Removal Procedure
- Disconnect the negative battery cable.
- Remove the water pump from the engine block. Refer to Water Pump Removal
- Raise the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.
- Remove the drive gear for the fuel injection pump from the camshaft.
- Remove the engine front cover from the engine block. Refer to Engine Front Cover Replacement .
- Remove the crankshaft balancer from the crankshaft. Refer to Crankshaft Balancer Replacement .
- Remove the bolt that retains the timing chain sprocket to the camshaft.
- Remove the following components:
Caution: Before servicing any electrical component, the ignition and start switch must be in the OFF or LOCK position and all electrical loads must be OFF, unless instructed otherwise in these procedures. If a tool or equipment could easily come in contact with a live exposed electrical terminal, also disconnect the negative battery cable. Failure to follow these precautions may cause personal injury and/or damage to the vehicle or its components.
Important: Rotate the crankshaft to the top dead center position.
Important: Do not damage the square bosses of the crankshaft sprocket during the removal procedure.
| • | The timing chain |
| • | The camshaft sprocket |
| • | The crankshaft sprocket assembly |
Installation Procedure
- Install the crankshaft sprocket with the reluctor wheel square bosses facing the front.
- Install the camshaft sprocket with the timing chain. The mark on the camshaft sprocket should face the front.
- Install the camshaft sprocket retaining bolt.
- Install the engine front cover to the engine block. Refer to Engine Front Cover Replacement .
- Install the drive gear for the fuel injection pump to the camshaft.
- Install the water pump to the engine block. Refer to Water Pump Installation
- Install the crankshaft balancer to the crankshaft. Refer to Crankshaft Balancer Replacement .
- Lower the vehicle.
- Connect the negative battery cable.
- Test the fuel injection pump timing. Refer to Fuel Injection Pump Replacement in Engine Controls.
Important: Ensure that the timing marks are aligned.
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.
Tighten
Tighten the bolt to 170 N·m (125 lb ft).
