Pistons and connecting rods
- Make
- Alfa Romeo
- Model
- 159 Factory Service Manual
- Year
- 2005–2011
- Section
- Engine unit › Pistons and connecting rods
Tightening torquesPistons and connecting rods
PISTONS AND CONNECTING RODS
| Component | Fastening | dia | Value (daNm) | Validity |
|---|---|---|---|---|
| Connecting rod big end bearing caps | Bolt | M8 | 2.5 + 50° + 50° + 10° | 1.9 JTS 2.2 JTS |
| Connecting rod big end bearing caps | Bolt | M9 | 2.4 ÷ 2.6 + 60° | 1.9 JTD 8V 1.9 JTD 16V 2.4 JTD 20V |
| Connecting rod big end bearing caps | Bolt | 3.0; loosen; 2.5 + 110° | 3.2 JTS | |
| Connecting rod big end bearing caps | Bolt (to be replaced) | 2.5 + 30° + 15° | 1.8 | |
| Bearing caps | Bolt | M12 | 1.9 ÷ 2.1 + 100° | 1.9 JTD 16V |
| Bearing caps | Bolt | M12 | 2.4 ÷ 2.6 + 100° | 1.9 JTD 8V 2.4 JTD 20V |
| Bearing cap | Outer upper bolt | 1.5 + 110° | 3.2 JTS | |
| Bearing cap | Inner upper bolt | 2.0 + 80° | 3.2 JTS | |
| Bearing cap | Side bolt (to be replaced) | 3.0 + 60° | 3.2 JTS | |
| Bearing caps | Bolt (to be replaced) | 5.0 + 45° + 15° | 1.8 |
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