11 31 574 Adjusting camshaft timing on right side (S63T 0)

Special tools required: 

• 2 249 117
• 2 249 137
• 2 249 140
• 11 9 190
• 11 8 570
• 11 4 350
• 00 9 120

(cylinder bank 1 to 4) 

Necessary preliminary tasks: 

• Remove RIGHT-HAND GEAR CASE COVER
• CHECK CAMSHAFT TIMING ON RIGHT SIDE .

Get set of special tools 2 249 117 ready for securing camshafts.

Fig 1: Identifying Special Tools (2 249 117)

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Position special tool 2 249 137 on intake camshaft.

Position exhaust camshaft with special tool 2 249 140 and attach to special tool 2 249 137 .

Fig 2: Checking Timing Adjustment Of Camshaft

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Release central bolts (1 and 2) of intake and exhaust camshaft adjusters.

Installation note: 

Replace central bolts after releasing.

Fig 3: Identifying Central Bolts Of Intake And Exhaust Camshaft Adjusters

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Installation note: 

Coat contact surface of new central bolt (1) with copper paste.

Fig 4: Coating Contact Face Of New Central Bolt With Copper Paste

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Insert central bolts (1 and 2).

Fig 5: Identifying Central Bolts

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Remove special tool 11 9 190 .

Fig 6: Turning Engine To 150° Crankshaft Position Before TDC Firing Position Of Cylinder 1

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Position engine with special tool 11 9 190 in front of special tool 11 8 570 as shown in graphic.

Fig 7: Positioning Special Tools

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Installation note: 

The tightening sequence begins with the exhaust camshaft.

Insert central bolt (1) of exhaust camshaft with special tool 11 4 350 .

Jointing torque 5 Nm. 

Fig 8: Inserting Central Bolt Of Exhaust Camshaft Using Special Tool (11 4 350)

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Insert central bolt (1) of intake camshaft with special tool 11 4 350 .

Jointing torque 5 Nm. 

Fig 9: Inserting Central Bolt Of Intake Camshaft Using Special Tool (11 4 350)

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Remove special tool 11 9 190 .

Fig 10: Positioning Special Tools

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Turn the engine at the central bolt further until the special tool 11 9 190 can be positioned in the gear case cover.

The engine is now in the 150° crankshaft position before the TDC firing position of cylinder 1.

Fig 11: Turning Engine To 150° Crankshaft Position Before TDC Firing Position Of Cylinder 1

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Installation note: 

Tighten central bolts beginning with the exhaust camshaft.

Insert central bolt (1) of exhaust camshaft with torque.

Tightening torque of 30 Nm 

Fig 12: Tightening Central Bolts Of Exhaust Camshaft

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Insert central bolt (1) of intake camshaft with torque.

Tightening torque of 30 Nm 

Fig 13: Tightening Central Bolts Of Intake Camshaft

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Insert central bolt (1) of exhaust camshaft with special tool 00 9 120 .

TORSION ANGLE ADJUSTMENT90° 

Fig 14: Inserting Central Bolt Of Exhaust Camshaft Using Special Tool (00 9 120)

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Insert central bolt (1) of intake camshaft with special tool 00 9 120 .

TORSION ANGLE ADJUSTMENT90° 

Remove special tool 2 249 117 .

Fig 15: Inserting Central Bolt Of Intake Camshaft Using Special Tool (00 9 120)

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Remove special tools 11 9 190 and 11 8 570 .

Crank engine at central bolt twice in direction of engine rotation until engine returns to 150° before cylinder no. 1 firing TDC position. 

Secure vibration damper with special tools 11 8 570 and 11 9 190 in the 150° TDC firing position, cylinder 1. 

Fig 16: Turning Engine To 150° Crankshaft Position Before TDC Firing Position Of Cylinder 1

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Fit special tool 2 249 137 on intake camshaft and check timing adjustment.

Fig 17: Checking Timing Adjustment - Intake Camshaft

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Place special tool 2 249 140 on the exhaust camshaft and check timing adjustment.

Fig 18: Checking Timing Adjustment Of Camshaft

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Remove all special tools.

Assemble engine.