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REMOVING AND INSTALLING, SEALING OR REPLACING OIL SUMP (N52K)
IMPORTANT: Aluminium-magnesium materials.
No steel screws/bolts may be used due to the threat of electrochemical
corrosion.
A magnesium crankcase requires aluminium screws/bolts exclusively.
Aluminium screws/bolts must be replaced each
REMOVING AND INSTALLING/REPLACING ALL VALVES (N62) (CYLINDER HEAD
REMOVED)
Preliminary tasks are described in DISASSEMBLING AND ASSEMBLING CYLINDER
HEAD.
Remove valve springs.
Remove valve stem seals.
Remove valves from cylinder head.
Installation:
If necessary, check valve guide for wear.
If ne