Piston Ring, Engine

Piston ring to ring groove clearance
No. 1
Standard Value 0.03 - 0.07 mm (0.0012 - 0.0027 inch)
Limit 0.1 mm (0.003 inch)
No. 2
Standard Value 0.02 - 0.06 mm (0.0008 - 0.0023 inch)
Limit 0.1 mm (0.003 inch)
Piston ring end gap
No. 1
Standard Value 0.03 - 0.07 (0.0012 - 0.0027)
Limit 0.8 mm (0.03 inch)
No. 2
Standard Value 0.02 - 0.06 mm (0.0008 - 0.0023 inch)
Limit 0.8 mm (0.03 inch
Oil ring side rail
Standard Value 0.20 - 0.060 mm (0.018 - 0.023 inch)
Limit 0.08 mm (0.03 inch)