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Yanmar 4TNV106 Service Manual

Yanmar 4TNV106
394 pages
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0BTNV-G00101
PRINTED IN JAPAN
SERVICE MANUAL
SERVICE MANUAL
3TNV82A
3TNV82A-B
3TNV84
3TNV84T
3TNV84T-B
3TNV88
3TNV88-B
3TNV88-U
4TNV84
4TNV84T
4TNV84T-Z
4TNV88
4TNV88-B
4TNV88-U
4TNV94L
4TNV98
4TNV98-Z
4TNV98-E
4TNV98T
4TNV98T-Z
4TNV106
4TNV106T

Table of Contents

Other manuals for Yanmar 4TNV106

Questions and Answers:

Yanmar 4TNV106 Specifications

General IconGeneral
BrandYanmar
Model4TNV106
CategoryEngine
LanguageEnglish

Summary

Introduction

Introduction

Describes the service procedures for the TNV series direct injection engines.

Yanmar Warranties

Yanmar Limited Warranty

Details the warranty coverage, limitations, and owner's responsibilities for Yanmar engines.

Emission System Warranty

Outlines the warranty coverage for engine emission control systems, including periods and exclusions.

Safety

Safety Statements

Explains safety alert symbols (Danger, Warning, Caution) and their meanings for hazard communication.

Safety Precautions

Provides detailed safety warnings for various operational hazards like scald, explosion, and crush hazards.

General Service Information

Component Identification

Illustrates and lists the locations of major engine components for various TNV models.

Location of Labels

Shows the location of regulatory and safety labels on Yanmar TNV series engines.

Emission Control Regulations

Details EPA/ARB regulations and emission control labels found on Yanmar TNV engines.

Function of Major Engine Components

Describes the functions of key engine components like the air cleaner, alternator, and fuel filter.

Engine

Cylinder Head Specifications

Provides specifications for valve clearance, valve recession, and valve seat angles for 2-valve and 4-valve heads.

Crankshaft and Camshaft Components

Details specifications and inspection procedures for camshafts, idler gears, and crankshaft components.

Piston

Specifies dimensions and measurement locations for pistons, including outside diameter and position.

Piston Ring

Provides standard and limit dimensions for top, second, and oil piston rings for various models.

Fuel System

Fuel Injection Pump

Describes the MP fuel injection pump, its components, and important precautions for servicing.

Stop Solenoid

Explains the function and operation of the stop solenoid in the fuel injection pump.

Cold Start Device

Details the function of the cold start device (CSD) for improving low-temperature engine starting.

Fuel System Specifications

Provides special torque values for fuel system components and test/adjustment specifications.

Fuel Injectors

Removal of Fuel Injectors

Step-by-step instructions for removing fuel injectors from 2-valve and 4-valve cylinder heads.

Testing of Fuel Injectors

Procedures for testing fuel injector nozzle spray pattern and opening pressure using a tester.

Disassembly and Inspection of Fuel Injectors

Guides on cleaning, inspecting, and disassembling fuel injector components for wear or damage.

Adjusting Fuel Injector Pressure

Explains how to adjust the fuel injector pressure by adding or removing shims.

Cooling System

Introduction

Describes the procedures for servicing the 4TNV84 engine coolant pump.

Cooling System Diagram

Illustrates the flow of coolant through the engine's cooling system components.

Engine Coolant Pump Components

Identifies and lists the components of the engine coolant pump assembly.

Engine Coolant System Check

Provides instructions for checking the engine coolant system for leaks using a tester.

Lubrication System

Introduction

Describes procedures for servicing trochoid oil pumps for various TNV engine models.

Oil Pump Service Information

Details engine oil pressure specifications and clearance measurements for oil pumps.

Checking Engine Oil Pressure

Provides steps to check engine oil pressure using a mechanical gauge and troubleshooting low pressure.

Disassembly of Oil Pump

Step-by-step instructions for disassembling the trochoid oil pump assembly.

Turbocharger

Troubleshooting

Identifies common turbocharger problems like excessive exhaust smoke and suggests corrective actions.

Turbocharger Components

Illustrates and lists the individual components of the Yanmar turbocharger.

Turbocharger Component Functions

Explains the theory of operation and functions of key turbocharger components like turbine and compressor.

Washing Procedure

Details the procedure for cleaning the turbocharger compressor impeller using blower wash fluid or water.

Starter Motor

Starter Motor Information

Provides specifications for standard and optional starter motors used on 3TNV82A to 4TNV88 engines.

Starter Motor Specifications

Lists detailed technical specifications for a representative Yanmar starter motor model 129900-77010.

Starter Motor Troubleshooting

Provides a flowchart to diagnose common starter motor problems and their solutions.

Starter Motor Components

Illustrates and lists all components of the starter motor assembly.

Alternator

Alternator Specifications

Provides detailed specifications for Yanmar alternators and dynamos, including output and dimensions.

Alternator Troubleshooting

Offers a troubleshooting guide for common alternator issues based on battery indicator status and voltage readings.

Alternator Components

Illustrates and lists all the individual components of the Yanmar alternator assembly.

Alternator Wiring Diagram

Shows the electrical schematic for the alternator system, including key switch, battery, and load connections.

Electronic Control System

Engines available with the electronic control system

Lists the Yanmar engine models equipped with the electronic control system.

Before You Begin Servicing

Provides critical warnings and cautions regarding the servicing of electronic control system components like E-ECU.

Introduction

Describes the electronic engine control system, its components, and features like EGR and speed control.

Electronic control harness connections

Presents detailed wiring diagrams for the electronic control system harness connections.

Electric Wiring

Electric Wiring Precautions

Lists essential precautions to prevent electrical component failure and warranty issues.

Electrical Wire Resistance

Provides a table of wire resistance values based on AWG and metric nominal sizes.

Battery Cable Resistance

Details maximum allowable total battery cable length based on starter motor output and AWG size.

Electrical Wire Sizes - Voltage Drop

Offers guidance on selecting electrical wire sizes to minimize voltage drop based on current and length.

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