Jeep 4.7 Engine Specifications
The Jeep 4.7 engine, also known as the 4.7L PowerTech V8, is a robust powerplant that has been utilized in various Jeep models, particularly during the late 1990s and early 2000s. This engine is known for its blend of power and efficiency, making it a popular choice among off-road enthusiasts and daily drivers alike.
Engine Specifications Chart
| Specification | Details |
|---|---|
| Engine Type | V8 |
| Displacement | 4.7 liters (287 cubic inches) |
| Configuration | DOHC (Dual Overhead Camshaft) |
| Fuel System | Multi-Point Fuel Injection |
| Compression Ratio | 9.5:1 |
| Horsepower | 305 hp @ 5,200 rpm |
| Torque | 330 lb-ft @ 3,800 rpm |
| Fuel Type | Regular Unleaded (87 octane) |
| Engine Weight | Approximately 500 lbs |
| Engine Block Material | Cast Iron |
| Head Material | Aluminum |
Engine Configuration
The Jeep 4.7 engine features a V8 configuration, which provides a balance of power and smooth operation. This engine is designed with a dual overhead camshaft (DOHC) setup, allowing for better airflow and improved performance compared to traditional overhead valve designs.
Key Features of the Engine Configuration
- V8 Design: The V8 configuration allows for more power and torque, making it suitable for off-road applications.
- DOHC Setup: The dual overhead camshaft design enhances engine efficiency and performance.
- Multi-Point Fuel Injection: This system ensures optimal fuel delivery, improving throttle response and fuel economy.
- Cast Iron Block: The durable cast iron construction of the engine block contributes to longevity and reliability.
- Aluminum Heads: The use of aluminum for the cylinder heads reduces weight and improves heat dissipation.
Engine Oil Specifications
Proper maintenance of the Jeep 4.7 engine includes using the correct engine oil. The right oil not only lubricates the engine components but also helps in cooling and cleaning the engine.
Recommended Engine Oil Specifications
| Specification | Details |
|---|---|
| Oil Type | Synthetic or Conventional |
| Viscosity | 5W-30 |
| API Rating | API SN or higher |
| Capacity (with filter) | 6 quarts |
Service Intervals
Regular maintenance is crucial for the longevity and performance of the Jeep 4.7 engine. Adhering to the recommended service intervals helps in preventing potential issues and ensures that the engine operates efficiently.
Recommended Oil Change Intervals
- Every 3,000 to 5,000 miles for conventional oil.
- Every 7,500 to 10,000 miles for synthetic oil.
- Check oil level regularly, especially before long trips.
Other Maintenance Recommendations
- Air Filter Replacement: Every 15,000 to 30,000 miles, depending on driving conditions.
- Fuel Filter Replacement: Every 30,000 miles.
- Coolant Flush: Every 30,000 to 50,000 miles.
- Spark Plug Replacement: Every 30,000 to 100,000 miles, based on the type of spark plugs used.
Conclusion
The Jeep 4.7 engine is a well-engineered powerplant that offers a good balance of performance and reliability. Understanding its specifications, configuration, and maintenance needs is essential for any Jeep owner looking to maximize the lifespan and efficiency of their vehicle. Regular oil changes, adherence to service intervals, and using the correct engine oil will help keep the Jeep 4.7 running smoothly for years to come.
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