S 550 (221.171) V8-5.5L (273.961) (2007)
Piston Ring: Procedures
AR03.10-P-7311-01VA Measure Vertical Clearance of Piston Rings
AR03.10-P-7311-01VA Measure vertical clearance of piston rings
Check values for piston rings
Check values for piston rings
Compression ring side clearance measurement
1
Measure vertical clearance between compression ring and mounting groove in piston with a feeler gauge for the compression ring concerned;
replace compression ring or piston if necessary.
The vertical clearance of the oil scraper ring cannot be measured because of its three part structure. The oil scraper ring must be replaced along
with the compression rings.
AR03.10-P-7311-02VA Measure Piston Ring End Gap
AR03.10-P-7311-02VA Measure piston ring end gap