Timing Components: Service and Repair
Timing Drive Components
This is a "Trustmark Authoring Standards (TAS) Repair Procedure"
- TAS style procedures can be identified by steps that have no accompanying step text and the magenta color of the electrical connectors and fasteners such as nuts, bolts, clamps or clips.
- TAS removal and installation procedures use a sequence of color illustrations to indicate the order to be followed when removing/disassembling or installing/assembling a component.
- Many of the TAS procedures will have the installation information within the removal steps.
- The TAS color illustrations use a variety of symbols to indicate important details of the procedures. It is important to understand these symbols in order to properly used the TAS procedures.
Refer to How to Use TAS Procedures and TAS Symbol Glossary at Vehicle | Description and Operation for additional information on these TAS procedures.
For additional information, refer to How to Use TAS Procedures How to Use TAS Procedures
For additional information, refer to TAS Symbol Glossary TAS Symbols Glossary
Removal
CAUTION: Check all timing components for wear and install new components if required.
For additional information, refer to Battery Disconnect and Connect Battery Disconnect and Connect
WARNING: Make sure to support the vehicle with axle stands.
1 Raise and support the vehicle.
For additional information, refer to Timing Cover Service and Repair
CAUTION: Only rotate the crankshaft clockwise.
2 Install the special tool.
Special Service Tool
Timing Tool, 303-1447
CAUTION: If the variable valve timing (VVT) units are knocked or dropped then the VVT must be replaced.
3 Remove the timing chain with the VVT units.
CAUTION: If the VVT is knocked or dropped then the VVT must be replaced.
4 Remove the timing chain with the VVT units.
CAUTION: Discard the friction washer.
Installation
CAUTION: Install a new friction washer.
Torque to: 12 Nm
1 Install the special tool.
Special Service Tool
Camshaft Rotating Tool, 303-1452
CAUTION: When tightening the special tool to the camshafts make sure that the camshafts are rocked using the special tool 303-1482 until there is no more movement.
2 Install the special tool.
Special Service Tool
Timing Tool Camshaft Alignment, 303-1445
3 Remove the special tool.
4 Install the special tool.
Special Service Tool
Camshaft Rotating Tool, 303-1452
CAUTION: When tightening the special tool to the camshafts make sure that the camshafts are rocked using the special tool 303-1482 until there is no more movement.
5 Install the special tool.
Special Service Tool
Timing Tool Camshaft Alignment, 303-1445
6 Remove the special tool.
CAUTION: Do not allow the camshaft to rotate.
CAUTION: If the VVT is knocked or dropped then the VVT must be replaced.
NOTE:
Do not tighten at this stage.
Install the timing chain with the VVT units.
Make sure that all the timing chain alignment marks are in the positions shown.
Torque to: 25 Nm
CAUTION: Do not release the timing chain tensioner locking pin at this stage.
Torque to: 10 Nm
CAUTION: Do not allow the camshafts to rotate.
CAUTION: If the VVT is knocked or dropped then the VVT must be replaced.
NOTE:
Do not tighten at this stage.
Install the timing chain with the VVT units.
Make sure that all the timing chain alignment marks are in the positions shown.
Torque to: 25 Nm
CAUTION: Do not release the timing chain tensioner locking pin at this stage.
Torque to: 10 Nm
CAUTION: Do not use mechanical force.
7 Make sure that the tensioner is fully deployed.
CAUTION: Do not use mechanical force.
8 Make sure that the tensioner is fully deployed.
Release and reposition the oil suction tube to one side.
9 Install the special tool.
Special Service Tool
Tensioner Tool, 303-1482
CAUTION: Apply the torque to the end of the special tool.
CAUTION: Make sure that the torque wench is aligned with the special tool as illustrated in the graphic.
Install the torque wrench to the special tool.
Torque to: 35 Nm
CAUTION: Make sure that the torque wrench does not move whilst tightening the VVT bolts.
NOTE:
Make sure to tighten the exhaust VVT unit bolts first.
Torque to: 32 Nm
Torque to: 10 Nm
10 Install the special tool.
Special Service Tool
Tensioner Tool, 303-1482
CAUTION: Apply the torque to the end of the special tool.
CAUTION: Make sure that the torque wench is aligned with the special tool as illustrated in the graphic.
Install the torque wrench to the special tool.
Torque to: 35 Nm
CAUTION: Make sure that the torque wrench does not move whilst tightening the VVT bolts.
NOTE:
Make sure to tighten the inlet VVT unit bolts first.
Torque to: 32 Nm
11 Remove the special tool.
12 Remove the special tool.
13 Remove the special tool.
14 Rotate the engine two complete turns clockwise.
CAUTION: Only rotate the crankshaft clockwise.
15 Install the special tool.
CAUTION: If the special tool cannot be installed, the timing chain installation steps must be repeated.
16 Install the special tool.
CAUTION: If the special tool cannot be installed, the timing chain installation steps must be repeated.
17 Install the special tool.
18 Remove the special tool.
19 Remove the special tool.
20 Remove the special tool.
Torque to: 10 Nm
For additional information, refer to Timing Cover Service and Repair
For additional information, refer to Battery Disconnect and Connect Battery Disconnect and Connect