Pistons and connecting rods – pistons
- Make
- Alfa Romeo
- Model
- 159 Factory Service Manual
- Year
- 2005–2011
- Section
- Engine unit › Pistons and connecting rods – pistons
Manufacturing data and tolerancesPistons and connecting rods – pistons
PISTONS AND CONNECTING RODS – PISTONS
| Measurement | Value | Validity |
|---|---|---|
| Piston outer diameter (8 mm from the bottom) | 85.957 - 85.972 mm | 1.9 JTS 2.2 JTS |
| Piston outer diameter | 88.956 - 88.974 mm | 3.2 JTS |
| Piston outer diameter - Grade A | 81.920 - 81.930 mm | 1.9 JTD 8V 1.9 JTD 16V 2.4 JTD 20V |
| Piston outer diameter - Grade B | 81.930 - 81.940 mm | 1.9 JTD 8V 1.9 JTD 16V 2.4 JTD 20V |
| Piston outer diameter - Grade C | 81.940 - 81.950 mm | 1.9 JTD 8V 1.9 JTD 16V 2.4 JTD 20V |
| Piston outer diameter - Grade 00 | 80.455 - 80.465 mm | 1.8 |
| Piston outer diameter - Grade 05 | 80.505 - 80.515 mm | 1.8 |
| Piston outer diameter oversize | 0.5 mm | 1.8 |
| Piston - cylinder bore clearance | 0.020 - 0.051 mm | 1.9 JTS 2.2 JTS |
| Piston - cylinder bore clearance | 0.045 - 0.175 mm | 1.8 |
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