Camshaft Timing Chain

Camshaft Timing Chain

Special tools, testers and auxiliary items required

• Locking pin (T10060A)

• Assembly tool (T10352)

• Counter holder tool (T10355)

• Locking pin (T40011)

• Torque wrench 5-50 Nm (VAG 1331)

Removing

- Remove the upper timing chain cover. Refer to --> [ Upper Timing Chain Cover ] Upper Timing Chain Cover.

CAUTION!
The control valve has left hand threads.

- Remove the control valve using the (T10352) in the - direction of the arrow -.





- Remove the bolts - arrows - and remove the bearing bracket.





- Rotate the vibration damper to the "OT" position - arrow - using the (T10355):





• The notch on the vibration damper must line up with the arrow on the lower timing chain cover.

• The markings - 1 - on the camshafts must point upward.

- Remove the lower timing chain cover. Refer to --> [ Lower Timing Chain Cover ] Lower Timing Chain Cover.

- Press the oil pump chain tensioner in the - direction of the arrow - and secure it with the (T40011).





- Remove the oil pump chain tensioner guide pin - 1 -.

- Remove the oil pump drive chain.

- Using a screwdriver, lift the chain tensioner locking wedge in the - direction of arrow 1 -, press the timing chain tensioning rail in the - direction of arrow 2 - and secure it with the (T40011).





- Remove the timing chain tensioning rail guide pin - 2 -.





• The intake camshaft switches in the engine direction of rotation

- Remove the timing chain.

Installing

• Tightening specifications, refer to --> [ Camshaft Timing Chain Assembly Overview ] Camshaft Timing Chain Assembly Overview.

• The following must be performed in one sequence; 2 technicians are necessary.

• The painted links of the timing chain must be positioned on the markings on the sprockets.

• Hold the wrench until the tensioning rail is installed.

- Install the timing chain on the exhaust camshaft sprocket.





- Install the timing chain on the crankshaft sprocket.

- Rotate the intake camshaft using the wrench in the - direction of the arrow - and install the timing chain.

- Install the timing chain tensioning rail and tighten the guide pin - 2 -.





- Install the bearing bracket and hand tighten the bolts - arrows -.





- Remove the (T40011).

- Tighten the bearing bracket bolts - arrows -. Tightening specifications, refer to --> [ Camshaft Timing Chain Assembly Overview ] Camshaft Timing Chain Assembly Overview.

The rest of the installation is basically a reverse of the removal sequence.