K7J 740 Renault K7J 740
Атмосферний 4-циліндровий двигун, відомий своєю простотою та надійністю, але з обмеженими можливостями для тюнінгу.
81
Brand engines
1
Modifications
Technical Specifications
| Engine Displacement | 1.4 L (1,390 cc) |
| Configuration | Inline-4 |
| Number of Cylinders | 4 |
| Valves per Cylinder | 2 |
| Power | 75 - 90 л.с. |
| Torque | 120 - 130 Н*м |
| Cylinder Bore | 76.00 mm |
| Piston Stroke | 82.00 mm |
| Compression Ratio | 9.5:1 |
| Firing Order | 1-3-4-2 |
| Fuel System | Multi-point Fuel Injection |
| Aspiration | Naturally Aspirated |
| Intercooler | No |
| Maximum RPM | 6,000 rpm |
| Max Torque RPM | 3,500 rpm |
| Valve Train | SOHC |
| Timing Drive | Belt |
| Timing belt replacement interval | 60,000 km |
| Block Material | Cast Iron |
| Head Material | Aluminum |
| Engine Weight | 120 kg |
| Dimensions (L×W×H) | 600 × 500 × 600 mm |
| Lubrication System | Wet Sump |
| Cooling System | Liquid cooling |
Additional Information
| Engine Family | Renault K engine series |
| Manufacturing Plant | Flins, France |
Maintenance
| Engine Oil Capacity | 4.5 L (with filter: 5 L) |
| Recommended Viscosity | 10W-40 |
| Oil Standard | API SL |
| Recommended Brands | Total Quartz, Elf Evolution, Castrol GTX |
| Oil Change Interval | 12 000 km or 12 mo |
| Oil Filter | 7701476636 |
| Air Filter |
7701476637
Replace every 30 000 km |
| Spark Plugs |
Type: Copper Part number: 7700500071Gap: 0.8 mm Quantity: 4 pcs Replace every 30 000 km |
| Coolant Capacity | 6 L |
| Coolant Type | G11 (Renault Coolant) |
| Coolant Change Interval | 240 000 km |
| Thermostat Opening Temperature | 85°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 |
|---|---|---|---|
| Timing belt wear | Medium | 60000-100000 km | $300-500 |
| Oil leaks from gaskets | Low | 80000-120000 km | $100-200 |
Known defects
- Some early models had issues with head gasket failure
Warranty extensions
- Renault offers extended warranty options for specific components
Tuning potential
Tuning potential: Medium | Max. safe power: 130 hp
| Stage | Power | Torque | Method | Cost |
|---|---|---|---|---|
| Stage 1 | 100 hp | 140 Nm |
ECU remap only Reliability impact: Minimal |
$300 |
| Stage 2 | 110 hp | 150 Nm |
- Required: Cold air intake, ECU remap Reliability impact: Low |
$800 |
| Stage 3 | 120 hp | 160 Nm |
- Required: Turbocharger kit, ECU remap Reliability impact: Medium |
$2000 |
Popular modifications
- ECU remap
- Cold air intake
- Performance exhaust
Tuning limitations
- Limited by stock fuel system
- Turbocharger modifications require extensive work
Cars with the K7J 740 engine
This engine was fitted to 1 model
| Photo | Brand | Model | Generation | Production years |
|---|---|---|---|---|
|
No photo
|
Renault | Logan | Logan | 2004 - 2012 |
All modifications (1)
| Vehicle | Generation | Modification | Power | Gearbox | Drive |
|---|---|---|---|---|---|
| Renault Logan | Logan | 1.4 75 л.с. 5-МКП 2WD | 75 hp | 5-МКП | 2WD |
Interesting Facts
- The K7J engine was widely used in various Renault models throughout the late 1990s and early 2000s.
- It is known for its reliability and ease of maintenance.
Applications
Total produced: approximately 500000
| Vehicle | Generation | Years | Power | Markets |
|---|---|---|---|---|
| Renault Clio | II | 1998-2006 | 75hp/90hp | Europe |
| Renault Megane | I | 1999-2002 | 75hp/90hp | Europe |
Compatible transmissions: 5-speed Manual, 4-speed Automatic
Drive types: FWD
Fuel Economy
| Fuel Type | Petrol 95 |
| Octane Rating | Minimum: 95 | Recommended: 95 |
| Consumption (City) | 9 L/100km |
| Consumption (Highway) | 5.5 L/100km |
| Consumption (Combined) | 7 L/100km |
| Real Consumption | 8 L/100km |
| Fuel Tank Capacity | 50 L |
| Range | 714 km |
| Cost per 100 km | 10-12 USD |
Emissions Standards
| Emission Standard | Euro 3 |
| CO₂ Emissions | 160 g/km |
| Particulate Filter (DPF) | Absent |
| AdBlue | Not Required |