Mitsubishi Workshop Service and Repair Manuals

Piston Ring: Specifications

Engine Overhaul

Piston ring side clearance

No.1

Standard value ..............................................................................................................................................  0.03 - 0.07 mm ().0012 - 0.0028 in.)
Limit .........................................................................................................................................................................................  0.1 mm (0.003 in.)

No.2

Standard value .............................................................................................................................................  0.02 - 0.06 mm (0.0008 - 0.0023 in.)
Limit .........................................................................................................................................................................................  0.1 mm (0.003 in.)

Piston ring end gap

No.1

Standard value ...............................................................................................................................................  0.15 - 0.30 mm (0.006 - 0.0012 in.)
Limit ...........................................................................................................................................................................................  0.8 mm (0.03 in.)

No.2

Standard value .................................................................................................................................................  0.28 - 0.43 mm (0.011 - 0.017 in.)
Limit ...........................................................................................................................................................................................  0.8 mm (0.03 in.)

Oil ring side rail

Standard value .................................................................................................................................................  0.10 - 0.40 mm (0.004 - 0.016 in.)
Limit ...........................................................................................................................................................................................  1.0 mm (0.03 in.)