11 12 595 Checking A Valve Guide For Wear (N62)
WARNING: This page is about a different car, the 2005 BMW 645Ci and 2004 BMW 645Ci. However, it is still accessible from the selected car via links, so may be relevant.
(Valve removed)
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, refer to ENGINE - TECHNICAL DATA - 645CI
.