Valve Guide Seal: Service and Repair
11 34 560 - Replacing all valve stem seals (M52/S52/M52TU/M54/M56)
Special tools required:
- 11 1 200 11 1 200 Drift
- 11 1 480 11 1 480 Pliers
- 11 1 960 11 1 960 Assembly Sleeves
(cylinder head removed)
Preliminary tasks are described in Disassembling and assembling cylinder head Disassembling and Assembling Cylinder Head (M52/S52/M52TU/M54/M56).
Remove all valve springs Service and Repair.
Remove valve stem seal with special tool 11 1 480 11 1 480 Pliers.
Lubricate valve stem with oil and insert valve. Fit special tool 11 1 960 11 1 960 Assembly Sleeves.
Coat new valve stem seal (1) with oil and install.
Press valve stem seal firmly home by hand with special tool 11 1 200 11 1 200 Drift.