Piston Ring, Engine

Piston ring side clearance
No.1
Standard value 0.02 - 0.06 mm (0.0008 - 0.0023 inch)
Limit 0.1 mm (0.003 inch)
No.2
Standard value 0.02 - 0.06 mm (0.0012 - 0.0023 inch)
Limit 0.1 mm (0.003 inch)
Piston ring end gap
No.1
Standard value 0.25 - 0.35 mm (0.010 - 0.013 inch)
Limit 0.8 mm (0.03 inch)
No.2
Standard value 0.40 - 0.55 mm (0.016 - 0.021 inch)
Limit 0.8 mm (0.03 inch)
Oil ring side rail
Standard value 0.10 - 0.40 mm (0.004 - 0.015 inch)
Limit 1.0 mm (0.03 inch)