Camshaft Timing Chains, Removing From Camshafts: Installing

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.

Tightening specifications, refer to CAMSHAFT TIMING CHAIN OVERVIEW , UPPER OIL PAN OVERVIEW .

NOTE:

Replace bolts which have been tightened to torque.

Replace locking bolt O-ring.

CAUTION:

Risk of damaging valves and piston crowns.

If camshafts are rotated, crankshaft may not rest with any piston at TDC.

Drive chain for timing mechanism installed. Refer to TIMING MECHANISM DRIVE CHAIN .

Fig 1: Identifying Crankshaft Holder 3242 Into Hole, Removal/Installation
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Secure crankshaft in TDC position using 3242.

T40070 mounted on both cylinder heads and fastened to 25 Nm -arrows-.

Fig 2: Mounting Camshaft Locating Tool T40070 To Both Cylinder Heads
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NOTE:

Reinstall left camshaft adjuster according to the mark applied during removal.

-- Replace camshaft bolts.

-- Place camshaft timing chain onto drive sprocket and onto camshaft adjusters and loosely thread in the bolts -1 and 2-.

Fig 3: Identifying Bolts On Left Cylinder Head And Removing Both Camshaft Adjusters

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Both camshaft adjusters must be able to still be rotated on camshaft and must not tip.

-- Remove T40071.

-- Reinstall camshaft adjuster on right cylinder head according to the mark applied during removal.

-- Place camshaft timing chain onto drive sprocket and onto camshaft adjusters and loosely thread in the bolts -1 and 2-.

Fig 4: Identifying Bolts On Right Cylinder Head And Removing Both Camshaft Adjusters

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Both camshaft adjusters must be able to still be rotated on camshaft and must not tip.

-- Remove T40071.

-- Position T40079 on intake camshaft adjuster at left cylinder head.

Fig 5: Positioning Adapter T40079 On Intake Camshaft Adjuster At Left Cylinder Head

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-- Position V.A.G 1332 with V.A.G 1332/9 on T40079.

-- Have a second technician pre-tension camshaft adjuster to 40 Nm in direction of -arrow-.

-- Tighten bolts as follows while camshaft adjuster is held under pre-tension:

-- Pre-tighten bolt -1- to intake camshaft to 60 Nm.-- Pre-tighten bolt -2- to exhaust camshaft to 60 Nm.

-- Position T40079 on exhaust camshaft adjuster at right cylinder head.

Fig 6: Positioning Adapter T40079 On Exhaust Camshaft Adjuster At Right Cylinder Head

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-- Position V.A.G 1332 with V.A.G 1332/9 on T40079.

-- Have a second technician pre-tension camshaft adjuster to 40 Nm in direction of -arrow-.

-- Tighten bolts as follows while camshaft adjuster is held under pre-tension:

-- Pre-tighten bolt -1- to intake camshaft to 60 Nm.-- Pre-tighten bolt -2- to exhaust camshaft to 60 Nm.

-- Remove T40079.

Fig 7: Mounting Camshaft Locating Tool T40070 To Both Cylinder Heads

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-- Remove T40070 on both cylinder heads -arrows-.

-- Tighten camshaft adjuster bolts on left cylinder head as follows:

Fig 8: Identifying Camshaft Adjuster Screws On Left Cylinder Head, Removal/Installation

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-- Tighten bolt -1- to intake camshaft to final torque.-- Tighten bolt -2- to exhaust camshaft to final torque.

-- Tighten camshaft adjuster bolts on right cylinder head as follows:

Fig 9: Identifying Bolts For Camshaft Adjuster Using Multipoint Socket T10035

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-- Tighten bolt -1- to intake camshaft to final torque.-- Tighten bolt -2- to exhaust camshaft to final torque.

-- Remove 3242.

Fig 10: Identifying Crankshaft Holder 3242 Into Hole, Removal/Installation

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-- Using T40058 turn crankshaft two complete rotations in direction of engine rotation -arrow- until crankshaft stands at TDC again.

Fig 11: Locating Torque Converter Bolts And Adapter T40058 To Counterhold Crankshaft

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NOTE:

If rotated unintentionally beyond TDC, turn back crankshaft again approximately 30° and set to TDC again.

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

Fig 12: Identifying Threaded Holes In Camshafts Must Face Upward
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-- Mount the T40070 to both cylinder heads and tighten the bolts -arrows- to 25 Nm.

Fig 13: 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.

-- Install 3242 in bore and tighten to 20 Nm.

Fig 14: Identifying Crankshaft Holder 3242

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The 3242 must engage in the locating hole of the crankshaft -1-, otherwise repeat the adjustment.

-- Remove camshaft locating tools on both cylinder heads.

-- Remove 3242.

-- Install TDC mark sealing plug with new seal in upper section of the oil pan.

The rest of the installation is in reverse order of removal, note the following:

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

-- Install cylinder head cover. Refer to LEFT CYLINDER HEAD COVER , right RIGHT CYLINDER HEAD COVER .