Volvo B20 Engine Specifications
The Volvo B20 engine is a well-regarded powerplant that has been used in various Volvo models, particularly during the late 1960s and early 1970s. This engine is known for its durability and performance, making it a popular choice among classic car enthusiasts. Below are the detailed specifications of the Volvo B20 engine.
| Specification | Details |
|---|---|
| Engine Type | Inline 4-cylinder |
| Displacement | 1986 cc (121.5 cu in) |
| Bore x Stroke | 88 mm x 80 mm (3.46 in x 3.15 in) |
| Compression Ratio | 8.5:1 (varies with model) |
| Power Output | 100 hp (74.6 kW) at 5,500 rpm |
| Torque | 130 Nm (96 lb-ft) at 3,500 rpm |
| Fuel System | Single or dual carburetor (varies by model) |
| Ignition System | Conventional ignition (points and condenser) |
| Cooling System | Water-cooled |
Engine Configuration
The Volvo B20 engine features a robust inline 4-cylinder configuration, which contributes to its smooth operation and reliability. Here are some key aspects of its configuration:
Key Features
- Inline 4-cylinder layout for compactness and efficiency.
- Aluminum cylinder head for reduced weight and improved thermal efficiency.
- Cast iron block for durability and strength.
- Overhead valves (OHV) for better performance and fuel efficiency.
Applications
The B20 engine was used in various Volvo models, including:
- Volvo 140 Series
- Volvo 164
- Volvo P1800E
Engine Oil Specifications
Proper lubrication is essential for the longevity and performance of the Volvo B20 engine. Below are the recommended engine oil specifications.
| Specification | Details |
|---|---|
| Oil Type | Synthetic or conventional motor oil |
| Viscosity Rating | 10W-30 or 20W-50 (depending on climate) |
| Oil Capacity | 4.5 liters (4.8 quarts) with filter change |
Service Intervals
Regular maintenance is crucial to keep the Volvo B20 engine running smoothly. Below are the recommended service intervals for oil changes and general maintenance.
Oil Change Intervals
- Every 5,000 km (3,100 miles) or 6 months, whichever comes first.
- For severe driving conditions (e.g., stop-and-go traffic, towing), consider changing oil every 3,000 km (1,900 miles).
General Maintenance Schedule
The following maintenance tasks should be performed at regular intervals:
- Check and replace air filter: every 15,000 km (9,300 miles).
- Inspect and replace fuel filter: every 30,000 km (18,600 miles).
- Inspect spark plugs: every 20,000 km (12,400 miles).
- Check valve clearance: every 30,000 km (18,600 miles).
- Inspect cooling system and replace coolant: every 2 years.
Conclusion
The Volvo B20 engine is a testament to Volvo’s engineering excellence, offering a blend of performance, reliability, and ease of maintenance. Understanding its specifications, configuration, oil requirements, and service intervals can help owners maintain their vehicles in optimal condition. Regular maintenance not only enhances performance but also extends the life of the engine, ensuring that it continues to deliver the driving experience that Volvo enthusiasts cherish.
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