11 34 552 Removing and installing or replacing all valves (N51)

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Special tools required:

11 4 480

Necessary preliminary tasks:

Remove Cylinder Head
Remove Intermediate Lever
Remove Eccentric Shaft
Remove intake camshaft
Remove Exhaust Camshaft11 31 028 Removing and installing/replacing exhaust camshaft (N52K)
Remove Roller Cam Followers
Remove Valve Springs
Remove Valve Stem Seals

Arrangement:

Valve
Valve stem seal with spring plate, bottom
Valve spring
Top plate spring
Valve tapers

If the valves are to be reused, set then down in special tool 11 4 480 in a tidy and orderly fashion

Fig 1: Valve Spring, Upper Spring Plate, Valve Tapers And Valve

Courtesy of BMW OF NORTH AMERICA, INC.

Assemble engine.

Check function of DME; if necessary, readjust uniform mixture distribution.