11 12 595 Checking a valve guide for wear (M62, S62)

WARNING: This page is about a different variant/trim than selected.

Valves Removed

To measure tilt clearance, insert new valve so that valve stem end is flush with valve guide.

Mount dial gage and measure tilt clearance.

NOTE: Max. permissible tilt clearance,

Fig 1: Measuring Valve Stem End Clearance Using Dial Gage

Courtesy of BMW OF NORTH AMERICA, INC.

NOTE: If tilt clearance is excessive, valve guide is reamed out and a repair valve with a larger shaft diameter is installed.

If necessary, ream out valve guide,

Fig 2: Identifying Repair Valve With Larger Shaft Diameter

Courtesy of BMW OF NORTH AMERICA, INC.