11 31 034 Removing and installing/replacing right inlet camshaft (N63O1)

Special tools required: 

• 11 4 480

  (cylinder bank 1 to 4) 

Necessary preliminary work: 

• Remove right CYLINDER HEAD COVER .
• Check TIMING .
• Remove RIGHT INLET ADJUSTMENT UNIT .
• Remove INTERMEDIATE LEVER  on right side.

Release screws of camshaft bearings in 1/2 revolutions.

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

Remove intake camshaft "E 14".

Fig 1: Identifying Camshaft Bearings And Screws

Courtesy of BMW OF NORTH AMERICA, INC.

Do "not" remove rocker arm (1) on intake side.

Fig 2: Identifying Rocker Arms

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Check plastic plain rectangular compression rings (1) for freedom of movement.

Fig 3: Identifying Plastic Plain Rectangular Compression Rings

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Plastic plain rectangular compression ring: 

Installation note: 

The plastic plain rectangular compression rings are maintenance free and do not have to be replaced.

Insert plastic plain rectangular compression rings (1) into groove of intake camshaft (2) (see arrow in illustration).

Lightly oil plastic plain rectangular compression rings (1) and rotate in direction of arrow until plastic plain rectangular compression rings (1) are positioned on the intake camshaft.

Fig 4: Inserting Plastic Rectangular Compression Ring Into Groove Of Exhaust Camshaft

Courtesy of BMW OF NORTH AMERICA, INC.

Fig 5: Identifying Camshafts Markings

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Insert intake camshaft (1).

Fig 6: Inserting Intake Camshaft

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Attach all bearing caps from (E1 to E5).

Screw all bearing caps.

Tightening torque. 11 31 6AZ .

Fig 7: Identifying Camshaft Bearings And Screws

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Install ALL INTERMEDIATE LEVERS WITH TORSION SPRINGS .

Install INLET ADJUSTMENT UNITS .

Adjust VALVE TIMING .

Assemble engine.