B3.9 and B5.9 Series Engines
Valve, Cylinder Head (002-020)
Section 2 - Cylinder Head - Group 02
Inspect for abnormal wear on the heads and stems.
Measure the valve stem diameter.
Valve Stem Diameter
NOTE: If the valve is not within specification, it must be
Check the valve stem tip for flatness.
Inspect for bent valves.