Piston

Piston Dimensions and Clearances






Piston ring side clearance

Standard
No.1 0.04 - 0.078 mm (0.0016 - 0.0031 in.)
No.2 0.03 - 0.07 mm (0.0012 - 0.0027 in.)
Oil ring 0.06 - 0.15 mm (0.0024 - 0.0059 in.)

Limit
No.1 0.1 mm (0.004 in.)
No.2 0.1 mm (0.004 in.)
Oil ring 0.2 mm (0.008 in.)

Piston ring end gap

Standard
No.1 0.17 - 0.32 mm (0.0067 - 0.0126 in.)
No.2 0.32 - 0.47 m (0.0126 - 0.0185 in.)
Oil ring 0.20 - 0.70 mm (0.0079 - 0.0275 in.)

Limit
No.1 0.6 mm (0.0236 in.)
No.2 0.7 mm (0.0275 in.)
Oil ring 0.8 mm (0.0315 in.)