## Yanmar TNM 3TNM68 3TNM72 Engine

### Overview

The Yanmar TNM 3TNM68 and 3TNM72 engines are compact and lightweight 3-cylinder engines designed for a wide range of applications, including marine, industrial, and agricultural. Featuring advanced technology and rugged construction, these engines deliver reliable performance and long service life.

### Technical Specifications

* **Engine Type:** 3-cylinder, 4-stroke diesel
* **Displacement:** 3.3 liters
* **Bore x Stroke:** 110 mm x 125 mm
* **Maximum Output:** 50 to 75 hp (37 to 56 kW)
* **Rated Speed:** 2,600 to 3,400 rpm
* **Fuel System:** Direct injection with mechanical fuel pump
* **Cooling System:** Water-cooled with closed-loop cooling system
* **Lubrication System:** Pressure-lubricated with oil cooler
* **Starting System:** Electric starter with glow plugs

### Design and Features

**Compact and Lightweight:**
The TNM engines are designed to be compact and lightweight, making them ideal for applications where space is limited.

**Rugged Construction:**
The engines feature robust cast-iron cylinder blocks and forged steel crankshafts, ensuring durability and longevity.

**Electronic Fuel Injection:**
Equipped with a precise electronic fuel injection system, the engines deliver optimal fuel efficiency and reduced emissions.

**Turbocharged and Intercooled:**
The 3TNM72 engine incorporates a turbocharger and intercooler, providing increased power and torque at low rpms.

**Advanced Cooling System:**
The closed-loop cooling system ensures efficient temperature control and prevents overheating, even in demanding conditions.

### Applications

The Yanmar TNM 3TNM68 and 3TNM72 engines are suitable for a variety of applications, including:

* **Marine:** Outboard and inboard boats, fishing vessels, and workboats
* **Industrial:** Generators, welders, air compressors, and hydraulic pumps
* **Agricultural:** Tractors, harvesters, and other farm equipment
* **Construction:** Excavators, skid steers, and compactors

### Advantages

* **Reliable Performance:** Designed and built to withstand harsh operating conditions
* **Low Fuel Consumption:** Advanced fuel injection system optimizes fuel efficiency
* **Easy Maintenance:** Accessible design and major components facilitate maintenance
* **Versatile Applications:** Suitable for a wide range of marine, industrial, and agricultural applications
* **Global Support:** Backed by Yanmar's extensive dealer network and technical support

This Complete Factory Yanmar TNM Series - 3TNM68 and 3TNM72 Industrial Engine workshop service manual includes needed instructions to maintain, repair and service your engine using detailed diagrams and manufacturers specifications.

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Completely bookmarked & searchable chapters for easy navigation that allow you to identify the service repair procedures in the quickest time possible.

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* LANGUAGE: English
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* SEARCHABLE - BOOKMARKED - INDEXED

Comprehensive illustrations, exploded diagrams, drawings and photos guide you through the service repair procedures.

CONTENTS:
01- Introduction
02- Yanmar Warranties
03- Safety
04- General Service Information
05- Periodic Maintenance
06- Engine
07- Fuel System
08- Cooling System
09- Lubrication System
10- Starter Motor
11- Alternator
12- Electric Wiring
13- Troubleshooting

Technical details and step-by-step instructions you will need are included.

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