380SL (107.045) V8-3.8L (116.960) (1982)
With cylinder head removed, check valve guides by means of plug gauge in longitudinal and transverse direction.
Valve guides which accept the no-go end with the wear limit (+220) in its entire height (5 mm) must be renewed.
Valve guides which are worn outside on the valve stem seal seat so that the valve stem seal is no longer seated tightly, should also be replaced.
Replacing Valve Guides: