Installing the intake camshaft (cylinder head removed)

Clean all the bearing positions (arrows) and coat with motor oil.

Courtesy of BMW OF NORTH AMERICA, INC.
Clean all the bearing positions of the intake camshaft bearing cap (E1) to (E6) and (E) and coat with engine oil.

Courtesy of BMW OF NORTH AMERICA, INC.
Clean all the bearing positions (arrows) of the intake camshaft and coat with motor oil.

Courtesy of BMW OF NORTH AMERICA, INC.
Check the fitting sleeves (1) of the thrust bearing (2) for damage, replace if necessary.

Courtesy of BMW OF NORTH AMERICA, INC.
Check all the roller cam followers (1) of the intake side for correct fit.

Courtesy of BMW OF NORTH AMERICA, INC.
Insert the intake camshaft (1) into the cylinder head in such a way that the mark (2) points up.

Courtesy of BMW OF NORTH AMERICA, INC.

NOTE: RISK OF DAMAGE
Engine damage caused by incorrectly installed bearing shells and bearing brackets.
If the bearing shells and bearing brackets are installed incorrectly, then engine damage can occur.

Always install all bearing shells and bearing brackets in the same position from which they were removed.

Courtesy of BMW OF NORTH AMERICA, INC.

Thread in all intake camshaft bearing caps (E1) to (E6) and intake camshaft bearing cap (E) and position.
Check the tensile strength of the screws (1) for the bearing cap.
The illustration shows the screw with 8.8 tensile strength .

Courtesy of BMW OF NORTH AMERICA, INC.
Check the tensile strength of the screws (1) for the bearing cap.
The illustration shows the screw with 10.9 tensile strength .

Courtesy of BMW OF NORTH AMERICA, INC.

NOTE: TECHNICAL INFORMATION
The camshaft is under tension due to the valve springs. Tighten or loosen each screw on the camshaft bearing caps in the prescribed sequence only by half a turn. Repeat procedure.

Press down the intake camshaft bearing cap and hand-tighten the screws step-by-step in the sequence (1) to (14).
Bring all screws in the sequence (1) to (14) in half turns onto the surface.

Fig 1: Intake Camshaft Bearing Caps Screws Tightening Sequence
Courtesy of BMW OF NORTH AMERICA, INC.
Observe the joining torque.
Tighten all the screws in the sequence (1) to (14).

TIGHTENING TORQUES SPECIFICATION

Intake camshaft to cylinder head
M6 Tensile strength of screw 8.8	Joining torque	9.6 Nm
M6 Tensile strength of screw 8.8	Tightening torque	9.6 Nm
M6 Tensile strength of screw 10.9	Joining torque	11.8 Nm
M6 Tensile strength of screw 10.9	Tightening torque	11.8 Nm