11 34 552 Removing and installing or replacing all valves (M52 / S52 / M52TU / M54 / M56)

WARNING: This page is about a different car, the 2005 BMW Z4, 2004 BMW Z4, and 2003 BMW Z4. However, it is still accessible from the selected car via links, so may be relevant.

(cylinder head removed)

Preliminary tasks are described in Disassembling and assembling cylinder head .

Replace valve stem seals . See 11 34 560 Replacing All Valve Stem Seals (M52 / S52 / M52TU / M54 / M56) .

Remove valves from cylinder head.

If necessary, check valve guide for wear .

If necessary, ream valve guide .

If necessary, remachine valve seat .

Arrangement:

Fig 1: Identifying Valve Components

Courtesy of BMW OF NORTH AMERICA, INC.

Valve
Valve-stem seal
Lower plate spring
Valve spring
Top plate spring
Valve tapers