11 34 552 Removing and installing or replacing all valves (M52 / S52 / M52TU / M54 / M56)
WARNING: This page is about a different car, the 2003 BMW 525i, 2002 BMW 525i, and 2001 BMW 525i. 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. Refer to 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. Refer to 11 12 595 Checking a valve guide for wear (M52 / S52 / M52TU / M54 / M56) .
If necessary, ream valve guide. Refer to 11 12 600 REAMING A VALVE GUIDE (M52 / S52 / M52TU / M54 / M56) .
If necessary, remachine valve seat. Refer to 11 12 527 REMACHINING A VALVE SEAT (M52 / S52 / M52TU / M54 / M56) .
Arrangement:
- Valve
- Valve-stem seal
- Lower plate spring
- Valve spring
- Top plate spring
- Valve tapers