11 12 595 Checking A Valve Guide For Wear - Valve Removed (S50/S54)

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Measure tilt clearance.

For measurement, install a new valve in such a way that the end of the valve shaft seals the valve guide.

Mount dial gauge and measure tilt clearance.

Max. permissible tilt clearance, refer to ENGINE - TECHNICAL DATA .

Fig 1: Measuring Tilt Clearance

Courtesy of BMW OF NORTH AMERICA, INC.

CAUTION: Repair valves of larger stem diameters are "not" supplied.

In event of excessive tilt clearance: replace cylinder head.