Valve Timing, Checking

WARNING: This page is about a different car, the 2008 Volkswagen R32. However, it is still accessible from the selected car via links, so may be relevant.

Special tools and workshop equipment required

Camshaft bar T10068A

Test Sequence

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

-- Rotate the crankshaft using the vibration damper bolt in the direction of engine rotation to the Top Dead Center (TDC) cylinder 1 marking -arrow-.

Fig 1: Identifying Crankshaft At Vibration Damper Securing Bolt In Engine At TDC Cyl. 1

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-- It must be possible to install the T10068A into both camshaft grooves.

Fig 2: Identifying Camshaft Bar T10068 A Engage In Shaft Grooves

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If the T10068A cannot be installed:

-- Rotate the crankshaft one turn in direction of engine rotation.

NOTE:

If the T10068A still cannot be installed, turn the crankshaft in direction of engine rotation until approximately 5 mm above the TDC position cylinder 1 (limited via tolerances of drive chains).

-- Verify the installation markings on the camshaft adjuster with the markings on the control housing.

Fig 3: Identifying Marks And Camshaft Adjusters Aligned With Notches On Control Housing

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Marks -A and B- on the camshaft adjusters must align with the notches -arrows- on the control housing -C-. For markings on the control housing, refer to Fig 4.
The distance between tooth -1- and tooth -2- of the camshaft adjusters must be exactly 16 rollers of the camshaft roller chain.

NOTE:

Illustration shows a cover which has been removed.

If the markings do not match:

-- Adjust the valve timing. Refer to VALVE TIMING, ADJUSTING .

If the markings match:

-- Install the cylinder head cover and intake manifold. Refer to CYLINDER HEAD COVER .

Fig 4: Identifying Marks On Control Housing With MPI Engines

Courtesy of VOLKSWAGEN GROUP OF AMERICA, INC.

-A- Flywheel - side view

-B- Vibration damper - side view

Notches -arrows- are reference points for markings on the camshaft adjusters.