Yanmar 3JH40 Specs: A Detailed Overview
Engine Specifications
| Engine Model | Yanmar 3JH40 |
| Type | In-line, 4-stroke, direct injection |
| Cylinder Configuration | 3 cylinders |
| Displacement | 1.642 liters (100.2 cubic inches) |
| Bore x Stroke | 88 mm x 90 mm (3.46 inches x 3.54 inches) |
| Aspiration | Naturally aspirated |
| Cooling System | Freshwater cooled |
| Max. Output | 40 horsepower (29.4 kilowatts) at 3,000 RPM |
| Max. Torque | 108 Nm (79.7 ft-lb) at 2,200 RPM |
| Compression Ratio | 23.5:1 |
Fuel System
| Fuel Type | Diesel |
| Fuel Injection | Direct injection |
| Fuel Consumption | 4.2 liters per hour (1.1 gallons per hour) at rated output |
| Fuel Tank Capacity | 90 liters (23.8 gallons) |
Dimensions and Weight
| Length | 816 mm (32.1 inches) |
| Width | 497 mm (19.6 inches) |
| Height | 658 mm (25.9 inches) |
| Dry Weight | 165 kg (363 lbs) |
Performance
| Max. Speed | 7.5 knots (8.6 mph or 13.9 km/h) |
| Continuous Rating | 3,000 RPM |
| Idle Speed | 800 RPM |
Other Specifications
- Starting System: Electric start
- Lubrication System: Forced lubrication
- Alternator: 12V – 80A
- Exhaust System: Wet type
- Control System: Mechanical
- Recommended Engine Oil: Yanmar Genuine Diesel Engine Oil 15W40
Conclusion
With its powerful and efficient design, the Yanmar 3JH40 engine offers a reliable solution for various marine applications. Delivering 40 horsepower and featuring a direct injection fuel system, this engine ensures optimal performance and fuel efficiency. Its compact dimensions and lightweight construction make it suitable for a range of vessels. Whether you’re cruising at 7.5 knots or enjoying the peace of idle speed, the Yanmar 3JH40 is a dependable choice for marine enthusiasts.
