Yanmar 3JH2E: A Comprehensive Marine Diesel Engine Guide

Yanmar 3JH2E Specs: A Detailed Overview

Introduction

The Yanmar 3JH2E is a reliable and powerful marine diesel engine that has gained popularity among boat owners and enthusiasts. With its impressive specifications and performance, it is worth exploring the key details of this engine. In this article, we will delve into the various specifications of the Yanmar 3JH2E, providing you with a comprehensive understanding of its capabilities.

Engine Specifications

Engine Model Yanmar 3JH2E
Type In-line, 4-stroke, direct injection
Cylinder Arrangement Vertical
No. of Cylinders 3
Bore x Stroke 80 mm x 84 mm (3.15 in x 3.31 in)
Displacement 1.64 L (100.2 cu in)
Compression Ratio 22.5:1

Performance

  • Maximum Output: 38 hp (28 kW) at 3,600 rpm
  • Continuous Rating Output: 34 hp (25 kW) at 3,200 rpm
  • Maximum Torque: 82 Nm (60.4 ft-lb) at 2,400 rpm

Fuel System

  • Fuel Injection Pump: Bosch MD type mini-pump
  • Fuel Injection Nozzle: Yanmar YPD-MP2
  • Fuel Injection Timing: 23° BTDC

Cooling System

  • Cooling Method: Freshwater cooling with heat exchanger
  • Thermostat Opening Temperature: 71°C (160°F)
  • Water Pump: Centrifugal type

Lubrication System

  • Lubrication Method: Trochoid pump
  • Oil Capacity: 5.7 L (6.0 US qt)
  • Oil Filter: Full-flow type

Electrical System

  • Starting System: Electric start with solenoid shift
  • Charging Alternator: 12V, 60A
  • Battery: 12V, 60Ah

Dimensions and Weight

Length 674 mm (26.5 in)
Width 471 mm (18.5 in)
Height 591 mm (23.3 in)
Dry Weight 140 kg (309 lbs)

Conclusion

The Yanmar 3JH2E is a robust and efficient marine diesel engine that offers impressive performance and reliability. With its compact design and powerful output, it is suitable for a variety of marine applications. Understanding its specifications and capabilities is essential for boat owners and enthusiasts looking for a dependable engine to power their vessels. The Yanmar 3JH2E is undoubtedly a worthy choice for those seeking a high-quality marine diesel engine.

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Adam

An engineer with 20 years of experience. Passionate about construction, mechanisms and heavy construction machines

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