower main bearing shells (3) from main bearing caps (2). Keep the lower main bearing shells with the respective main bearing caps.

    Note: The lower main bearing shells are plain bearings that have no oil holes.

  6. Remove the two thrust washers from number six main bearing in the cylinder block.


    Illustration 3g01333482

  7. Attach Tooling (A) and a suitable lifting device to crankshaft (4). Lift crankshaft (4) out of the cylinder block. The weight of the crankshaft is approximately 61 kg (134.5 lb).

    Note: Do not damage any of the finished surfaces on the crankshaft. When the crankshaft is removed from the engine, the crankshaft must be supported on a suitable stand in order to prevent damage to the crankshaft timing ring.



    Illustration 4g01341389

  8. Remove upper main bearing shells (5) from the cylinder block. Keep the upper main bearing shells with the respective main bearing caps.

    Note: The upper main bearing shells have a groove and two oil holes.

  9. If necessary, remove the crankshaft timing ring. Refer to Disassembly and Assembly, "Crankshaft Timing Ring - Remove and Install" for the correct procedure.

  10. If necessary, remove the crankshaft gear. Refer to Disassembly and Assembly, "Crankshaft Gear - Remove and Install" for the correct procedure.

Information System:

C6.6 Engines for Caterpillar Built Machines Crankshaft Main Bearings - Remove and Install - Crankshaft in position
C6.6 Engines for Caterpillar Built Machines Connecting Rod Bearings - Install - Connecting rods in position
C6.6 Engines for Caterpillar Built Machines Connecting Rod Bearings - Remove - Connecting rods in position
C6.6 Engines for Caterpillar Built Machines Pistons and Connecting Rods - Install
C6.6 Engines for Caterpillar Built Machines Pistons and Connecting Rods - Assemble
C6.6 Engines for Caterpillar Built Machines Pistons and Connecting Rods - Disassemble
C6.6 Engines for Caterpillar Built Machines Pistons and Connecting Rods - Remove
C6.6 Engines for Caterpillar Built Machines Piston Cooling Jets - Remove and Install
C6.6 Engines for Caterpillar Built Machines Engine Oil Pan Plate - Remove and Install - Aluminum Oil Pan
C6.6 Engines for Caterpillar Built Machines Engine Oil Pan - Install - Cast Iron Oil Pan
C6.6 Engines for Caterpillar Built Machines Engine Oil Pan - Install - Aluminum Oil Pan
C6.6 Engines for Caterpillar Built Machines Engine Oil Pan - Remove - Aluminum Oil Pan
C6.6 Engines for Caterpillar Built Machines Crankshaft - Install
C6.6 Engines for Caterpillar Built Machines Crankshaft Timing Ring - Remove and Install
C6.6 Engines for Caterpillar Built Machines Crankshaft Gear - Remove and Install
C6.6 Engines for Caterpillar Built Machines Position Sensor (Fuel Injection Pump) - Remove and Install
C6.6 Engines for Caterpillar Built Machines Coolant Temperature Sensor - Remove and Install
C6.6 Engines for Caterpillar Built Machines Engine Oil Pressure Sensor - Remove and Install
C6.6 Engines for Caterpillar Built Machines Fuel Pressure Sensor - Remove and Install
C6.6 Engines for Caterpillar Built Machines Boost Pressure Sensor - Remove and Install
C6.6 Engines for Caterpillar Built Machines Inlet Air Temperature Sensor - Remove and Install
C6.6 Engines for Caterpillar Built Machines Glow Plugs - Remove and Install
C6.6 Engines for Caterpillar Built Machines Alternator Belt - Remove and Install
C6.6 Engines for Caterpillar Built Machines Fan - Remove and Install