bmw Workshop Repair Guides

BMW Workshop Service and Repair Manuals

7 RA Grinding Cylinder Head Lower Face (N40 _ N45) > < 5 RA Remachining A Valve Seat - Cylinder Head Disassembled (N40_N42_N45_N46)
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11 12 595

Checking a valve guide for wear
(N40/N42/N45/N46)

Necessary preliminary tasks:

Remove valves. 

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:

Max. permissible tilt clearance.

RA  Checking a valve guide for wear (N40/N42/N45/N46)

BMW AG - TIS

18.01.2013  08:42

Issue status (12/2007) Valid only until next DVD is issued

Copyright

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7 RA Grinding Cylinder Head Lower Face (N40 _ N45) > < 5 RA Remachining A Valve Seat - Cylinder Head Disassembled (N40_N42_N45_N46)