Camshaft Timing Chain, Removing From Camshafts, Cylinder Bank 1 (Right): Removing

There are required preliminary procedures if the camshaft timing chain should be removed from the camshafts when the engine is installed. Refer to CAMSHAFT TIMING CHAIN, REMOVING FROM CAMSHAFTS .

-- Remove the cylinder bank 1 upper timing chain cover. Refer to UPPER TIMING CHAIN COVERS, REMOVING AND INSTALLING .

-- Remove the upper air duct pipe. Refer to AIR DUCT PIPE, REMOVING AND INSTALLING .

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-- Turn the crankshaft using the Wrench - 21mm :T40263  and Adapter :T40314  , until the recess -1- at the vibration damper aligns with the locating tab -2- at the belt pulley side sealing flange. Do not mind the Bolt - Camshaft Clamp :T40264/3  . (shown on a 3.0L engine).

• The mark -1- or -2- on the camshaft adjusters must align with the corresponding locating tabs -arrows- on the camshaft housing. If necessary turn the crankshaft an additional turn.

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-- Remove the bolts -arrows- and the plugs -1 and 2-.

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-- Tighten the Adapter :T40331/2  on the camshaft housing to 9 Nm.

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• It must be easy to insert the Camshaft Lock :T40331/1  .

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• Do not use a hammer to install the camshaft positioning tool.

-- Insert the prepared Camshaft Positioning Tool :T40331/1  all the way in the camshafts. If necessary slightly turn the crankshaft.

• The Camshaft Positioning Tool :T40331/4  engages as shown in the flattened position -1- on the intake camshaft.
• The Camshaft Positioning Tool :T40331/5  engages as shown in the upper asymmetrical groove -2- on the exhaust camshaft.

-- Tighten the bolts -arrows- to 9 Nm.

TIP:

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The Counterholder :T90001  can only be inserted in one position for this the notch -1- and the mark -2- on the camshaft adjuster must align to each other.

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-- To counterhold, position the Socket :VAS 261 001  on the corresponding camshaft adjuster using the Counterholder :T90001  and loosen the control valve -1- with the Socket E24 :T90000  .

-- For reinstallation mark the camshaft adjuster to the camshafts using paint.

• The notch -1- on the vibration damper almost perfectly aligns to the locating tab -2- on the belt pulley side sealing flange.

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Procedure, if the engine is NOT removed due to preliminary work.

-- Install the Camshaft Locating Tool :T40264/3  at the vibration damper opening all the way by hand into the belt pulley side sealing flange. If necessary, move the crankshaft back and forth slightly to center the bolt.

Procedure, if the engine is removed due to preliminary work.

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-- Remove the plug if it is still installed.

-- Install the Crankshaft Locking Pin :T40069  in the hole and tighten to 20 Nm. If necessary push the crankshaft slightly back and forth.

Continuation:

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-- Push back the pistons of the chain tensioner -2- using a screwdriver -1- all the way back -arrow- and lock the chain tensioner using the Locking Pins :T03006  .

TIP:

The piston is lubricated with oil and can only be pushed back slowly by applying constant pressure.

-- Remove the control valves -1 and 2- and remove both camshaft adjusters.

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