Isuzu 4JH1 Engine Specs
Engine Configuration
The Isuzu 4JH1 engine is a four-cylinder, direct injection, diesel engine. It features a displacement of 3.0 liters (2,999 cc) and is known for its robustness and reliability. The engine is equipped with an overhead camshaft (OHC) and a turbocharger, which helps enhance its performance and fuel efficiency.
Engine Oil Specs & Service Intervals
Proper engine oil selection and regular maintenance are crucial for the longevity and optimal performance of the Isuzu 4JH1 engine. Here are the engine oil specifications and recommended service intervals for this engine:
- Engine Oil Type: It is recommended to use a high-quality diesel engine oil that meets the specifications of API CJ-4 or ACEA E9. These oils provide excellent lubrication and protection for the engine components.
- Viscosity: The recommended viscosity for the Isuzu 4JH1 engine is 15W-40. This viscosity grade ensures proper lubrication in various operating conditions.
- Oil Capacity: The engine oil capacity for the Isuzu 4JH1 engine is approximately 7.8 liters.
Service Intervals
To maintain the engine’s performance and reliability, it is essential to follow the recommended service intervals. Here are the general service intervals for the Isuzu 4JH1 engine:
- Oil Change: It is recommended to change the engine oil and oil filter every 5,000 to 7,500 kilometers or every 3 to 6 months, whichever comes first. Regular oil changes help remove contaminants and ensure proper lubrication.
- Air Filter: The air filter should be inspected regularly and replaced if necessary. It is generally recommended to replace the air filter every 10,000 to 15,000 kilometers or every 12 months.
- Fuel Filter: The fuel filter should be replaced every 20,000 to 30,000 kilometers or every 12 months. This helps prevent fuel contamination and ensures proper fuel delivery to the engine.
- Timing Belt: The timing belt should be inspected and replaced according to the manufacturer’s recommendations. Typically, it is recommended to replace the timing belt every 100,000 kilometers or every 5 years.
- Coolant: The engine coolant should be flushed and replaced according to the manufacturer’s specifications. This is usually recommended every 40,000 to 60,000 kilometers or every 2 to 3 years.
Detailed Engine Specifications
| Engine Specifications | Values |
|---|---|
| Engine Type | Four-cylinder, diesel |
| Displacement | 2,999 cc |
| Configuration | Inline |
| Valvetrain | Overhead Camshaft (OHC) |
| Turbocharger | Yes |
| Max Power | 120 horsepower |
| Max Torque | 280 Nm |
| Bore x Stroke | 95.4 mm x 104.9 mm |
| Compression Ratio | 17.5:1 |
| Fuel System | Direct Injection |
In conclusion, the Isuzu 4JH1 engine is a reliable and efficient diesel engine known for its durability. By following the recommended engine oil specifications and service intervals, you can ensure the longevity and optimal performance of your Isuzu 4JH1-powered vehicle. Regular maintenance and proper care will help you enjoy the full potential of this robust engine.
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