Piston Ring: Specifications

Piston Ring
Piston ring side clearance
No.1 0.04 - 0.08 mm (0.0016 - 0.0031 inch)
No.2 0.03 - 0.07 mm (0.0012 - 0.0028 inch)
Oil ring 0.06 - 0.15 mm (0.0024 - 0.0059 inch)
Limit
No.1 0.1 mm (0.0039 inch)
No.2 0.1 mm (0.0039 inch)
Oil ring 0.2 mm (0.0079 inch)
Piston ring end gap
Standard
No.1 0.23 - 0.38 mm (0.0091 - 0.0150 inch)
No.2 0.33 - 0.48 mm (0.0130 - 0.0189 inch)
Oil ring 0.20 - 0.60 mm (0.0079 - 0.0236 inch)
Limit
No.1, 2, oil ring 1.0 mm (0.039 inch)