C6.6 Industrial Engine Idler Gear - Remove Caterpillar


Idler Gear - Remove
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1.1. Removal Procedure

Removal Procedure

Table 1
Required Tools 
Tool  Part Number  Part Description  Qty 
364-9107  Timing Pin (Fuel Injection Pump) 
230-6284  Timing Pin (Camshaft) 
136-4632  Timing Pin (Crankshaft) 
298-5564  T40 Torx Socket 

Start By:

  1. Remove the front cover. Refer to Disassembly and Assembly, "Front Cover - Remove and Install" for the correct procedure.

  2. Remove the valve mechanism cover. Refer to Disassembly and Assembly, "Valve Mechanism Cover - Remove and Install" for the correct procedure.

Note: Care must be taken in order to ensure that the fuel injection pump timing is not lost during the removal of the idler gear. Carefully follow the procedure in order to remove the fuel pump gear.


NOTICE

Keep all parts clean from contaminants.

Contaminants may cause rapid wear and shorten component life.




    Illustration 1g01994555


    Illustration 2g01994553

  1. Rotate the crankshaft so that number one piston is at top dead center on the compression stroke. Refer to System Operation, Testing and Adjusting, "Finding Top Center Position for No.1 Piston" for the correct procedure.

  2. Remove plug (2) from the cylinder block and remove O-ring seal (1) from the plug.

  3. Ensure that Tooling (C) is installed in Hole (Y) in the cylinder block. Use Tooling (C) in order to lock the crankshaft in the correct position.

  4. Ensure that Tooling (B) is installed into Hole (X) in camshaft gear (3). Use Tooling (B) in order to lock the camshaft in the correct position.

    Note: Ensure that the gears are marked in order to show alignment. Refer to Illustration 2.

  5. Use Tooling (A) in order to lock the fuel injection pump gear in the correct position. Refer to Disassembly and Assembly, "Fuel Injection Pump - Remove" for the correct procedure.


    Illustration 3g01994556

  6. Use Tooling (D) in order to loosen threaded inserts (5) on all rocker arms (6). Unscrew threaded inserts (5) on all rocker arms (6) until all valves are fully closed.

    Note: Failure to ensure that ALL threaded inserts are fully unscrewed can result in contact between the valves and pistons.



    Illustration 4g01994576


    Illustration 5g01994557

  7. Mark plate (8) in order to show orientation.

    Note: Identification will ensure that the plate can be installed in the original orientation.

  8. Remove bolts (7).

  9. Remove plate (8).

  10. Remove the assembly of idler gear (4).

  11. Remove hub (9) from the recess in the front housing.

Information System:

C6.6 Industrial Engine Gear Group (Front) - Remove and Install - Heavy Duty Gear Group (Front)
C6.6 Industrial Engine Gear Group (Front) - Remove and Install
C6.6 Industrial Engine Crankshaft Front Seal - Remove and Install - Crankshaft Front Seal for Heavy Duty Front Cover
C6.6 Industrial Engine Crankshaft Front Seal - Remove and Install
C4.4 Industrial Engine Engine Oil Pump
C6.6 Industrial Engine Vibration Damper and Pulley - Install
C6.6 Industrial Engine Vibration Damper and Pulley - Remove
MP15, MP20, MP30 and MP40 Multi-Processors Wear Plates - Inspect/Replace
MP15, MP20, MP30 and MP40 Multi-Processors Rotator Head Bolts - Inspect
MP15, MP20, MP30 and MP40 Multi-Processors Rotator Head Bolts - Inspect
C15 and C18 Tier 4 Final Engines Exhaust Cooler (NRS) - Test
MP15, MP20, MP30 and MP40 Multi-Processors Rotator Head Bolts - Check
C6.6 Industrial Engine Idler Gear - Install
C6.6 Industrial Engine Housing (Front) - Remove
C6.6 Industrial Engine Housing (Front) - Remove - Heavy Duty Housing (Front)
2010/05/13 The Gas Strut on Backhoe Loader Steering Columns Has Been Improved {4309, 4310, 4338}
C6.6 Industrial Engine Housing (Front) - Install
C6.6 Industrial Engine Housing (Front) - Install - Heavy Duty Housing (Front)
C6.6 Industrial Engine Accessory Drive - Remove and Install - Accessory Drive SAE "A"
C6.6 Industrial Engine Accessory Drive - Remove and Install - Accessory Drive SAE "B"
C6.6 Industrial Engine Crankcase Breather - Remove
C6.6 Industrial Engine Crankcase Breather - Install
C6.6 Industrial Engine Valve Mechanism Cover - Remove and Install
C13 Engines for Caterpillar Built Machines Temperature Sensor (DPF Inlet, Flame Detect)