Detroit Diesel Series 60 OEM Service & Repair Manual
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SERIES 60 SERVICE MANUAL
ABSTRACT
This manual provides instruction for servicing on-highway applications of the Detroit Diesel
Series 60 Diesel and Natural Gas-Fueled Engines.
Specifically a basic overview of each major component and system along with recommendations
for removal, cleaning, inspection, criteria for replacement, repair and installation and mechanical
troubleshooting are contained in this manual.
DDEC III/IV troubleshooting concerns are contained in the DDEC III/IV Single ECM
Troubleshooting Guide, 6SE497.
DDEC V troubleshooting concerns are contained in the DDEC V Troubleshooting Guide, 6SE570.
All information subject to change without notice. (Rev. 2005)
6SE483 0507 Copyright © 2005 DETROIT DIESEL CORPORATION i
SERIES 60 SERVICE MANUAL
ENGINE EXHAUST
Consider the following before servicing engines:
PERSONAL INJURY
Diesel engine exhaust and some of its constituents are
known to the State of California to cause cancer, birth
defects, and other reproductive harm.
□ Always start and operate an engine in a well ventilated
area.
□ If operating an engine in an enclosed area, vent the
exhaust to the outside.
□ Do not modify or tamper with the exhaust system or
emission control system.
(Rev. 2005) All information subject to change without notice.
ii 6SE483 0507 Copyright © 2005 DETROIT DIESEL CORPORATION
SERIES 60 SERVICE MANUAL
REVISION NOTIFICATION
Modifications to this manual are announced in the form of Service Information
Bulletins. The bulletins include attachment pages and are posted on the World Wide Web
(www.detroitdiesel.com/svc/sibindex.htm).
Revisions to this manual will be sent marked with a revision bar (see Example 2). Sections
containing revisions will have a third line in the page footer (compare Examples 1 and 2).
All information subject to change without notice. (Rev. 2005)
6SE483 0507 Copyright © 2005 DETROIT DIESEL CORPORATION iii
SERIES 60 SERVICE MANUAL
(Rev. 2005) All information subject to change without notice.
iv 6SE483 0507 Copyright © 2005 DETROIT DIESEL CORPORATION
SERIES 60 SERVICE MANUAL
TABLE OF CONTENTS
GENERAL INFORMATION ...................................................................... 1
SCOPE AND USE OF THIS MANUAL .................................................... 3
CLEARANCE OF NEW PARTS AND WEAR LIMITS .............................. 3
THE FOUR CYCLE PRINCIPLE FOR DIESEL ENGINES ...................... 4
FOUR CYCLE PRINCIPLE FOR NATURAL GAS ENGINES .................. 6
GENERAL DESCRIPTION ...................................................................... 8
GENERAL SPECIFICATIONS ................................................................. 14
GENERAL SPECIFICATIONS FOR THE SERIES 60G ENGINE ............ 15
ENGINE MODEL, SERIAL NUMBER AND OPTION LABEL ................... 16
ENGINE MODEL, SERIAL NUMBER AND OPTION LABEL (SERIES
60G ENGINE) .......................................................................................... 19
REPLACING AND REPAIRING ............................................................... 20
DISASSEMBLY ........................................................................................ 20
CLEANING ............................................................................................... 21
SAFETY PRECAUTIONS ....................................................................... 27
FLUOROELASTOMER (VITON) CAUTION ............................................. 40
ENGINE VIEWS ....................................................................................... 41
ENGLISH TO METRIC CONVERSION .................................................... 46
DECIMAL AND METRIC EQUIVALENTS ................................................ 47
SPECIFICATIONS ................................................................................... 48
1 ENGINE
1.1 CYLINDER BLOCK AND CYLINDER LINER .......................................... 1-3
1.2 CYLINDER HEAD .................................................................................... 1-30
1.3 VALVE AND INJECTOR OPERATING MECHANISM .............................. 1-60
1.4 VALVES, SPRINGS, GUIDES, INSERTS, SEALS AND ROTATORS ...... 1-79
1.5 ENGINE LIFTER BRACKETS .................................................................. 1-106
1.6 ROCKER COVER .................................................................................... 1-111
1.7 CRANKSHAFT ........................................................................................ 1-129
1.8 CRANKSHAFT OIL SEALS ..................................................................... 1-150
1.9 CRANKSHAFT MAIN BEARINGS ........................................................... 1-164
1.10 GEAR CASE COVER PRE-EXHAUST GAS RECIRCULATION (EGR) .. 1-175
1.11 GEAR CASE COVER EXHAUST GAS RECIRCULATION (EGR)
MODEL .................................................................................................... 1-190
1.12 GEAR CASE PRE-EXHAUST GAS RECIRCULATION (EGR) ................ 1-210
1.13 GEAR CASE EXHAUST GAS RECIRCULATION (EGR) MODEL ........... 1-231
1.14 CRANKSHAFT VIBRATION DAMPER .................................................... 1-242
1.15 CRANKSHAFT PULLEY .......................................................................... 1-252
1.16 FLYWHEEL ............................................................................................. 1-266
1.17 RING GEAR ............................................................................................. 1-275
1.18 FLYWHEEL HOUSING ............................................................................ 1-277
1.19 PISTON AND PISTON RING ................................................................... 1-285
All information subject to change without notice. (Rev. 2005)
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1.20 ONE-PIECE PISTON ASSEMBLY AND PISTON RING .......................... 1-306
1.21 PISTON AND CONNECTING ROD ASSEMBLY ..................................... 1-318
1.22 CONNECTING ROD ................................................................................ 1-345
1.23 CYLINDER LINER ................................................................................... 1-360
1.24 GEAR TRAIN AND ENGINE TIMING ...................................................... 1-373
1.25 COMPACT GEAR TRAIN AND ENGINE TIMING ................................... 1-399
1.26 CAMSHAFT GEAR ASSEMBLY SERIES 60 EXHAUST GAS
RECIRCULATION (EGR) MODEL ........................................................... 1-418
1.27 THRUST PLATE PERIMETER SEAL ...................................................... 1-445
1.28 CAMSHAFT AND CAMSHAFT BEARING ............................................... 1-458
1.29 CAMSHAFT DRIVE GEAR ...................................................................... 1-490
1.30 ADJUSTABLE IDLER GEAR ASSEMBLY ............................................... 1-503
1.31 ADJUSTABLE IDLER GEAR COMPACT GEAR TRAIN .......................... 1-512
1.32 BULL GEAR AND CAMSHAFT IDLER GEAR FOR THE COMPACT
GEAR TRAIN ........................................................................................... 1-518
1.33 BULL GEAR AND CAMSHAFT IDLER GEAR ASSEMBLY ..................... 1-525
1.34 CRANKSHAFT TIMING GEAR AND TIMING WHEEL ............................ 1-538
1.35 ACCESSORY DRIVE ............................................................................... 1-557
1.36 JAKE BRAKE ........................................................................................... 1-585
1.A ADDITIONAL INFORMATION .................................................................. 1-639
2 FUEL SYSTEM
2.1 DIESEL FUEL SYSTEM OVERVIEW ...................................................... 2-5
2.2 VEHICLE SAFETY FOR THE NATURAL GAS ENGINE ......................... 2-7
2.3 N2 ELECTRONIC UNIT INJECTOR ....................................................... 2-11
2.4 N2 FUEL INJECTOR TUBE AND O-RING .............................................. 2-28
2.5 N3 ELECTRONIC UNIT INJECTOR ....................................................... 2-42
2.6 N3 FUEL INJECTOR TUBE .................................................................... 2-55
2.7 FUEL PUMP WITH SEPARATE DRIVE SHAFT AND HUB ..................... 2-58
2.8 FUEL PUMP WITH ONE-PIECE DRIVE SHAFT AND HUB ASSEMBLY 2-79
2.9 FUEL PUMP DRIVE ................................................................................. 2-99
2.10 DIESEL FUEL FILTERS (SPIN-ON) ........................................................ 2-104
2.11 FUEL PRO 380/380E FUEL FILTER SYSTEM ........................................ 2-112
2.12 FUEL FILTER TYPE FOR THE SERIES 60G ENGINE ........................... 2-118
2.13 ASSEMBLY FUEL FILTER AND WATER SEPARATOR .......................... 2-126
2.14 ELECTRONIC ENGINE CONTROL ......................................................... 2-133
2.15 DDEC V ELECTRONIC CONTROL UNIT ............................................... 2-135
2.16 DDEC III/IV ELECTRONIC CONTROL MODULE ................................... 2-141
2.17 DDEC II ELECTRONIC CONTROL MODULE ......................................... 2-149
2.18 DDEC I ..................................................................................................... 2-159
2.19 PROGRAMMABLE READ-ONLY MEMORY (PROM) DDEC I ............... 2-165
2.20 ELECTRONIC DISTRIBUTOR UNIT DDEC I ......................................... 2-169
2.21 ELECTRONIC FOOT PEDAL ASSEMBLY ............................................. 2-172
2.22 TURBO SPEED SENSOR (TSS) ............................................................. 2-173
2.23 TURBO BOOST PRESSURE SENSOR .................................................. 2-177
2.24 AIR INTAKE PRESSURE SENSOR ......................................................... 2-179
2.25 OIL PRESSURE SENSOR ..................................................................... 2-181
(Rev. 2005) All information subject to change without notice.
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SERIES 60 SERVICE MANUAL
2.26 OIL TEMPERATURE SENSOR .............................................................. 2-183
2.27 AIR TEMPERATURE SENSOR ............................................................... 2-185
2.28 AIR TEMPERATURE SENSOR FOR HIGH PRESSURE FUEL
SYSTEM .................................................................................................. 2-188
2.29 COOLANT TEMPERATURE SENSOR .................................................... 2-190
2.30 SYNCHRONOUS REFERENCE SENSOR GEAR CASE MOUNTED .... 2-192
2.31 SYNCHRONOUS REFERENCE SENSOR \ CAMSHAFT POSITION
SENSOR CAMSHAFT GEAR COVER MOUNTED ................................. 2-194
2.32 TIMING REFERENCE SENSOR ............................................................ 2-197
2.33 COOLANT LEVEL SENSOR .................................................................. 2-199
2.34 FUEL PRESSURE SENSOR .................................................................. 2-203
2.35 FUEL TEMPERATURE SENSOR ........................................................... 2-205
2.36 EXHAUST GAS OXYGEN SENSOR FOR SERIES 60G ENGINES ....... 2-208
2.37 EXHAUST TEMPERATURE SENSOR FOR THE SERIES 60G
ENGINES ................................................................................................. 2-211
2.38 KNOCK SENSOR AND SIGNAL NOISE ENHANCEMENT FILTER
MODULE .................................................................................................. 2-212
2.39 BAROMETRIC PRESSURE SENSOR FOR THE SERIES 60G ENGINE
WITH HIGH PRESSURE FUEL SYSTEM .............................................. 2-215
2.40 OVERVIEW OF HIGH PRESSURE FUEL SYSTEM FOR SERIES 60G
ENGINES ................................................................................................. 2-217
2.41 FUEL PRESSURE GAGES FOR THE SERIES 60G ENGINE WITH A
HIGH PRESSURE FUEL SYSTEM ......................................................... 2-223
2.42 VENTING AND LEAK CHECKING PROCEDURES FOR A NATURAL
GAS ENGINE (HIGH PRESSURE SYSTEM) ......................................... 2-225
2.43 HIGH PRESSURE FUEL REGULATOR FOR THE SERIES 60G
ENGINE ................................................................................................... 2-229
2.44 PULSE WIDTH MODULATED STEPPER MOTOR VALVE (PSV) FOR
SERIES 60G AUTOMOTIVE ENGINES .................................................. 2-231
2.45 FUEL MIXER FOR THE SERIES 60G HIGH PRESSURE FUEL SYSTEM
.................................................................................................................. 2-234
2.46 FUEL SHUTOFF VALVE FOR SERIES 60G ENGINE WITH HIGH
PRESSURE FUEL SYSTEM ................................................................... 2-237
2.47 IMPCO LOW PRESSURE FUEL REGULATOR FOR THE SERIES 60G
ENGINE HIGH PRESSURE FUEL SYSTEM .......................................... 2-239
2.48 OVERVIEW OF THE LOW PRESSURE NATURAL GAS FUEL
SYSTEM .................................................................................................. 2-243
2.49 LOW PRESSURE FUEL REGULATOR FOR THE SERIES 60G
ENGINE ................................................................................................... 2-248
2.50 FUEL MIXER FOR THE SERIES 60G LOW PRESSURE SYSTEM ....... 2-252
2.51 VENTING AND LEAK CHECKING PROCEDURES FOR NATURAL GAS
ENGINE (LOW PRESSURE SYSTEM) .................................................. 2-255
2.A ADDITIONAL INFORMATION .................................................................. 2-257
3 LUBRICATION SYSTEM
3.1 OVERVIEW OF LUBRICATING SYSTEM ............................................... 3-3
3.2 OIL PUMP ................................................................................................ 3-8
All information subject to change without notice. (Rev. 2005)
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SERIES 60 SERVICE MANUAL
3.3 OIL PRESSURE REGULATOR VALVE ................................................... 3-21
3.4 OIL PRESSURE RELIEF VALVE ............................................................. 3-28
3.5 OIL FILTER .............................................................................................. 3-34
3.6 OIL FILTER ADAPTOR ............................................................................ 3-36
3.7 THERMATIC OIL CONTROL VALVE ....................................................... 3-41
3.8 OIL COOLER (1991 AND LATER ENGINES) .......................................... 3-49
3.9 OIL COOLER (PRE-1991 ENGINES) ...................................................... 3-59
3.10 OIL LEVEL DIPSTICK ASSEMBLY ......................................................... 3-69
3.11 OIL PAN ................................................................................................... 3-74
3.12 VENTILATING SYSTEM .......................................................................... 3-82
3.A ADDITIONAL INFORMATION .................................................................. 3-91
4 COOLING SYSTEM
4.1 COOLING SYSTEM OVERVIEW ............................................................. 4-3
4.2 WATER PUMP (GEAR-CASE MOUNTED - 1991 AND LATER) (GCM) .. 4-7
4.3 WATER PUMP (FRONT MOUNTED) (FM) .............................................. 4-33
4.4 THERMOSTAT ........................................................................................ 4-58
4.5 COOLANT PRESSURE CONTROL CAP ................................................ 4-69
4.6 ENGINE COOLING FAN .......................................................................... 4-72
4.7 COOLANT FILTER AND CONDITIONER ................................................ 4-82
4.8 RADIATOR ............................................................................................... 4-84
4.A ADDITIONAL INFORMATION .................................................................. 4-85
5 FUEL, LUBRICATING OIL, AND COOLANT
5.1 FUEL ........................................................................................................ 5-3
5.2 LUBRICATING OIL (DIESEL) .................................................................. 5-10
5.3 LUBRICATING OIL FOR THE SERIES 60G ENGINE ............................. 5-15
5.4 COOLANT ................................................................................................ 5-17
6 AIR INTAKE SYSTEM
6.1 AIR INTAKE SYSTEM OVERVIEW ......................................................... 6-3
6.2 AIR CLEANER ......................................................................................... 6-7
6.3 INTAKE MANIFOLD ................................................................................. 6-9
6.4 CLOSED CRANKCASE BREATHER FOR SERIES 60G AUTOMOTIVE
ENGINES ................................................................................................. 6-18
6.5 TURBOCHARGER (DIESEL) .................................................................. 6-20
6.6 TURBOCHARGER SERIES 60 NATURAL GAS (AUTOMOTIVE)
ENGINE ................................................................................................... 6-43
6.7 RECIRCULATION VALVE FOR SERIES 60G AUTOMOTIVE ENGINE .. 6-61
6.8 CHARGE AIR COOLER ........................................................................... 6-63
6.9 THROTTLE ACTUATOR FOR THE SERIES 60G ENGINE .................... 6-72
6.10 AIR DRYER .............................................................................................. 6-76
6.A ADDITIONAL INFORMATION .................................................................. 6-77
7 EXHAUST SYSTEM
7.1 OVERVIEW OF EXHAUST MANIFOLD COMPONENTS ........................ 7-3
7.2 THREE-PIECE EXHAUST MANIFOLD WITH FEY RINGS ..................... 7-7
7.3 THREE-PIECE EXHAUST MANIFOLD WITHOUT FEY RINGS ............. 7-16
7.4 THREE-PIECE EXHAUST MANIFOLD WITH HEAT SHIELD ................. 7-23
(Rev. 2005) All information subject to change without notice.
viii 6SE483 0507 Copyright © 2005 DETROIT DIESEL CORPORATION
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Detroit Diesel Series 60 OEM Service & Repair Manual
Engine Models Covered:
- Detroit Diesel Series 60 Diesel Engines
- Detroit Diesel Series 60G Natural Gas-Fueled Engines
Engine Variants:
- 11.1L Inline-6 Diesel
- 12.7L Inline-6 Diesel
- 12.7L Inline-6 Natural Gas
- 14.0L Inline-6 Diesel
Control Systems:
-
DDEC I, II, III, IV, V (Detroit Diesel Electronic Controls)
The Detroit Diesel Series 60 OEM Service & Repair Manual is the official factory-issued guide for servicing, maintaining, and repairing the Series 60 Diesel and Natural Gas Engines. Designed for professional mechanics, fleet operators, and engine rebuilders, this manual provides detailed step-by-step procedures, technical specifications, and troubleshooting guidelines to ensure optimal performance and reliability.
Contents Overview:
- General Information & Specifications – Engine identification, serial number decoding, torque settings, and maintenance schedules.
- Complete Engine Overhaul & Component Servicing – Disassembly, cleaning, inspection, and reassembly of the cylinder head, crankshaft, camshaft, pistons, injectors, and valve train.
- Fuel System & Injection – Electronic unit injectors (EUI), fuel pump maintenance, fuel filter replacement, and troubleshooting injection-related issues.
- Electronic Control Systems – Diagnostic and servicing procedures for DDEC I, II, III, IV, and V, including sensor testing, programming, and fault code analysis.
- Lubrication & Cooling Systems – Oil pump servicing, oil pressure testing, coolant system components, and radiator maintenance.
- Turbocharging & Air Intake Systems – Turbocharger inspection, charge air cooler maintenance, and intake manifold servicing.
- Exhaust & Emissions Systems – Exhaust routing, emission control components, and maintenance of exhaust gas recirculation (EGR) systems.
- Electrical Systems & Diagnostics – Alternator, starter motor, battery maintenance, and wiring harness troubleshooting.
- Power Take-Off (PTO) & Special Configurations – Coverage of front-mounted and rear-engine PTO options.
- Operation & Preventive Maintenance – Manufacturer-recommended service intervals, troubleshooting procedures, and startup guidelines.
- Storage & Long-Term Preservation – Proper steps for engine storage, fluid protection, and reactivation procedures.
This OEM Detroit Diesel manual is a must-have for professional diesel technicians, fleet service departments, and Series 60 engine owners who demand factory-accurate service and repair procedures. Whether you're performing routine maintenance, engine diagnostics, or complete overhauls, this manual ensures Detroit Diesel Series 60 engines are properly serviced and kept in peak condition.
Printable: Yes
Language: English
Compatibility: Pretty much any electronic device, incl. PC & Mac computers, Android and Apple smartphones & tablet, etc.
Requirements: Adobe Reader (free)
