11 31 034 Removing and installing/replacing right inlet camshaft (N63)

Special tools required: 

• 11 4 480

  (cylinder bank 1 to 4) 

Necessary preliminary tasks: 

• Remove right CYLINDER HEAD COVER .
• Check TIMING .
• Remove RIGHT INLET ADJUSTMENT UNIT .

Rotate right inlet camshaft (2) at dihedron with a fork wrench (1) into a suitable position.

Fig 1: Rotating Right Inlet Camshaft At Dihedron With Fork Wrench

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Release bolts of camshaft bearings in sequence (10 to 1) in 1/2 turns.

Set down all bearing caps in a tidy and orderly fashion on special tool 11 4 480 .

Intake camshaft

Fig 2: Right Intake Camshaft Bearing Cap Bolts Tightening/Loosening Sequence (N63)

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Fig 3: Identifying Rocker Arms

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If necessary, replace plain compression rings (1).

Press plain rectangular compression ring (1) on one side into groove, pull up on other side and unhook latch mechanism.

Carefully pull plain rectangular compression ring (1) apart and remove towards front.

Ends of plain rectangular compression rings (1) point upwards.

Make sure plain rectangular compression rings (1) are engaged at ends.

Fig 4: Locating Plain Rectangular Compression Ring

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Fig 5: Identifying Intake Camshaft Of Cylinder Bank

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Align all rocker arms (1) straight.

Fig 6: Identifying Rocker Arms

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Coat all bearing positions with engine oil.

Fig 7: Locating Bearing Positions

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Insert intake camshaft.

Insert inlet camshaft (1) so that cams point to side at cylinder 1 as shown in picture.

Fig 8: Inserting Intake Camshaft

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All bearing caps are marked with letters and numbers:

Fig 9: Identifying Bearing Caps Mark

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L = Cylinder bank 1-4.

R= Cylinder bank 5-8.

E = Intake side

A = Exhaust side

1 = designation, bearing point, from 1 to 5

Insert all bolts.

Tighten down bolts in sequence (1 to 10) in 1/2 turns.

Tightening torque: 11 31 6 AZ .

Tightening torque: 11 31 7 AZ .

Fig 10: Right Intake Camshaft Bearing Cap Bolts Tightening/Loosening Sequence (N63)

Courtesy of BMW OF NORTH AMERICA, INC.

Install INLET ADJUSTMENT UNITS .

Adjust VALVE TIMING .

Assemble engine.