Camshaft Timing Chain, Removing and Installing
Camshaft Timing Chain, Removing and Installing
Special tools, testers and auxiliary items required
• Drift (T10060 A)
• Counter-holder tool (T10355)
• Assembly Tool 10352 (T10352)
• Securing pin (T40011)
• Torque Wrench (V.A.G 1331)
Removing
- Remove timing chain upper cover => [ Upper Timing Chain Cover, Removing and Installing ] Upper Timing Chain Cover, Removing and Installing.
CAUTION!
The control valve has a left thread.
- Remove the control valve using Assembly Tool 10352 (T10352) in the - direction of arrow -.
- Remove the bolts - arrows - and remove the bearing bracket.
- Rotate the vibration damper using the Counter Hold Tool (T10355) into the "OT" position - arrow -.
• The notch on the vibration damper must line up with the arrow marking on the timing chain lower cover.
• The markings - 1 - on the camshafts must point upward.
- Remove the lower timing chain cover => [ Chain Drive ] Chain Drive.
- Press the oil pump chain tensioner in the - direction of the arrow - and secure it with a locking pin (T40011).
- Remove the oil pump chain tensioner - 1 -.
- Remove the oil pump chain tensioner.
- 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 Locking Pin (T40011).
- Remove the timing chain tensioning rail - 2 -.
• The intake camshaft switches in the engine direction of rotation
- Remove the timing chain.
Installing
• Tightening specifications => [ 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 chain sprockets.
• Hold the wrench until the tensioning rail is installed.
- Mount the timing chain on the exhaust camshaft.
- Mount the timing chain on the crankshaft.
- Turn the intake camshaft using the wrench in the - direction of the arrow - and mount the timing chain.
- Install the timing chain tensioning rail and tighten the bolt - 2 -.
- Mount the bearing bracket and hand tighten the bolts - arrows -.
- Remove the locking pin (T40011).
- Tighten the bearing bracket bolts - arrows -=> [ Camshaft Timing Chain, Assembly Overview ] Camshaft Timing Chain, Assembly Overview.
The rest of the assembly is basically a reverse of the disassembling sequence.