Timing Chain: Service and Repair

Camshaft Timing Chain and Sprocket Replacement

Removal Procedure

Tools Required
- J 28509-A Crankshaft Sprocket Remover
- J 41371 Reluctor Wheel Remover

1. Disconnect the battery negative cable from the battery.
2. Remove upper fan shroud from the radiator. Fan Shroud Replacement (Upper)
3. Rotate the engine until the timing marks on the crankshaft balancer and the engine front cover are on TDC.
4. Remove the drive belt from the vehicles drive pulleys. Service and Repair
5. Raise the vehicle and support with safety stands.
6. Remove the lower fan shroud from the radiator. Fan Shroud Replacement (Lower)
7. Remove the crankshaft balancer from the crankshaft. Service and Repair
8. Remove the water pump from the engine block. Service and Repair
9. Remove the engine front cover from the engine block. Service and Repair






Important: If the crankshaft position reluctor ring is removed, a new crankshaft position reluctor ring sensor must be installed.

10. Aligned the timing marks on the camshaft and crankshaft gears.






11. Use the J 41371 to remove the crankshaft reluctor ring from the crankshaft. Service and Repair






12. Remove the camshaft sprocket retaining bolts.
13. Remove the timing chain and camshaft sprocket.






14. Use the J 28509-A to remove the crankshaft sprocket.

Installation Procedure

Tools Required
- J 22102 Crankshaft Sprocket Installer






Important: Ensure the following conditions exist:
- The camshaft and the crankshaft timing marks are aligned
- The camshaft dowel pin and the camshaft sprocket holes are properly aligned
- The gears and the chain mesh properly

1. Use the J 22102 to install the crankshaft sprocket.






Notice: Do not hammer the camshaft sprocket onto the camshaft. To do so may dislodge the rear camshaft plug and damage the camshaft.

2. Install the timing chain and sprocket to the camshaft.

Notice: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.

3. Install the camshaft retaining bolts to the camshaft.

Tighten
Tighten the retaining bolts to 30 Nm (22 lb ft).

4. Install the timing chain and sprocket to the camshaft.
5. Install the engine front cover to the engine block. Service and Repair






6. Install a new crankshaft position reluctor ring to the crankshaft. Service and Repair
7. Install the crankshaft balancer to the crankshaft. Service and Repair
8. Install the water pump to the engine block. Service and Repair
9. Install the lower fan shroud to the radiator. Fan Shroud Replacement (Lower)
10. Lower the vehicle.
11. Install the drive belt on the vehicle drive pulleys. Service and Repair
12. Install the upper fan shroud to the radiator. Fan Shroud Replacement (Upper)
13. Connect the battery negative cable to the battery.