Camshaft timing chains, removing from camshafts: Installing

WARNING: This page is about a different car, the 2008 Audi RS 4 and 2007 Audi RS 4. However, it is still accessible from the selected car via links, so may be relevant.

NOTE:

Replace bolts which have been tightened to torque.

CAUTION: When turning camshaft, crankshaft must not be at TDC for any cylinder. Valves and/or pistons may be damaged.

Fig 1: Removing/Installing Drain Plug From Upper Section Of Oil Pan

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Drive chain for timing mechanism installed → Drive chain for timing mechanism, removing and installing .
Secure crankshaft in TDC position using crankshaft holder 3242.

Fig 2: Removing/Installing Camshaft Locators T40070 On Both Cylinder Heads

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Camshaft locating tool T40070 mounted on both cylinder heads and tightened to 25 Nm.

NOTE:

The chain tensioner is removed in the following illustration.

Fig 3: Releasing Chain Tensioner Glide Track For Camshaft Timing Chain

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Completely release chain tensioner glide track for camshaft timing chain - arrow - by laying timing chain slightly to side.

The chain tensioner piston - 1 - must be driven out completely, thereby releasing the retainer.

NOTE:

If the tensioning element is to be removed from the chain tensioner, observe the installed position: Hole in housing floor faces toward chain tensioner, piston faces toward tensioning rail.

Fig 4: Pressing Guide Rail Of Left/Right Camshaft Timing Chain Inward Up To Stop And Secure Chain Tensioner With Securing Pin T40071

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Press guide rail of the left and right camshaft timing chain inward - arrow - up to stop and secure chain tensioner with securing pin T40071.

NOTE:

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

Replace camshaft bolts.

Fig 5: Removing/Installing Camshaft Adjuster Screws On Left Cylinder Head

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

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

Remove Locking Pin T40071.

NOTE:

Reinstall right camshaft adjuster according to mark applied during removal.

Replace camshaft bolts.

Fig 6: Removing/Installing Camshaft Adjuster Screws On Right Cylinder Head

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

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

Remove Locking Pin T40071.

NOTE:

A 2nd technician is needed for further work.

Fig 7: Positioning Adapter T40079 On Intake Camshaft Adjuster At Left Cylinder Head

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Position Adapter T40079 on intake camshaft adjuster at left cylinder head.
Position Torque Wrench V.A.G 1332 with Open Ring Spanner Insert V.A.G 1332/9 on Adapter T40079.
Pre-tension camshaft adjuster to 40 Nm in direction of - arrow - and hold tension.
Tighten bolts - 1 - on exhaust camshaft simultaneously to initial torque.

Torque specification: 60 Nm.

Continue holding pretension on exhaust camshaft and pre-torque bolt - 2 - on exhaust camshaft.

Torque specification: 60 Nm.

Fig 8: Positioning Adapter T40079 On Exhaust Camshaft Adjuster At Right Cylinder Head

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Position Adapter T40079 on exhaust camshaft adjuster at right cylinder head.
Position Torque Wrench V.A.G 1332 with Open Ring Spanner Insert V.A.G 1332/9 on Adapter T40079.
Pretension camshaft adjuster to 40 Nm in direction of - arrow - and hold tension.
Tighten bolt - 1 - on intake camshaft simultaneously to initial torque.

Torque specification: 60 Nm.

Continue holding pretension on exhaust camshaft and pre-torque bolt - 2 - on exhaust camshaft.

Torque specification: 60 Nm.

Remove Adapter T40079.

Fig 9: Removing/Installing Camshaft Locators T40070 On Both Cylinder Heads

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Remove camshaft locators T40070 on both cylinder heads.

Fig 10: Removing/Installing Camshaft Adjuster Screws On Left Cylinder Head

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First tighten camshaft bolt - 1 - and then camshaft bolt - 2 - on left cylinder head to final torque.

Torque specification: 80 Nm plus an additional 90 ° ( ¹ /₄ turn).

Fig 11: Removing/Installing Camshaft Adjuster Screws On Right Cylinder Head

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First tighten camshaft bolt - 1 - and then camshaft bolt - 2 - on right cylinder head to final torque.

Torque specification: 80 Nm plus an additional 90 ° ( ¹ /₄ turn).

Fig 12: Removing/Installing Drain Plug From Upper Section Of Oil Pan

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Remove crankshaft holder 3242.

Fig 13: Using Socket T40058 To Rotate Crankshaft To TDC

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

NOTE:

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

Fig 14: Identifying Threaded Holes In Camshafts Must Face Upward

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

Fig 15: Removing/Installing Camshaft Locators T40070 On Both Cylinder Heads

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Mount camshaft locating tools T40070 to both cylinder heads and tighten bolts - arrows - to 25 Nm.

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

Fig 16: Removing/Installing Drain Plug From Upper Section Of Oil Pan

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Install Crankshaft Holder 3242 in bore and tighten to 20 Nm.

The Crankshaft Holder 3242 must engage in locating hole of crankshaft, otherwise repeat adjustment.

Remove camshaft locating tools on both cylinder heads.
Remove crankshaft holder 3242.
Install sealing plug of TDC-marking with new sealing ring into upper section of oil pan.

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

Install left and right timing chain covers → Left and right timing chain covers, removing and installing .
Install cylinder head cover: Left → Left cylinder head cover, removing and installing , right → Right cylinder head cover, removing and installing .
Install engine → Engine, installing .

Torque specifications

Component	Nm
Camshaft bolts	80 + 90 ° ¹⁾²⁾
Sealing plug in upper section of oil pan	35 ³⁾
¹⁾ Replace bolts. ²⁾ 90 ° corresponds to a quarter turn. ³⁾ Install with new gasket.

Component

Camshaft bolts

80 + 90 ° ¹⁾²⁾

Sealing plug in upper section of oil pan

35 ³⁾

¹⁾ Replace bolts.
²⁾ 90 ° corresponds to a quarter turn.

³⁾ Install with new gasket.