Crankshaft, Locking to Check/Adjust Valve Timing

Crankshaft, Locking to Check/Adjust Valve Timing

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

- Perform the same work steps as for "Crankshaft, Locking". Refer to => [ Crankshaft, Locking ] Crankshaft, Locking.

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





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

• Turn the crankshaft only in the direction of engine rotation - 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 rest above the threaded opening.





If the crankshaft was rotated past the TDC marking:

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

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

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