JTDm 20V Alfa Romeo JTDm 20V
Дизельний 5-циліндровий двигун з турбонаддувом, відомий своєю потужністю та економічністю, але вимагає регулярного обслуговування для підтримки надійності.
48
Brand engines
1
Modifications
Technical Specifications
| Engine Displacement | 2.4 L (2,387 cc) |
| Configuration | Inline-5 |
| Number of Cylinders | 5 |
| Valves per Cylinder | 4 |
| Power | 175 - 200 л.с. |
| Torque | 385 - 400 Н*м |
| Cylinder Bore | 82.00 mm |
| Piston Stroke | 90.40 mm |
| Compression Ratio | 17.5:1 |
| Firing Order | 1-2-4-5-3 |
| Fuel System | Common Rail Direct Injection |
| Aspiration | Turbocharged |
| Turbocharger | Garrett GT2056V |
| Intercooler | Yes |
| Maximum RPM | 4,500 rpm |
| Max Torque RPM | 2,000 rpm |
| Valve Train | DOHC |
| Timing Drive | Belt |
| Timing belt replacement interval | 120,000 km |
| Block Material | Cast Iron |
| Head Material | Aluminum |
| Lubrication System | Wet sump |
| Cooling System | Liquid cooling |
Additional Information
| Engine Family | JTDm |
| Manufacturing Plant | Pratola Serra, Italy |
Maintenance
| Engine Oil Capacity | 6.4 L (with filter: 6.5 L) |
| Recommended Viscosity | 5W-40 |
| Oil Standard | ACEA C3 |
| Recommended Brands | Selenia WR, Castrol Edge, Mobil 1 |
| Oil Change Interval | 20 000 km or 12 mo |
| Oil Filter | 71736161 |
| Air Filter |
71754249
Replace every 40 000 km |
| Fuel filter | 71736160 |
| Cabin Filter | 71754300 |
| Spark Plugs | |
| Coolant Capacity | 8 L |
| Coolant Type | G12 (Paraflu) |
| Coolant Change Interval | 240 000 km |
| Thermostat Opening Temperature | 88°C |
| Operating Temperature | 90°C |
| Max Operating Temperature | 110°C |
| Critical Temperature | 120°C |
| Annual Maintenance Cost | 500-800 USD |
Reliability
Expected lifespan: 250 000 km
Common problems
| Problem | Severity | Mileage | Repair cost |
|---|---|---|---|
| EGR valve clogging | Medium | 100000-150000 km | $200-400 |
| Turbocharger failure | High | 150000-200000 km | $1000-1500 |
Known defects
- Early models had issues with the EGR valve
Tuning potential
Tuning potential: Medium | Max. safe power: 300 hp
| Stage | Power | Torque | Method | Cost |
|---|---|---|---|---|
| Stage 1 | 220 hp | 450 Nm |
ECU remap only Reliability impact: Minimal |
$400 |
| Stage 2 | 250 hp | 500 Nm |
ECU, Downpipe, Intake Required: Upgraded intercooler, ECU remap Reliability impact: Low |
$1500 |
| Stage 3 | 280 hp | 550 Nm |
- Required: Bigger turbo, Upgraded fuel system Reliability impact: Medium |
$5000 |
Popular modifications
- ECU remap
- Upgraded intercooler
- Performance exhaust
Tuning limitations
- Stock internals limit power increase
- Cooling system upgrades recommended for high power
Cars with the JTDm 20V engine
This engine was fitted to 1 model
| Photo | Brand | Model | Generation | Production years |
|---|---|---|---|---|
|
No photo
|
Alfa Romeo | 147 | 147 | 1998 - 2010 |
All modifications (1)
| Vehicle | Generation | Modification | Power | Gearbox | Drive |
|---|---|---|---|---|---|
| Alfa Romeo 147 | 147 | 2.4 JTD 200 л.с. 6-МКП 4x4 | 200 hp | 6-МКП | 4x4 |
Interesting Facts
- The JTDm 20V was one of the first diesel engines to feature a 20-valve configuration.
- It was known for its smooth power delivery and strong mid-range torque.
Applications
| Vehicle | Generation | Years | Power | Markets |
|---|---|---|---|---|
| Alfa Romeo 156 | 932 | 2003-2005 | 175hp | Europe |
| Alfa Romeo 166 | 936 | 2003-2007 | 175hp | Europe |
| Alfa Romeo 159 | 939 | 2005-2010 | 200hp | Europe |
Compatible transmissions: 6-speed Manual, 5-speed Automatic
Drive types: FWD
Fuel Economy
| Fuel Type | Diesel |
| Consumption (City) | 9 L/100km |
| Consumption (Highway) | 5.5 L/100km |
| Consumption (Combined) | 6.8 L/100km |
| Real Consumption | 7.5 L/100km |
| Fuel Tank Capacity | 70 L |
| Range | 1,029 km |
| Cost per 100 km | 10-12 USD |
Emissions Standards
| Emission Standard | Euro 4 |
| CO₂ Emissions | 179 g/km |
| Particulate Filter (DPF) |
Present Regeneration every 500 km |
| AdBlue | Not Required |