11 34 552 Removing and installing/replacing all valves (N63)

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Special tools required:

11 4 480
11 8 840
11 9 006
11 9 008

See ENGINE - SPECIAL TOOLS (N54, N63) .

Necessary preliminary tasks:

Remove left cylinder head .
Remove right cylinder head .
Remove camshafts .

Mount cylinder head (1) on special tool 11 9 000.

Fig 1: Identifying Cylinder Head On Special Tool

G06178610

Courtesy of BMW OF NORTH AMERICA, INC.

Prepare special tool 11 9 008 on special tool 11 9 006.

Fig 2: Identifying Special Tool (11 9 008 And 11 9 006)

G06178611

Courtesy of BMW OF NORTH AMERICA, INC.

Position special tool 11 9 006 with silicone cushion on cylinder head.

Slide locks (1) in direction of arrow and pretension with eccentric shaft.

Fig 3: Identifying Special Tool With Silicone Cushion

G06178612

Courtesy of BMW OF NORTH AMERICA, INC.

Press down valve spring with special tool 11 8 840.

Fig 4: Pressing Down Valve Spring With Special Tool

G06178613

Courtesy of BMW OF NORTH AMERICA, INC.

Remove valve cotters (1) with a magnet.

Place valve springs and valve cotters on special tool 11 4 480 in a tidy and orderly fashion.

Fig 5: Identifying Valve Cotters And Special Tool

G06178614

Courtesy of BMW OF NORTH AMERICA, INC.

IMPORTANT: Incorrect installation possible.

Incorrect installation will result in valve spring breakage.

Color marking (1) is normally on lower end of valve spring.

Only the diameter is decisive for the correct installation of the valve springs.

Install valve spring so that larger diameter points to spring plate at bottom.

Fig 6: Identifying Valve Spring Diameter

G04740095

Courtesy of BMW OF NORTH AMERICA, INC.

Arrangement:

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

Fig 7: Identifying Valve, Valve Spring And Top Plate Spring

G04740096

Courtesy of BMW OF NORTH AMERICA, INC.

Release special tool 11 9 006 from cylinder head.

Remove all valves and place on special tool 11 4 480 in a tidy and orderly fashion.

Fig 8: Identifying Special Tool (11 9 008 And 11 9 006)

G06178617

Courtesy of BMW OF NORTH AMERICA, INC.

Assemble engine.