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4TNE98
Yanmar 4TNE98 Manuals
Manuals and User Guides for Yanmar 4TNE98. We have
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Yanmar 4TNE98 manual available for free PDF download: Service Manual
Yanmar 4TNE98 Service Manual (246 pages)
(4TNV98 : EM0Q3, EM0Q4, EM0Q5); (4TNE98 : EM0QC, EM0QD, EM0QE)
Brand:
Yanmar
| Category:
Engine
| Size: 9.51 MB
Table of Contents
Section 1. General Service Section 2. Periodic Maintenance Information
5
Important Safety Information
3
Table of Contents
5
Component Identification
9
Emission Control Regulations
10
Epa / Arb Regulations - Usa Only
10
Location of Labels
10
Engine Nameplate (Typical)
10
Emission Control Labels
11
Engine Family
11
Function of Major Engine Components
12
Function of Cooling System Components
13
Diesel Fuel
14
Diesel Fuel Specifications
14
Filling the Fuel Tank
15
Priming the Fuel System
17
Engine Oil
18
Engine Oil Specifications
18
Engine Oil Viscosity
18
Checking Engine Oil
19
Adding Engine Oil
19
Engine Oil Capacity (Typical)
19
Engine Coolant
20
Engine Coolant Specifications
21
Filling Radiator with Engine Coolant
21
Engine Coolant Capacity (Typical)
22
Description of Model Number
22
Engine General Specifications
23
Principal Engine Specifications
24
Tnv98 Epa Tier
24
TNE98 EPA Tier 3
25
Engine Service Standards
26
Tightening Torques for Standard Bolts and Nuts
27
Abbreviations and Symbols
29
Unit Conversions
30
Units of Torque
30
Unit Prefixes
30
Units of Length
30
Units of Pressure
30
Units of Volume
30
Units of Power
30
Units of Mass
30
Units of Force
30
Units of Temperature
30
Section 2. Periodic Maintenance
31
Introduction
42
Performing Periodic Maintenance
42
Yanmar Replacement Parts
42
Periodic Maintenance Schedule
43
Periodic Maintenance Procedures
45
Daily
47
After Initial 50 Hours of Operation
47
Every 50 Hours of Operation
50
Every 250 Hours of Operation
53
Every 500 Hours of Operation
56
Every 1000 Hours of Operation
61
Every 1500 Hours of Operation
63
Every 2000 Hours of Operation
64
Before You Begin Servicing
65
Introduction
68
Cylinder Head Specifications
68
Adjustment Specifications
68
Intake / Exhaust Valve and Guide Cont
69
Push Rod
70
Rocker Arm and Shaft
70
Valve Spring
70
Camshaft and Timing Gear Train Specifications
70
Idler Gear Shaft and Bushing
71
Timing Gear Backlash
71
Crankshaft and Piston Specifications
72
Thrust Bearing
72
Piston
73
Connecting Rod
74
Cylinder Block Specifications
75
Special Torque Chart
75
Torque for Bolts and Nuts
75
Special Service Tools
77
Measuring Instruments
79
Cylinder Head
82
Cylinder Head Components
82
Disassembly of 4-Valve Cylinder Head
84
TNE98 Engine
89
Disassembly of Cylinder Head
91
Cleaning of Cylinder Head Components
94
Reassembly of Cylinder Head
100
Measuring and Adjusting Valve Clearance
106
TNE98 Engine
107
TNV98 Engine
108
Crankshaft and Camshaft Components
111
Disassembly of Camshaft and Timing
113
Disassembly of Engine
113
Table of Contents
116
Figure
117
Components
118
Disassembly of Crankshaft and Piston
118
Figure
118
Figure
121
Components
122
Inspection of Crankshaft and Camshaft
122
Honing and Boring
128
Components
129
Reassembly of Crankshaft and Piston
129
Components
138
Reassembly of Camshaft and Timing
138
Final Reassembly of Engine
140
Before You Begin Servicing
141
Section 4. Fuel System
141
Method B : Use a Feeler Gauge to Measure the
121
See Thrust Bearing on Page 70 for the Service
121
Tnv98 Engine
143
Cold Start Device
144
Stop Solenoid
144
Trochoid Fuel Pump
144
Fuel System Specifications
145
Test and Adjustment Specifications
146
Special Service Tools
147
Fuel System Diagram
148
Fuel System Components
149
Valve Cylinder Head
149
Fuel Injection Pump
150
Removal of Fuel Injection Pump
150
Installation of Fuel Injection Pump
154
Checking and Adjusting Fuel Injection Timing
159
Determining Fuel Injection Timing Specification
159
Checking Fuel Injection Timing
160
Adjusting Fuel Injection Timing
163
Fuel Injectors
165
Removal of Fuel Injectors
165
Testing of Fuel Injectors
166
Injectors
167
Adjusting Fuel Injector Pressure
168
Installation of the Fuel Injectors
169
Reassembly of Fuel Injectors
169
Fuel System Special Torque Chart
170
Tne98 Engine
170
Fuel System Components
171
Fuel System Components
172
Pump
173
Overview
174
Plunger Operation
177
Process
178
Fuel Injection Volume Adjustment Mechanism
180
Delivery Valve Assembly
181
All - Speed Governor
182
At Start of Engine
184
During Idling
185
At Full-Load Maximum Speed Control
186
At No-Load Maximum Speed Control
187
Standard Type Automatic Timer
189
Structure and Operation of Timer
189
Magnetic Valve (Stop Solenoid)
190
Removal of Fuel Injection Pump
191
Table of Contents
192
Figure
194
Installation of the Fuel Injection Pump
194
Checking / Adjustment of Fuel Injection Timing
196
Caution
198
Servicing the Fuel Injectors
198
Removal of the Fuel Injectors
198
Judgement Criteria on Atomization Condition
201
Installation of Fuel Injectors
202
Section 5. Cooling System
203
Before You Begin Servicing
203
Carefully Rotate the Alternator Toward the Cylinder Block While Loosening the V-Belt
204
Failure to Comply May Result in Minor or
204
Moderate Injury
204
Pinch Hazard
204
Figure
205
Cooling System Diagram
205
Introduction
205
Engine Coolant Pump Components
206
Figure
206
Engine Coolant Pump
207
Engine Coolant System Check
207
Removal of Engine Coolant Pump
207
Disassembly of Engine Coolant Pump
209
Installation of Engine Coolant Pump
210
Reassembly of Engine Coolant Pump
210
Before You Begin Servicing
212
Section 6. Lubrication System
212
Introduction
214
Oil Pump Service Information
214
Lubrication System Diagram
216
Checking Engine Oil Pressure
217
Trochoid Oil Pump
217
Oil Pump Components
217
Disassembly of Oil Pump
218
Reassembly of Oil Pump
219
Before You Begin Servicing
221
Section 7. Starter Motor
221
Introduction
223
Starter Motor Information
223
Starter Motor Specifications
224
Starter Motor Troubleshooting
225
Starter Motor Components
226
Starter Motor
227
Disassembly of Starter Motor
227
Removal of Starter Motor
227
Cleaning and Inspection
229
Reassembly of Starter Motor
234
Check Pinion Projection Length
235
Installation of Starter Motor
236
No-Load Test
236
Special Service Tools
237
Section 8. Troubleshooting
237
Compression Pressure Measurement
238
Troubleshooting by Measuring Compression Pressure
238
Quick Reference Table for Troubleshooting
241
Troubleshooting Charts
242
Wiring Diagram
245
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