5 Series E61 523i (N52) TOUR
11 12 595
Checking a valve guide for wear (N52)
Necessary preliminary tasks:
•
Remove all valve springs.
To measure tilt clearance, install a new valve so that end of valve
stem is flush with valve guide.
Attach dial gauge and measure tilt clearance.
Note:
See illustration.
Max. permissible tilt clearance 0.5 mm .
Is the valve guide is outside the tolerance, the cylinder head must
be replaced.
Assemble engine.
RA Checking a valve guide for wear (N52)
BMW AG - TIS
05.02.2013 01:25
Issue status (12/2007) Valid only until next DVD is issued
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