Piston Ring, Engine

Piston ring to ring groove clearance No.1 ring
Standard Value 0.03 - 0.07 mm (0.0012 - 0.0028 inch)
Limit 0.1 mm (0.004 inch)
Piston ring to ring groove clearance No.2 ring
Standard Value 0.02 - 0.06 mm (0.0008 - 0.0024 inch)
Limit 0.1 mm (0.004 inch)
Piston ring end gap No.1 ring
Standard Value 0.25 - 0.40 mm (0.0098 - 0.0157 inch)
Limit 0.8 mm (0.031 inch)
Piston ring end gap No.2 ring
Standard Value 0.40 - 0.55 mm (0.0157 - 0.0217 inch)
Limit 0.8 mm (0.031 inch)
Piston ring end gap Oil ring
Standard Value 0.15 - 0.50 mm (0.0059 - 0.0197 inch)
Limit 1.0 mm (0.039 inch)