Timing Chain: Service and Repair

Timing Chain and Sprocket Replacement

Removal Procedure

Tools Required
* J 28509-A Crankshaft Sprocket Remover
* J 41371 Reluctor Wheel Remover.
* J 8433-1 Reluctor Wheel Remover.

1. Disconnect the battery negative cable from the battery. Refer to Battery Cable Replacement (Negative Cable to Engine) Battery Cable Replacement (Negative Cable to Engine)Battery Cable Replacement (Positive Cable) Service and RepairBattery Cable Replacement (Negative Cable to Frame) Battery Cable Replacement (Negative Cable to Frame) in Engine Electrical.
2. Remove upper fan shroud from the radiator. Refer to Fan Shroud Replacement Service and Repair in Engine Cooling.
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 vehicle. Refer to Drive Belt Replacement Service and Repair.
5. Raise the vehicle and support with safety stands. Refer to Lifting and Jacking the Vehicle Service and Repair in General Information.
6. Remove the lower fan shroud from the radiator. Refer to Fan Shroud Replacement Service and Repair in Engine Cooling.
7. Remove the crankshaft balancer from the crankshaft. Refer to Crankshaft Balancer Replacement Service and Repair.
8. Remove the water pump from the engine block. Refer to Water Pump Replacement Service and Repair in Engine Cooling.
9. Remove the engine front cover from the engine block. Refer to Engine Front Cover Replacement Service and Repair.





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


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




11. Use the J 41371 to remove the crankshaft reluctor ring from the crankshaft. Refer to Crankshaft Position Sensor Reluctor Ring Replacement 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: Refer to Camshaft Sprocket/Camshaft Notice in Cautions and Notices.

2. Install the timing chain and sprocket to the camshaft. Refer to Timing Chain and Sprockets Installation 70. Timing Chain and Sprocket Installation.

Notice: Refer to Fastener Notice in Cautions and Notices.

3. Install the camshaft sprocket retaining bolts to the camshaft.

Tighten the retaining bolts to 34 Nm (25 lb ft)




4. Install the timing chain and sprocket to the camshaft.
5. Install the engine front cover to the engine block. Refer to Engine Front Cover Replacement Service and Repair.
6. Install a new crankshaft position reluctor ring to the crankshaft. Refer to Crankshaft Position Sensor Reluctor Ring Replacement Service and Repair.
7. Install the crankshaft balancer to the crankshaft. Refer to Crankshaft Balancer Replacement Service and Repair.
8. Install the water pump to the engine block. Refer to Water Pump Replacement Service and Repair in Engine Cooling.
9. Install the lower fan shroud to the radiator. Refer to Fan Shroud Replacement Service and Repair in Engine Cooling.
10. Lower the vehicle. Refer to Lifting and Jacking the Vehicle Service and Repair in General Information.
11. Install the drive belt to the vehicle. Refer to Drive Belt Replacement Service and Repair.
12. Install the upper fan shroud to the radiator. Refer to Fan Shroud Replacement Service and Repair in Engine Cooling.
13. Connect the battery negative cable to the battery. Refer to Battery Cable Replacement (Negative Cable to Engine) Battery Cable Replacement (Negative Cable to Engine)Battery Cable Replacement (Positive Cable) Service and RepairBattery Cable Replacement (Negative Cable to Frame) Battery Cable Replacement (Negative Cable to Frame) in Engine Electrical.