Camshaft Timing Chains, Removing From Camshafts: Removing

WARNING: This page is about a different car, the 2010 Audi Q7, 2009 Audi Q7, 2008 Audi Q7, and 2007 Audi Q7. However, it is still accessible from the selected car via links, so may be relevant.

NOTE:

According to the following description, the timing chains for camshafts remain on engine.

-- Remove left and right timing chain covers. Refer to LEFT AND RIGHT TIMING CHAIN COVERS .

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

-- Insert the T40058 guide pins as follows:

Fig 1: Inserting T40058 Guide Pin

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Small diameter -arrow 1- points to engine.
Large diameter -arrow 2- points to socket.

-- Using T40058, rotate crankshaft in direction of engine rotation -arrow- to Top Dead Center (TDC).

Fig 2: Locating Torque Converter Bolts And Adapter T40058 To Counterhold Crankshaft

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The threaded holes -arrows- in the camshafts must face upward.

Fig 3: Identifying Threaded Holes In Camshafts Must Face Upward
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-- Mount the T40070 on both cylinder heads and tighten the bolts -arrows- to 25 Nm.

Fig 4: Mounting Camshaft Locating Tool T40070 To Both Cylinder Heads

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The T40070 is correctly positioned when the holes for the cylinder head bolts remain free.

-- Remove locking bolt -arrow- from upper section of the oil pan.

Fig 5: Identifying Locking Bolt Of Upper Part Of Oil Pan

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-- Screw 3242 into hole to 20 Nm, if necessary rotate crankshaft very slightly back and forth to completely center the holder.

Fig 6: Identifying Crankshaft Holder 3242

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-- Press left camshaft timing chain tensioner glide track inward with a screwdriver -1- as far as stop and secure chain tensioner with T40071.

Fig 7: Pressing Left Camshaft Timing Chain Tensioner Glide Track Inward And Securing Chain Tensioner With Locking Pin T40071

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NOTE:

The toothed belt tensioner is lubricated with oil and should only be compressed slowly by applying constant pressure.

-- Press right camshaft timing chain tensioner glide track inward with a screwdriver -1- as far as stop and secure chain tensioner with T40071.

Fig 8: Pressing Right Camshaft Timing Chain Tensioner Glide Track Inward And Securing Chain Tensioner With Locking Pin T40071

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NOTE:

The toothed belt tensioner is lubricated with oil and should only be compressed slowly by applying constant pressure.

-- For re-installation, identify installation location of camshaft adjuster with paint.

Fig 9: Identifying Bolts On Left Cylinder Head And Removing Both Camshaft Adjusters

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CAUTION:

The engine could be destroyed.

To prevent small parts from accidentally entering the engine through the opening in the timing chain compartment, cover the opening with a clean cloth.

-- Remove bolts -1 and 2- on left cylinder head and remove both camshaft adjusters.

-- For re-installation, identify installation location of camshaft adjuster with paint.

Fig 10: Identifying Bolts On Right Cylinder Head And Removing Both Camshaft Adjusters

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-- Remove bolts -1 and 2- on right cylinder head and remove both camshaft adjusters.