Camshaft Timing Chain

Camshaft Timing Chain

Special tools, testers and auxiliary items required

• Locking Pin (T10060 A)

• Assembly Tool (T10352)

• Counter Hold Tool (T10355)

• Locking Pin (T40011)

• Torque Wrench (5-50 Nm) (V.A.G 1331)

Removing

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

- Use the counter hold tool (T10355) to turn the vibration damper to Top Dead Center (TDC) - arrow -:






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

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

- Remove the lower timing chain cover. Refer to one of the following:

• Jetta/GLI for MY 08 through 10, Jetta SportWagen (US)/Jetta Wagon (Canada) for MY 09. Refer to => [ Lower Timing Chain Cover ] Lower Timing Chain Cover.

• GLI from MY 12. Refer to => [ Lower Timing Chain Cover ] Lower Timing Chain Cover.


The control valve has a left hand threads.

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






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






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






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

- Remove the oil pump drive chain.

The locking wedge in the chain tensioner must be lifted in order to release the tension from the chain tensioner. Sand the end of a locking pin (T40011) down to a point. A screwdriver with a head approximately 1.5 mm wide can also be used.


There is a risk of damaging the chain tensioner. Proceed very carefully.

- 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 using the locking pin (T40011).






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






• The intake camshaft switches in the engine rotation direction.

- Remove the guide rail guide pins - 1 - and rail.

- Remove the timing chain.

Installing

• The chain tensioner for the tensioning rail is installed and secured using the locking pin (T40011).

• The crankshaft sprocket is secured by the thrust piece (T10368).

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

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

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

• Hold the wrench until the tensioning and guide rails are installed.

- Check the crankshaft TDC position.






- Install the timing chain on the exhaust camshaft.






- Install the timing chain on the crankshaft.

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

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






- Install the timing chain guide rail and tighten the guide pins - 1 -.

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






- Remove the locking pin (T40011) from the chain tensioner.

- Tighten the bearing bracket bolts - arrows - to specifications. Refer to => [ Camshaft Timing Chain Overview ] Camshaft Timing Chain Overview.

Further installation is in the reverse order of removal.