Isuzu 4ZE1 Engine Torque Specs
Introduction
The Isuzu 4ZE1 engine is a four-cylinder, 2.6-liter gasoline engine that was commonly used in various Isuzu vehicles. It is known for its reliability and durability, making it a popular choice among car enthusiasts and mechanics. In this article, we will explore the torque specifications of the Isuzu 4ZE1 engine, providing you with the necessary information for maintenance and repairs.
Torque Specifications
To ensure proper installation and operation of engine components, it is crucial to follow the recommended torque specifications. Here are the torque specs for some key components of the Isuzu 4ZE1 engine:
- Cylinder Head Bolts: 65-72 ft-lbs (88-98 Nm)
- Main Bearing Cap Bolts: 54-61 ft-lbs (73-83 Nm)
- Connecting Rod Bolts: 29-36 ft-lbs (39-49 Nm)
- Camshaft Sprocket Bolt: 43-51 ft-lbs (58-69 Nm)
- Timing Belt Tensioner Bolt: 29-36 ft-lbs (39-49 Nm)
- Intake Manifold Bolts: 14-18 ft-lbs (19-24 Nm)
- Exhaust Manifold Bolts: 18-23 ft-lbs (24-31 Nm)
- Flywheel Bolts: 54-61 ft-lbs (73-83 Nm)
Engine Configuration
The Isuzu 4ZE1 engine features a cast iron block and cylinder head, providing excellent strength and heat dissipation. It has a single overhead camshaft (SOHC) design with two valves per cylinder. The engine is equipped with a carburetor for fuel delivery and a distributor for ignition timing control.
Engine Oil Specs & Service Intervals
Proper engine oil selection and regular oil changes are essential for maintaining the performance and longevity of the Isuzu 4ZE1 engine. Here are the recommended engine oil specifications and service intervals:
- Engine Oil Type: SAE 10W-30 or SAE 10W-40
- Oil Capacity (including filter): 4.2 quarts (4.0 liters)
- Oil Change Interval: Every 3,000 miles (or as recommended by the manufacturer)
Regular oil changes help remove contaminants and maintain proper lubrication, reducing wear and tear on engine components. It is also important to replace the oil filter during each oil change to ensure optimal filtration.
Detailed Engine Specifications
| Engine Type | Isuzu 4ZE1 |
|---|---|
| Displacement | 2.6 liters (2,606 cc) |
| Number of Cylinders | 4 |
| Valvetrain | SOHC (Single Overhead Camshaft) |
| Valves per Cylinder | 2 |
| Compression Ratio | 8.9:1 |
| Maximum Power | 120 horsepower at 4,600 rpm |
| Maximum Torque | 150 lb-ft at 2,800 rpm |
Conclusion
The Isuzu 4ZE1 engine is a reliable and durable powerplant that has been widely used in Isuzu vehicles. By following the recommended torque specifications and maintaining proper engine oil levels and service intervals, you can ensure the longevity and optimal performance of your Isuzu 4ZE1 engine. Regular maintenance and attention to detail will help you enjoy many miles of trouble-free driving.
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