11 34 552 Removing and installing/replacing all valves (N52K)

Special tools required: 

• 11 4 480

Necessary preliminary tasks: 

• Remove cylinder head, see 11 12 100 Removing and installing cylinder head (N52K) .
• Remove intermediate lever, see 11 37 010 Removing and installing/replacing intermediate levers (N52K) .
• Remove eccentric shaft, see 11 37 005 Removing and installing/replacing eccentric shaft (N52K) 
• Remove inlet camshaft, see 11 31 025 Removing and installing/replacing inlet camshaft (N52K) 
• Remove exhaust camshaft, see 11 31 028 Removing and installing/replacing exhaust camshaft (N52K) 
• Remove cam followers, see 11 33 050 Removing and installing/replacing all cam followers (N52K) 
• Remove valve springs, see 11 34 715 Replacing all valve springs (N52K) 
• Remove valve stem seals, see 11 34 560 Replacing all valve stem seals (N52K) 

Arrangement:

1. Valve
2. Valve stem seal with lower spring plate
3. Valve spring
4. Upper spring plate
5. Valve tapers

If the valves are to be reused, they must be placed in neat order in special tool 11 4 480  .

Fig 1: Upper Spring Plate, Valve Tapers And Spring

Courtesy of BMW OF NORTH AMERICA, INC.

Assemble engine.

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