Crankshaft, Locking To Check/Adjust Valve Timing

WARNING: This page is about a different car, the 2014 Volkswagen Beetle and 2013 Volkswagen Beetle. However, it is still accessible from the selected car via links, so may be relevant.

-- Remove the cylinder head cover. Refer to CYLINDER HEAD COVER .

-- Perform the work listed in "Crankshaft, Locking". Refer to CRANKSHAFT, LOCKING .

NOTE:

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

Fig 1: Identifying Threaded Holes

Courtesy of VOLKSWAGEN GROUP OF AMERICA, INC.

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

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

Fig 2: Identifying Crankshaft Turned Only In Direction Of Engine Rotation
Courtesy of VOLKSWAGEN GROUP OF AMERICA, INC.
Crankshaft must not be rotated out over the Top Dead Center (TDC) marking. This means bore -2- in crankshaft must not stand above threaded opening.

Fig 3: Identifying Crankshaft Must Not Be Rotated Out Over TDC Marking
Courtesy of VOLKSWAGEN GROUP OF AMERICA, INC.

If crankshaft was rotated out over the TDC marking:

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

-- Turn the crankshaft again in direction of engine rotation to TDC.

When the crankshaft is positioned slightly in front of the TDC position (hole in crankshaft is 90% visible), the Crankshaft HolderT40069 can be screwed in, although slightly more difficult.