11 33 052 Removing and installing/replacing all rocker arms on left side (N63O1)

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Special tools required:

11 4 480
11 4 481
Cylinder bank 2

Cylinder bank 5 to 8

IMPORTANT: Roller cam followers on intake side are divided into bearing classes.
The tolerance classes are marked according to the illustration in numbers from 1 to 5.
Already used roller cam followers may only be reused in the same position.

Separate roller cam followers from hydraulic valve clearance compensating element and remove.

Place all roller cam followers in order in special tool 11 4 481 .

Installation note:

Prior to installation of intermediate levers, ensure proper installation position of roller cam followers.

Necessary preliminary work:

Remove INTERMEDIATE LEVER on left.
Remove left EXHAUST CAMSHAFT .

IMPORTANT: Used rocker arms (1) may only be reused in the same position.
Tolerance classes are not required.

Remove rocker arm (1) and set down in neat order in special tool 11 4 480 .

Install rocker arm (1).

Align all rocker arms (1) (see arrows in illustration).

Fig 1: Positioning Rocker Arm

Courtesy of BMW OF NORTH AMERICA, INC.

Classification of roller cam follower intake.

Standard: Number 3. standard.

Number 2. slow idle.

Number 4. fast idle.

The classification that was installed ex works must be installed before a repair.

Fig 2: Identifying Classification Mark On Intake Roller Cam Follower

Courtesy of BMW OF NORTH AMERICA, INC.

Assemble engine.