Piston Ring, Engine

Piston Ring
Side clearance
Top
Standard 0.045 - 0.080 mm (0.0018 - 0.0031 inch)
Limit 0.11 mm (0.0043 inch)
2nd
Standard 0.030 - 0.070 mm (0.0012 - 0.0028 inch)
Limit 0.10 mm (0.0039 inch)
Oil ring
Standard 0.065 - 0.135 mm (0.0026 - 0.0053 inch)
End gap
Top
Standard 0.22 - 0.32 mm (0.0087 - 0.0126 inch)
Limit 0.56 mm (0.0220 inch)
2nd
Standard 0.22 - 0.32 mm (0.0087 - 0.0126 inch)
Limit 0.52 mm (0.0205 inch)
Oil (rail ring)
Standard 0.20 - 0.60 mm (0.0079 - 0.0236 inch)
Limit 0.96 mm (0.0378 inch)