Crankshaft, Securing

Crankshaft, securing





Special tools, testers and auxiliary items required
^ Torque wrench V.A.G 1331
^ Crankshaft Adapter T03003
^ Locking pin T40069

Secure crankshaft for checking/adjusting valve timing

Work procedure
- Remove noise insulation.
- Remove front section of right front wheel housing liner.





- Attach Crankshaft Adapter T03003 on to bolts of belt pulley.
- Crankshaft Adapter T03003 can only be inserted correctly in one position.
- Rotate crankshaft in direction of engine rotation - arrow - far enough until arrow - A - on Crankshaft Adapter T03003 points downward vertically, relative to engine axis.
- This position corresponds approximately to TDC position of crankshaft at cylinder 5.





- Remove sealing plug - 1 - at cylinder block at rear.
- Look through threaded hole and check whether bore - 2 - in crankshaft aligns with threaded hole.
- Use a mirror to do so.
- Rotate crankshaft slightly if necessary.
- If holes align, install locking pin T40069 completely into threaded hole and tighten it to 10 Nm.





Note:
^ With engine removed, TDC marking can also be seen on belt pulley and sealing flange on belt pulley side. Notches - A - and - B - must align.

- Check whether crankshaft can be rotated.

After disassembly and assembly work:





- Remove locking pin T40069 and install plug - 1 - on cylinder block at rear.

The rest of installation follows reverse of removal procedures.

Tightening torque:

Tightening torque:

Secure crankshaft for checking/adjusting valve timing
- Remove cylinder head cover.
- Perform work steps as for "Secure crankshaft".





Note:
^ If threaded holes in camshafts - arrows - do not stand upward, crankshaft must be rotated one rotation (360°) in direction of engine rotation.

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





^ Turn crankshaft only in direction of engine rotation - arrow -. Do not rotate crankshaft back, not even slightly!





^ Crankshaft must not be rotated out over the TDC marking. This means bore - 2 - in crankshaft must not stand above threaded opening.

If crankshaft was rotated out over TDC marking:
- Rotate crankshaft back 45° in opposite direction of engine rotation.
- Then rotate crankshaft again into TDC position in direction of engine rotation.
- If crankshaft stands just in front of TDC (bore in crankshaft can be seen up to 90%), locking pin T40069 can be installed, but with some stiffness.