Procedures

Crankshaft, Locking

=> [ To Check/Adjust Valve Timing ]

Special tools, testers and auxiliary items required

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

• Crankshaft Adapter (T03003)

• Locking Pin (T40069)

Procedure

- Remove the noise insulation.

- Remove the front part of the right front wheel housing liner.

- Install the crankshaft adapter (T03003) over the bolts for the vibration damper.






The crankshaft adapter (T03003) can only be installed correctly in one position.

- Rotate the crankshaft in engine rotation direction - arrow - far enough until the arrow - A - on the crankshaft adapter (T03003) points downward vertically, relative to the engine axis.

This position corresponds approximately to the Top Dead Center (TDC) position of the crankshaft for cylinder 5.

• With the engine removed, the TDC mark can also be seen on the vibration damper and the sealing flange (belt pulley side). The notches - A and B - must align.






- Remove the locking bolt - 1 - from the rear of the cylinder block.






- Look through the threaded hole and check whether the bore - 2 - in the crankshaft aligns with the threaded hole in the block.

Use a mirror to do so, if necessary.

- Rotate the crankshaft slightly, if necessary.

- If the hole/bore align, install the locking pin (T40069) completely into the threaded hole and tighten it to 10 Nm.

• With the engine removed, the TDC mark can also be seen on the vibration damper and sealing flange, belt pulley side. Notches - A and B - must align.






- Check whether the crankshaft can be rotated.

After Disassembly and Assembly Work:

- Remove the locking pin (T40069) and install the locking bolt - 1 - to the rear of the cylinder block.






The rest of the installation follows the reverse of the removal procedures.

Tightening Specifications






To Check/Adjust Valve Timing

- Remove the cylinder head cover. Refer to => [ Cylinder Head Cover ] Cylinder Head Cover.

- Perform the work steps in "Crankshaft, Locking". Refer to => [ Crankshaft, Locking ] Procedures.

• If the threaded holes in the camshafts - arrows - do not align upward, the crankshaft must be rotated one rotation (360°) in engine rotation direction.






In order to be able to precisely check and adjust the valve timing, always note the following:

• Rotate the crankshaft only in engine rotation direction - arrow -. Do not rotate the crankshaft back, not even slightly!






• The crankshaft must not be rotated past the Top Dead Center (TDC) mark. This means the bore - 2 - in the crankshaft must not be above the threaded opening in the cylinder block.






If the crankshaft was rotated past the TDC mark:

- Rotate the crankshaft back 45° in the opposite direction of engine rotation.

- Then rotate the crankshaft again to the TDC position in engine rotation direction.

When the crankshaft is positioned slightly in front of the TDC position (the bore in the crankshaft is 90% visible), the locking pin (T40069) can be installed, although slightly more difficult.