560SL (107.048) V8-5.6L (117.967) (1989)
Observe operating instructions of machine tool and adjusting angle.
4
Measure runout on valve seat and height "h" of the valve disk.
If the limit values are reached, renew valve.
5
Machine valve seats. See: Valve Seat/Service and Repair
NOTE: Observe checking valve springs and valve spring preload. See: Valve Spring/Testing and Inspection