Nissan A12 Engine Specifications
The Nissan A12 engine is a notable powerplant that has been utilized in various models, particularly during the 1970s and 1980s. This engine is part of the A-series family, which is known for its reliability and efficiency. Below are the detailed specifications of the Nissan A12 engine.
| Specification | Details |
|---|---|
| Engine Type | Inline 4-cylinder |
| Displacement | 1.2 liters (1,197 cc) |
| Bore x Stroke | 76 mm x 73.7 mm |
| Compression Ratio | 8.5:1 |
| Power Output | 65-70 hp (48-52 kW) at 6,000 rpm |
| Torque | 85-90 Nm (62-66 lb-ft) at 3,600 rpm |
| Fuel System | Single carburetor |
| Ignition System | Conventional distributor |
| Cooling System | Water-cooled |
| Weight | Approximately 100 kg (220 lbs) |
Engine Configuration
The Nissan A12 engine features a straightforward and efficient design that contributes to its performance and longevity. Understanding its configuration is essential for both enthusiasts and mechanics.
Key Features of the A12 Engine Configuration
- Inline 4-cylinder Layout: This configuration allows for a compact design, making it suitable for smaller vehicles.
- SOHC (Single Overhead Camshaft): The A12 utilizes a single camshaft located in the cylinder head, which simplifies the engine design and reduces weight.
- Water-Cooled System: The engine employs a water-cooling system to maintain optimal operating temperatures, enhancing performance and reliability.
- Single Carburetor: The use of a single carburetor aids in fuel efficiency and simplifies maintenance.
Engine Oil Specifications
Proper lubrication is crucial for the longevity and performance of the Nissan A12 engine. Selecting the right engine oil and adhering to service intervals can significantly impact engine health.
Recommended Engine Oil
- Oil Type: SAE 10W-30 or SAE 20W-50
- Oil Capacity: Approximately 3.5 liters (3.7 quarts) with filter change
Oil Change Intervals
Maintaining the engine oil at regular intervals is vital for optimal performance. The following guidelines are recommended:
- Change engine oil every 5,000 km (3,100 miles) under normal driving conditions.
- For severe driving conditions (e.g., heavy traffic, extreme temperatures), consider changing oil every 3,000 km (1,860 miles).
Service Intervals
Regular maintenance is essential to ensure the Nissan A12 engine operates efficiently. Below are the recommended service intervals for various components.
General Maintenance Schedule
| Service Item | Interval |
|---|---|
| Engine Oil Change | Every 5,000 km (3,100 miles) |
| Oil Filter Replacement | Every 5,000 km (3,100 miles) |
| Air Filter Replacement | Every 10,000 km (6,200 miles) |
| Fuel Filter Replacement | Every 20,000 km (12,400 miles) |
| Spark Plug Replacement | Every 20,000 km (12,400 miles) |
| Coolant Replacement | Every 40,000 km (24,800 miles) |
Additional Maintenance Tips
- Regularly check the engine coolant level and top up as necessary.
- Inspect belts and hoses for wear and replace them if any signs of damage are present.
- Monitor tire pressure and tread depth to ensure optimal handling and fuel efficiency.
Conclusion
The Nissan A12 engine is a reliable and efficient powerplant that has stood the test of time. Understanding its specifications, configuration, and maintenance requirements is essential for anyone looking to keep this engine running smoothly. By adhering to recommended oil specifications and service intervals, owners can ensure their A12 engine remains in excellent condition for years to come.
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