Piston Ring, Engine

DIMENSIONS
End Gap
No. 1 Ring
Standard 0.30 - 0.45 mm (0.0118 - 0.0177 inch)
Limit 0.8 mm (0.031 inch)
No. 2
Standard 0.45 - 0.60 mm (0.0177 - 0.0236 inch)
Limit 0.8 mm (0.031 inch)
Oil Ring
Standard 0.10 - 0.35 mm (0.0039 - 0.0138 inch)
Limit 1.0 mm (0.039 inch)
Ring To Ring Groove Clearance
No. 1 Ring
Standard 0.03 - 0.07 mm (0.0012 - 0.0028 inch)
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)
Oil Ring
Standard 0.10 - 0.35 mm (0.0039 - 0.0138 inch)
Limit 1.0 mm (0.039 inch)