Valve: Service and Repair

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

(cylinder head removed)





Preliminary tasks are described in Disassembling and assembling cylinder head Disassembling and Assembling Cylinder Head (M52/S52/M52TU/M54/M56).
Replace valve stem seals Service and Repair.
Remove valves from cylinder head.
If necessary, check valve guide for wear Checking a Valve Guide For Wear (M52/S52/M52TU/M54/M56).
If necessary, ream valve guide Reaming a Valve Guide (M52/S52/M52TU/M54/M56).
If necessary, remachine valve seat Remachining a Valve Seat (M52/S52/M52TU/M54/M56).





Arrangement:
1) - Valve
2) - Valve-stem seal
3) - Lower plate spring
4) - Valve spring
5) - Top plate spring
6) - Valve tapers