Crank shaft and flywheel – main bearings
- Make
- Alfa Romeo
- Model
- 159 Factory Service Manual
- Year
- 2005–2011
- Section
- Engine unit › Crank shaft and flywheel – main bearings
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Manufacturing data and tolerancesCrank shaft and flywheel – main bearings
CRANK SHAFT AND FLYWHEEL – MAIN BEARINGS
| Measurement | Value | Validity |
|---|---|---|
| Clearance between main bearings - crankshaft bearings | 1.9 JTS 2.2 JTS | |
| Clearance between main bearings - crankshaft main journals | 0.011 - 0.071 mm | 1.9 JTD 8V 1.9 JTD 16V 2.4 JTD 20V |
| Clearance between main bearings - crankshaft main journals | 0.010 - 0.060 mm | 3.2 JTS |
| Clearance between main bearings - crankshaft main journals | 0.005 - 0.059 mm | 1.8 |
| Clearance between connecting rod bearings - crankshaft bearings | 1.9 JTS 2.2 JTS | |
| Main half bearing nominal thickness (brown) | 1.987 - 1993 mm | 1.8 |
| Main half bearing nominal thickness (green) | 1.993 ÷ 1.999 | 1.8 |
| Connecting rod half-bearing thickness oversize (0.25) (brown/blue) | 2.112 - 2.118 mm | 1.8 |
| Connecting rod half-bearing thickness oversize (0.50) (brown/white) | 2.237 - 2.243 mm | 1.8 |
| Connecting rod half-bearing thickness oversize (0.25) (green/blue) | 2.118 - 2.124 mm | 1.8 |
| Connecting rod half-bearing thickness oversize (0.50) (green/white) | 2.243 - 2.249 mm | 1.8 |
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