S 600 Sedan (140.057) V12-6.0L (120.982) (1996)
Valve Seat: Service and Repair
PRECEDING WORK
Valve guides checked
OVERVIEW
Valve seats:
Machine.
Note
Pay attention to operating instructions of tool manufacturer.
Use SERD1 form cuffing tool number 41196.
Use Hunger cutting tool number 23m or 24m.
Dimensions:
Maintain as specified in table
Leak tightness with valve installed:
Check
Valve seat width (b):
Measure.
Note
Correct valve seat width (b) with correction tools (Hunger) 23m and 24m, if necessary (angle a and P).
Valves:
Insert and measure distance from valve stem end to base of camshaft bearing.
DATA