5 Series E61 523i (N52) TOUR
11 12 527
Remachining a valve seat - disassembling
cylinder head (N52)
Special tools required:
•
00 5 380
•
11 9 001
Necessary preliminary tasks:
•
Remove cylinder head.
•
Remove inlet camshaft.
•
Remove exhaust camshaft.
•
Remove all valves.
Place cylinder head on special tool 11 9 001 .
Inset pilot from special tool 00 5 380 5 mm into a valve stem.
Select a suitable valve seat milling cutter (1).
Turn the milling cutter clockwise while applying low pressure.
When the milling operation is finished, perform a further 2 turns
without applying pressure to the cutter.
Important!
If necessary, perform inner and outer seat corrections.
Assemble engine.
RA Remachining a valve seat - disassembling cylinder head (N52)
BMW AG - TIS
05.02.2013 01:24
Issue status (12/2007) Valid only until next DVD is issued
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