Piston Ring, Engine

Piston Ring
Side clearance
Top
Standard 0.045 - 0.080 mm (0.0018 -0.0031)
Limit 0.11 mm (0.0043 in)

2nd
Standard 0.030 - 0.070 mm (0.0012 - 0.0028 in)
Limit 0.10 mm (0.0039 in)

Oil ring
Standard 0.065 - 0.135 mm (0.0026 -0.0053 in)

End gap
Top 0.23 - 0.33 mm (0.0091 - 0.0130) 0.56 (0.0220 in)
2nd 0.33 - 0.48 mm (0.0130 - 0.0189) 0.68 (0.0268 in)
Oil (rail ring) 0.20 - 0.50 mm (0.0079 - 0.0197) 0.85 (0.0335 in)