11 37 014 Removing and installing/replacing right intermediate lever (N62 to 9/03): Removal

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Removal of intermediate levers is described separately from installation.

Remove servomotor for right eccentric shaft. Refer to 11 37 024 Removing and installing/replacing servomotor for right eccentric shaft (N62) .

Remove ignition coils on cylinder bank 1 to 4.

Remove right cylinder head cover. Refer to 11 12 006 Removing and installing / sealing right cylinder head cover (N62 / N62TU) .

Remove spark plugs on cylinder bank 1 to 4.

Remove inlet and exhaust adjustment unit on right side. Refer to 11 36 048 Removing and installing/replacing inlet and exhaust adjustment units on right side (N62) .

IMPORTANT: The inlet camshaft must first be rotated so that when the bearing bracket is removed the intermediate levers do not slip out and damage the camshaft.

Rotate inlet camshaft in direction of rotation until cam on 1st cylinder is positioned horizontally as shown in illustration.

Fig 1: Rotating Inlet Camshaft

G03289684

Courtesy of BMW OF NORTH AMERICA, INC.

Rotate eccentric shaft at dihedral head as illustrated in order to reduce tension on torsion spring (1).

Fig 2: Rotating Eccentric Shaft At Dihedral Head

G03289685

Courtesy of BMW OF NORTH AMERICA, INC.

Pretension torsion spring (1) with a cable strap (2), feed out from roller (3) and carefully relieve tension.

Rotate eccentric shaft at dihedral head as shown in illustration back to minimum stroke position.

Fig 3: Rotating Eccentric Shaft Back To Minimum Stroke Position

G03289686

Courtesy of BMW OF NORTH AMERICA, INC.

IMPORTANT: Do not mix up the camshaft bearing covers of cylinders 1 to 4 and 5 to 8.

NOTE: Bearing caps of inlet camshaft are marked on cylinder bank 1 to 4 with L E1 to L E5 from inlet side.

Release nuts and remove bearing cap L E1.

Fig 4: Removing Bearing Cap L E1

G03289687

Courtesy of BMW OF NORTH AMERICA, INC.

Release 8 nuts of bearing bracket (1) from outside to inside.

Fig 5: Releasing Nuts Of Bearing Bracket

G03289688

Courtesy of BMW OF NORTH AMERICA, INC.

NOTE: Rocker arms are freely accessible after bearing bracket has been removed.
Do "not" remove rocker arm (1) on inlet side.

Fig 6: Identifying Rocker Arm

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Courtesy of BMW OF NORTH AMERICA, INC.

IMPORTANT: Rockers arms (1) are divided into individual tolerance classes.
The tolerance classes are designated as illustrated with the numbers from 1 to 4.
Used rocker arms (1) may only be reused in the same position.

When replacing rocker arms (1) on inlet side: install rocker arms of the same tolerance class in the same position.

Clamp special tool 11 9 470 as illustrated in a vise.

Fig 7: Clamping Special Tool In Vise

G03289690

Courtesy of BMW OF NORTH AMERICA, INC.

IMPORTANT: Do not tilt bearing bracket (1).

Carefully lift out bearing bracket (1).

Fig 8: Lifting Out Bearing Bracket

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Courtesy of BMW OF NORTH AMERICA, INC.

Place bearing bracket (1) with inlet camshaft and eccentric shaft as illustrated on special tool 11 9 470.

Fig 9: Placing Bearing Bracket On Special Tool

G03289692

Courtesy of BMW OF NORTH AMERICA, INC.

Secure bearing bracket (1) with a nut (special tool 11 9 473).

IMPORTANT: The lower section of the bearing bracket (1) is machined with the cylinder head and must not be mixed up.

NOTE: Lower section of bearing bracket (1) remains on cylinder head.

Fig 10: Identifying Lower Section Of Bearing Bracket

G03289693

Courtesy of BMW OF NORTH AMERICA, INC.

NOTE: The mounting of the bearing bracket described later can only be carried out if the inlet camshaft has not been axially displaced.
Special tools 11 9 472 and 11 9 475 prevent the inlet camshaft from rotating and moving while the intermediate levers are installed.

Fit special tool 11 9 472 and secure with special tool 11 9 475.

Fig 11: Fitting Special Tool

G03289694

Courtesy of BMW OF NORTH AMERICA, INC.

Insert special tool 11 9 474 and initially tighten without play.

Fig 12: Inserting Special Tool

G03289695

Courtesy of BMW OF NORTH AMERICA, INC.

NOTE: Removal of intermediate levers is described on 4th cylinder. The same procedure is applicable to cylinders 1 to 3.

Raise one end of torsion spring (1) with special tool 11 9 480.

Fig 13: Removing Intermediate Lever

G03289696

Courtesy of BMW OF NORTH AMERICA, INC.

Lift out intermediate lever (2) and set down in an orderly fashion.

IMPORTANT: Keep holding torsion spring (1) with special tool 11 9 480.

Attach special tool 11 9 490 to end of torsion spring.

Fig 14: Attaching Special Tool To End Of Torsion Spring

G03289697

Courtesy of BMW OF NORTH AMERICA, INC.

Support end of torsion spring protected with special tool 11 9 490 on inlet camshaft.

IMPORTANT: Intermediate levers (2) are divided into individual tolerance classes.
Only intermediate levers of the same tolerance class may be fitted in a single cylinder head.
The tolerance classes are designated as illustrated with the numbers from 1 to 5.
Used intermediate levers (2) may only be reused in the same position.

Fig 15: Identifying Intermediate Lever

G03289698

Courtesy of BMW OF NORTH AMERICA, INC.

Raise second end of torsion spring (1) with special tool 11 9 480.

Fig 16: Raising Second End Of Torsion Spring

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Courtesy of BMW OF NORTH AMERICA, INC.

Lift out intermediate lever (2) and set down in an orderly fashion.

IMPORTANT: Keep holding torsion spring (1) with special tool 11 9 480.

Attach special tool 11 9 490 to second end of torsion spring.

Fig 17: Attaching Special Tool To Second End Of Torsion Spring

G03289700

Courtesy of BMW OF NORTH AMERICA, INC.

Support end of torsion spring protected with special tool 11 9 490 on inlet camshaft.