Crankshaft, Locking to Check/Adjust Valve Timing

Crankshaft, Locking to Check/Adjust 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 the TDC marking:

- Rotate crankshaft back 45° in opposite direction of engine rotation.
- Then rotate crankshaft again into TDC position in direction of engine rotation.
- When the crankshaft is positioned slightly in front of the TDC position (hole in crankshaft is 90% visible), the crankshaft holder T40069 can be screwed in, although slightly more difficult.