Piston Ring, Engine

Piston ring side clearance
No.1
Standard value 0.03 - 0.08 mm (0.0012 - 0.0028 inch)
Limit 0.1 mm (0.0039 inch)
No.2
Standard value 0.02 - 0.06 mm (0.0008 - 0.0024 inch)
Limit 0.1 mm (0.0039 inch)
Piston ring end gap
No.1
Standard value 0.15 - 0.30 mm (0.0059 - 0.0118 inch)
Limit 0.8 mm (0.031 inch)
No.2
Standard value 0.40 - 0.55 mm (0.0157 - 0.0217 inch)
Limit 0.8 mm (0.031 inch)
Oil ring
Standard value 0.10 - 0.35 mm (0.0039 - 0.0138 inch)
Limit 1.0 mm (0.039 inch)