Piston Ring, Engine

Piston ring to ring groove clearance mm (in)
No.1
Standard value 0.03 - 0.07 (0.0012 - 0.0027)
Limit 0.1 (0.003)
No.2
Standard value 0.02 - 0.06 (0.0008 - 0.0023)
Limit 0.1 (0.003)
Piston ring end gap mm (in)
No.1
Standard value 0.25- 0.40 (0.010 - 0.016)
Limit 0.8 (0.03)
No.2
Standard value 0.35 - 0.50 (0.014 - 0.020)
Limit 0.8 (0.03)
Oil ring side rail
Standard value 0.10 - 0.35 (0.003 - 0.014)
Limit 1.0 (0.03)