Overview - Timing Mechanism Drive Chain

Fig 1: Identifying Timing Mechanism Drive Chain Overview

Courtesy of AUDI OF AMERICA, LLC

Guide Rail
Bolt
- 17 Nm +90°
- Replacing
Bolt
- Tightening specification, refer to -Item 5-.
Bolts
- Tightening specification, refer to -Item 13-.
Mounting Pin
- Left camshaft timing chain drive sprocket
Drive Chain Sprocket
- For the left camshaft control chain
Bolt
- Tightening specification, refer to -Item 10-.
Bearing Plate
- Left camshaft timing chain drive sprocket
- Asymmetrical version
Drive chain
- For timing mechanism
- Before removing, mark the direction of rotation with paint
- Removing and installing, refer to TIMING MECHANISM DRIVE CHAIN, REMOVING AND INSTALLING .
Guide Rail
Bolt
- 17 Nm +90°
- Replacing
Thrust Washer
- Asymmetrical version
- Installed position, refer to Figure
Drive Chain Sprocket
- For the right camshaft timing chain
Mounting Pin
- For the right camshaft timing chain drive sprocket
- Asymmetrical version
- Installed position, refer to Figure
Seal
- Replacing
Chain Tensioner
Bolt
- 5 Nm +90°
- Replacing
Crankshaft