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11 31 573 Adjusting Camshaft Timing On Left Side (N63O1)

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Special Tools Required: 

(Cylinder Bank 5 To 8) 

Necessary Preliminary Tasks: 

Get Set of Special Tools 2 249 117 Ready for Securing Camshafts.

Fig 1: Identifying Set of Special Tools 2 249 117 for Securing Camshafts
G09874119Courtesy of BMW OF NORTH AMERICA, INC.

Position Special Tool 2 249 144 On Intake Camshaft.

Position Exhaust Camshaft with Special Tool 2 249 159 and Attach To Special Tool 2 249 144 .

Fig 2: Positioning Special Tools On Camshafts
G09874120Courtesy of BMW OF NORTH AMERICA, INC.
IMPORTANT: Mount Special Tool 2 249 117 .

Release Central Bolts (1 and 2) of Intake Adjuster and Exhaust Camshaft Adjuster.

Installation Note: 

Replace Central Bolts After Releasing.

Fig 3: Identifying Central Bolts of Intake and Exhaust Camshaft Adjuster
G09874121Courtesy of BMW OF NORTH AMERICA, INC.

Installation Note: 

Coat Contact Surface of New Central Bolt (1) with 4.4 Copper Paste.

Fig 4: Checking Central Bolt Head To See If Required Grease Is Present
G09874122Courtesy of BMW OF NORTH AMERICA, INC.

Insert Central Bolt (1 and 2).

IMPORTANT: Loosen The Central Bolts (1 and 2) By Maximum 40°.
Fig 5: Identifying Central Bolts
G09874123Courtesy of BMW OF NORTH AMERICA, INC.
IMPORTANT: Crank Engine Back At Central Bolt Through 8°.

Position Engine with Special Tool 11 9 190 In Front of Special Tool 11 8 570 As Shown In Graphic.

Fig 6: Positioning Engine Using Special Tool 11 9 190 In Front of Special Tool 11 8 570
G09874124Courtesy of BMW OF NORTH AMERICA, INC.

Installation Note: 

Tighten The Central Bolt (1) Beginning with the Intake Camshaft.

Insert Central Bolt (1) of Intake Camshaft with Special Tool 11 4 350 .

Joining Torque 5 Nm  .

Fig 7: Inserting Central Bolt of Intake Camshaft Using Special Tool 11 4 350
G09874125Courtesy of BMW OF NORTH AMERICA, INC.

Insert Central Bolt (1) of Exhaust Camshaft with Special Tool 11 4 350 .

Joining Torque 5 Nm  .

Fig 8: Inserting Central Bolt of Exhaust Camshaft Using Special Tool 11 4 350
G09874126Courtesy of BMW OF NORTH AMERICA, INC.

Remove Special Tool 11 9 190 .

Fig 9: Positioning Engine Using Special Tool 11 9 190 In Front of Special Tool 11 8 570
G09874127Courtesy of BMW OF NORTH AMERICA, INC.

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 10: Turning Engine At Central Bolt and Positioning Special Tool 11 9 190 In Gear Case Cover
G09874128Courtesy of BMW OF NORTH AMERICA, INC.

Installation Note: 

Tighten The Central Bolt (1) Beginning with the Intake Camshaft.

Insert Central Bolt (1) of Intake Camshaft with Torque.

Tightening torque of 30 Nm 

Fig 11: Inserting Central Bolt of Intake Camshaft
G09874129Courtesy of BMW OF NORTH AMERICA, INC.

Insert Central Bolt (1) of Exhaust Camshaft with Torque.

Tightening torque of 30 Nm 

Fig 12: Inserting Central Bolt of Exhaust Camshaft
G09874130Courtesy of BMW OF NORTH AMERICA, INC.

Insert Central Bolt (1) of Intake Camshaft with Special Tool 00 9 120 .

TORSION ANGLE ADJUSTMENT90°  .

Fig 13: Inserting Central Bolt of Intake Camshaft Using Special Tool 00 9 120
G09874131Courtesy of BMW OF NORTH AMERICA, INC.

Insert Central Bolt (1) of Exhaust Camshaft with Special Tool 00 9 120 .

TORSION ANGLE ADJUSTMENT90° 

Checking The Timing: Remove Special Tool 2 249 117 .

Fig 14: Inserting Central Bolt of Exhaust Camshaft Using Special Tool 00 9 120
G09874132Courtesy of BMW OF NORTH AMERICA, INC.

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 15: Turning Engine At Central Bolt and Positioning Special Tool 11 9 190 In Gear Case Cover
G09874133Courtesy of BMW OF NORTH AMERICA, INC.

Fit Special Tool 2 249 144 On Intake Camshaft and Check Timing Adjustment.

NOTE: Timing Is Correctly Adjusted When Special Tool 2 249 144 Rests Without A Gap On Cylinder Head.
Fig 16: Fitting Special Tool 2 249 144 On Intake Camshaft and Checking Timing Adjustment
G09874134Courtesy of BMW OF NORTH AMERICA, INC.

Place Special Tool 2 249 159 On The Exhaust Camshaft and Check Timing Adjustment.

NOTE: Timing Is Correctly Adjusted When Special Tool 2 249 159 Rests Without A Gap On Special Tool 2 249 144 .
Fig 17: Positioning Special Tools On Camshafts
G09874135Courtesy of BMW OF NORTH AMERICA, INC.

Remove All Special Tools.

Assemble Engine.