11 33 050 Removing and installing or replacing all rocker arms (N54, N54T)

IMPORTANT: Rocker arms (1) are divided into bearing categories.

The tolerance classes are identified in numbers from 1 to 6.

Already used rocker arms (1) may only be reused in the same position.

Classification is not required on the N54 engine. All numbers from 1 to 6 can be optionally installed as a replacement.

Necessary preliminary tasks:

Detach roller cam followers (1) from hydraulic valve clearance compensating element and remove.

Set down roller cam followers in tidy and orderly fashion; if necessary, set down in special tool 11 4 480 .

Installation note:

Before installing exhaust and inlet camshafts, make sure roller cam followers are correctly seated.

Fig 1: Identifying Cam Follower Seat

Courtesy of BMW OF NORTH AMERICA, INC.

Remove hydraulic valve clearance compensating element in direction of arrow.

Installation note:

If the hydraulic valve clearance compensating elements are reused, they must be placed together with the roller cam followers in neat order if necessary in special tool 11 4 480 .

Fig 2: Removing HVCA Element

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Assemble engine.