11 31 034 Removing and installing/replacing right inlet camshaft (S65)

WARNING: This page is about a different variant/trim than selected.

Necessary preliminary tasks:

Release screws (1).

Tightening torque: 11 12 2AZ .

E Intake camshaft

A Exhaust camshaft.

IMPORTANT: Risk of mix-up with cylinder bank 5-8.
Arrow must point in direction of travel to chain drive.

Installation:

Lubricate all bearing points with engine oil.

Fig 1: Identifying Camshaft Screws

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NOTE: Illustration shows cylinders 5-8.

Release screws (1) from outside inwards in 1/2 turns.

Tightening torque: 11 12 2AZ .

Installation:

Lubricate all bearing points with engine oil.

Fig 2: Identifying Camshaft Screws

Courtesy of BMW OF NORTH AMERICA, INC.

Check plain compression rings for damage and replace if necessary.

The plain compression rings have catches at the joint.

Press plain compression rings apart upwards and downwards and remove towards front.

IMPORTANT: Plain compression rings can break easily.

Fig 3: Removing Plain Compression Rings

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Insert inlet camshaft (1) for cylinders 1 to 4.

Designation (E1) on dihedron points upwards.

Cams on cylinders (1 and 3) point upwards at an angle.

Installation:

Lubricate all bearing points with engine oil.

Fig 4: Positioning Inlet Camshaft Lobes

Courtesy of BMW OF NORTH AMERICA, INC.

Installation:

All bearing shells are assigned to one cylinder.

E and A from (1 to 8), e.g. E 1= inlet side on 1st cylinder.

Arrow (1) must point in direction of travel to chain drive.

Fig 5: E 1= Inlet Side On 1st Cylinder

Courtesy of BMW OF NORTH AMERICA, INC.

Release screws (1) from inside outwards in 1/2 turns.

Tightening torque: 11 12 2AZ .

Installation:

Lubricate all bearing points with engine oil.

Fig 6: Identifying Camshaft Screws

Courtesy of BMW OF NORTH AMERICA, INC.

Adjust valve timing.

Assemble engine.