Piston Ring, Engine

Piston Ring
Piston ring side clearance
No. 1
Standard value 0.03 - 0.07 mm (0.0012 - 0.0028 in)
Limit 0.1 mm (0.003 in)
No. 2
Standard value 0.02 - 0.06 mm (0.0008 - 0.0024 in)
Limit 0.1 mm (0.003 in)
Piston ring end gap
No. 1
Standard value 0.15 - 0.30 mm (0.006 - 0.012 in)
Limit 0.8 mm (0.03 in)
No. 2
Standard value 0.28 - 0.43 mm (0.011 - 0.017 in)
Limit 0.8 mm (0.03 in)
Oil ring side rail
Standard value 0.10 - 0.40 mm (0.003 - 0.015 in)
Limit 1.0 mm (0.03 in)