11 37 014 Removing And Installing/Replacing Right Intermediate Levers (N62 From 9/03 And N62TU): Notes

WARNING: This page is about a different car, the 2008 BMW Alpina and 2007 BMW Alpina. However, it is still accessible from the selected car via links, so may be relevant.

Special tools required:

11 9 470
11 9 472
11 9 473
11 9 474
11 9 475
11 9 480
11 9 490

(cylinder bank 1 to 4)

Removal of intermediate levers is described separately from installation.

Necessary preliminary tasks:

Remove servomotor for right eccentric shaft . See 11 37 024 REMOVING AND INSTALLING/REPLACING SERVOMOTOR FOR RIGHT ECCENTRIC SHAFT (N62/N62TU) .
Remove ignition coils on cylinder bank 1 to 4
Remove right cylinder head cover . See 11 12 006 REMOVING AND INSTALLING/SEALING RIGHT CYLINDER HEAD COVER (N62/N62TU) .
Remove spark plugs on cylinder bank 1 to 4
Remove right inlet and exhaust adjustment units . See 11 31 034 REMOVING AND INSTALLING/REPLACING RIGHT INLET CAMSHAFT (N62 TO 9/03) .

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: Identifying Camshaft Lobe

Courtesy of BMW OF NORTH AMERICA, INC.

IMPORTANT: Camshaft bearing caps of cylinders 1 to 4 and 5 to 8 must not be mixed up.

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

Fig 2: Identifying Bearing Cap L E1 And Nuts

Courtesy of BMW OF NORTH AMERICA, INC.

Release nuts and remove bearing cap L E1.

Fig 3: Identifying Bearing Bracket Nuts

Courtesy of BMW OF NORTH AMERICA, INC.

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

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

IMPORTANT: Rocker 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 Arms

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 vice.

Fig 5: Identifying Special Tool (11 9 470)

Courtesy of BMW OF NORTH AMERICA, INC.

IMPORTANT: Do not tilt bearing bracket (1).

Carefully lift out bearing bracket (1).

Fig 6: Identifying 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: Identifying Bearing Bracket And Special Tool

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: Identifying Lower Section Of Bearing Bracket

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: Identifying Special Tools (11 9 472) And (11 9 475)

Courtesy of BMW OF NORTH AMERICA, INC.

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

Fig 10: Identifying Special Tool (11 9 474)

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: Identifying Torsion Spring And Intermediate Lever

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: Identifying Torsion Spring With Special Tool

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.

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

Fig 13: Identifying Intermediate Levers

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 .

Fig 14: Identifying Torsion Spring And Intermediate Lever

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: Identifying Special Tools

Courtesy of BMW OF NORTH AMERICA, INC.