Note: If the cylinder is bored, an oversize piston must be used.
2. Measure the diameter of the piston at distance A from the bottom of the skirt.
Engines А16А2, В16А4, В16А5, В16А6
- Distance A: 15 mm
Other engines:
- Distance A: 5mm
Piston diameter:
Engines V16A2, V16A4, V16A5, V16A6:
- Nominal value: 80.960-80.990 mm
- Operational values: 80.970 mm
Other engines:
- Nominal value: 74.980-74.990 mm
- Operational values: 74.970 mm
3. Calculate the difference between the cylinder bore diameter and the piston diameter.
Clearance between cylinder and piston
- Nominal value: 0.010-0.040mm
- Operational values: 0.05 mm
If the clearance is close to or exceeds the service specifications, inspect the piston and cylinder block for excessive wear.
Repair size piston diameter
Engines V16A2, V16A4, V16A5, V16A6:
- With an increase of 0.25 mm: 81.23-81.24 mm
Other engines:
- With an increase of 0.25 mm: 75.23-75.24 mm
- With an increase of 0.50 mm: 75.48-75.49 mm