Piston Ring, Engine

DIMENSIONS
End Gap Clearance
No. 1 Ring:
Standard 0.20 - 0.35 mm (0.0079 - 0.0138 inch)
Limit 0.8 mm (0.031 inch)
No. 2 Ring:
Standard 0.35 - 0.50 mm (0.0138 - 0.0197 inch)
Limit 0.8 mm (0.031 inch)
Oil Ring:
Standard 0.20 - 0.50 mm (0.0079 - 0.0197 inch)
Limit 1.0 mm (0.039 inch)
Side Clearance
No. 1 Ring:
Standard 0.03 - 0.07 mm (0.0012 - 0.0028)
Limit 0.1 mm (0.004 inch)
No. 2 Ring:
Standard 0.02 - 0.06 mm (0.0008 - 0.0024 inch)
Limit 0.1 mm (0.004 inch)