Camshaft Timing Chain, Removing From Camshafts, Cylinder Bank 2 (Left): Installing

• The crankshaft is locked using the Locking Pin:T10492  or Crankshaft Locking Pin:T40069  at "TDC" point.
• The Camshaft Positioning Tool :T40331/1  is tightened on the camshaft housing to 9 Nm.
• Replace the friction disk (diamond discs) after removal.

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• The marks -1 and 2- on the camshaft adjusters must align with the corresponding locating tabs -arrows- on the camshaft housing.

-- Bring the camshaft adjuster with the camshaft timing chain positioned in the previously described installation position at the same time pay attention to the applied markings when removing.

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-- Lubricate the control valves -1 and 2- on the threads and bolt head support and install all the way but do not tighten.

• Both camshaft adjusters must be able to be turned on the camshaft.

-- Remove the Locking Pins:T03006  .

• The help of a second technician is necessary for the following step.

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-- Have a second technician tension the Electronic Torque Wrench 3-60Nm:VAS 6583  with insertion adapter Hazet 6423C or Stahlwille 7370/10 with Torque Wrench Insert - Ring Tool Attachment AF41 :VAS 261 001  and Counterholder: T90001  on the intake camshaft adjuster to 26 Nm counter-clockwise -arrow- and hold.

• Protection torque without using the insertion adapter Hazet 6423C/Stahlwille 7370/10 is 30 Nm.

-- Tighten the control valves with Socket E24:T90000  as follows while the camshaft adjuster is still being held under tension:

• Control valve -2- on the exhaust camshaft 30 Nm.
• Control valve -1- on the intake camshaft 30 Nm.

Valve Timing, Checking

-- Remove the Camshaft Positioning Tool:T40331/1  .

-- Remove the Locking Pin:T10492  or Crankshaft Locking Pin:T40069  .

-- Using the Wrench - 21mm:T40263  and Adapter:T40314  , turn the crankshaft two turns -arrow- until the vibration damper is back at "TDC".

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• The marks -1 and 2- on the camshaft adjusters must align with the corresponding locating tabs -arrows- on the camshaft housing.

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Procedures, where the engine is NOT removed:

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-- Insert the Locking Pin:T10492  on the groove -1- in the vibration damper all the way in the hole -arrow- in the belt pulley side sealing flange. If necessary push the crankshaft slightly back and forth.

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

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-- 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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• The help of a second technician is necessary for the following step.

-- Have a second technician tension the Electronic Torque Wrench 3-60Nm:VAS 6583  with insertion adapter Hazet 6423C with Torque Wrench Insert - Ring Tool Attachment AF41 :VAS 261 001  and Counterholder: T90001  on the intake camshaft adjuster to 26 Nm counter-clockwise -arrow- and hold.

• Protection torque without using the insertion adapter Hazet 6423C/Stahlwille 7370/10 is 30 Nm.

• 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 camshaft.

• The Camshaft Positioning Tool :T40331/6  engages as shown in the flattened section -2- on the intake camshaft.
• The Camshaft Positioning Tool :T40331/7  engages as shown in the flattened section -1- on the exhaust camshaft.

If the Camshaft Positioning Tool :T40331/1  CANNOT be inserted:

-- Remove the Locking Pin:T10492  or Crankshaft Locking Pin:T40069  .

-- Insert the prepared Camshaft Positioning Tool :T40331/1  all the way in the camshafts as previously described. For this turn the crankshaft slightly.

-- Loosen the control valves -1 and 2- a half a turn using the Socket E24 :T90000  .

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Procedures, where the engine is NOT removed:

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-- Insert the Locking Pin:T10492  on the groove -1- in the vibration damper all the way in the hole -arrow- in the belt pulley side sealing flange. If necessary push the crankshaft slightly back and forth.

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

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

Continuation:

-- Repeat the adjustment. Refer to Installing .

If the Camshaft Positioning Tool :T40331/1  can be inserted:

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-- Remove the Locking Pin:T10492  or Crankshaft Locking Pin:T40069  .

-- Remove the Camshaft Positioning Tool :T40331/1  .

-- Position the Counterholder:T90001  and Counterholder:T90002  on the intake camshaft adjuster.

-- Support the counterholder on the exhaust camshaft control valve -2-. If necessary slightly turn the crankshaft.

-- Turn the control valve -1- a 35° additional turn using the Socket E24 :T90000  .

-- Position the Counterholder:T90001  and Counterholder:T90002  on the exhaust camshaft adjuster.

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-- Support the counterholder on the intake camshaft control valve -1-. If necessary slightly turn the crankshaft.

-- Turn the control valve -2- a 35° additional turn using theSocket E24 :T90000  .

-- Install the vacuum pump. Refer to VACUUM PUMP, REMOVING AND INSTALLING (4M) , VACUUM PUMP, REMOVING AND INSTALLING (4MN) .

-- Install the cylinder bank 2 upper timing chain cover. Refer to UPPER TIMING CHAIN COVERS, REMOVING AND INSTALLING .

Additional procedures. Refer to CAMSHAFT TIMING CHAIN, REMOVING FROM CAMSHAFTS .