Yanmar 2GM20F: A Comprehensive Marine Diesel Engine Guide

Yanmar 2GM20F Specs: A Comprehensive Overview

Introduction

The Yanmar 2GM20F is a reliable and efficient marine diesel engine that has gained popularity among boat owners and enthusiasts. This article aims to provide a detailed overview of the specifications of the Yanmar 2GM20F, covering various aspects such as power output, dimensions, fuel consumption, and more.

Engine Specifications

  • Engine Type: Vertical, water-cooled, 4-stroke diesel engine
  • Number of Cylinders: 2
  • Bore x Stroke: 75 mm x 72 mm (2.95 in x 2.83 in)
  • Displacement: 0.635 L (38.7 cu in)
  • Compression Ratio: 21:1
  • Combustion System: Direct injection
  • Max. Output: 18.2 hp (13.4 kW) @ 3,600 rpm
  • Max. Torque: 32.5 Nm (24 lb-ft) @ 2,400 rpm

Dimensions and Weight

  • Overall Length: 616 mm (24.3 in)
  • Overall Width: 417 mm (16.4 in)
  • Overall Height: 535 mm (21.1 in)
  • Dry Weight: 116 kg (256 lbs)

Fuel System

  • Fuel Type: Diesel
  • Fuel Injection Pump: Mechanical
  • Fuel Consumption at Rated Output: 3.9 L/h (1.03 gal/h)
  • Fuel Tank Capacity: 40 L (10.6 gal)

Cooling System

  • Cooling Method: Freshwater cooling with heat exchanger
  • Cooling Water Capacity (Engine Only): 2.2 L (0.58 gal)
  • Thermostat Opening Temperature: 71°C (160°F)

Electrical System

  • Starting System: Electric start
  • Charging Alternator: 12V – 35A
  • Battery Capacity: 12V – 45Ah

Transmission

  • Reduction Gear Ratio (Forward): 2.03:1
  • Reduction Gear Ratio (Reverse): 2.36:1

Additional Features

  • Exhaust System: Wet type
  • Lubrication System: Forced lubrication with trochoid pump
  • Alternator: 12V – 35A
  • Control System: Mechanical

Conclusion

The Yanmar 2GM20F is a compact yet powerful marine diesel engine that offers reliable performance and fuel efficiency. With its robust construction and user-friendly design, it has become a popular choice for boat owners worldwide. Whether you’re looking for a reliable propulsion system or a backup power source, the Yanmar 2GM20F is a worthy option to consider.

Please note that the specifications provided in this article are based on available data and may vary slightly depending on the specific model or version. For the most accurate and up-to-date information, it is recommended to refer to the official Yanmar documentation or consult with a certified Yanmar dealer.

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Adam

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

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