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

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

Removal of intermediate levers is described separately from installation.

Remove servomotor for right eccentric shaft.

Remove ignition coils on cylinder bank 1 to 4. See IGNITION COIL .

Remove spark plugs on cylinder bank 1 to 4.

Remove inlet and exhaust adjustment unit on right side.

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

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 2: Removing Bearing Cap L E1

Courtesy of BMW OF NORTH AMERICA, INC.

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

Fig 3: Releasing Nuts Of Bearing Bracket From Outside To Inside

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.

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.

Fig 4: Identifying Rocker Arm Tolerance Classes Numbers

Courtesy of BMW OF NORTH AMERICA, INC.

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 5: Clamping Special Tool 11 9 470 In Vise

Courtesy of BMW OF NORTH AMERICA, INC.

IMPORTANT: Do not tilt bearing bracket (1).

Carefully lift out bearing bracket (1).

Fig 6: Lifting Out Bearing Bracket

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.

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

Fig 7: Placing Bearing Bracket With Inlet Camshaft And Eccentric Shaft On Special Tool 11 9 470

Courtesy of BMW OF NORTH AMERICA, INC.

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 8: Remaining Lower Section Of Bearing Bracket On Cylinder Head

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 9: Fitting Special Tool 11 9 472 And Securing With Special Tool 11 9 475

Courtesy of BMW OF NORTH AMERICA, INC.

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

Fig 10: Inserting Special Tool 11 9 474 And Tightening Without Play

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.

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

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

Fig 11: Raising One End Of Torsion Spring With Special Tool 11 9 480

Courtesy of BMW OF NORTH AMERICA, INC.

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

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

Fig 12: Attaching Special Tool 11 9 490 To End Of Torsion Spring

Courtesy of BMW OF NORTH AMERICA, INC.

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 13: Identifying Intermediate Levers Tolerance Classes Number

Courtesy of BMW OF NORTH AMERICA, INC.

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

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

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

Fig 14: Keeping Hold Torsion Spring With Special Tool 11 9 480

Courtesy of BMW OF NORTH AMERICA, INC.

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

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

Fig 15: Attaching Special Tool 11 9 490 To Second End Of Torsion Spring

Courtesy of BMW OF NORTH AMERICA, INC.