CUMMINS N14 Shop Manual

CUMMINS
Engine
đź“–  Manuals supported for 2 models of CUMMINS
  • N14 Celect Plus
  • N14330E
Table of Contents
  • Group system exploded diagram

    4
  • General safety instructions

    8
  • Engine identification

    16
  • General cleaning instructions

    20
  • Section 0 - Engine Disassembly and Assembly - Group 00

    21
  • Engine disassembly and assembly - service tools

    25
  • Engine disassembly and assembly - general information

    29
  • Engine - preparation for cleaning

    30
  • Coolant - drainage

    31
  • Crankcase breather - removal

    32
  • Alternator Belts - Removal

    33
  • Alternator - Removal

    34
  • Dipstick tube and housing - removal

    35
  • Water header covers - removal

    36
  • Flywheel - removal

    38
  • Flywheel housing - removal

    39
  • Rear cover - removal

    40
  • Water pump belt - removal

    41
  • Air Compressor Coolant Inlet and Outlet Tubes - Removal

    42
  • Accessory Drive Pulley - Removal

    43
  • Stc external oil plumbing - removal

    44
  • Stc oil control valve - removal

    45
  • Celect™ sensor harness - removal

    47
  • Celect™ ambient air pressure sensor - removal

    48
  • Celect™ lubricating oil pressure sensor - removal

    49
  • Stc engines

    50
  • Accessory Drive - Removal

    51
  • Lubricating oil pump - removal

    52
  • Celect™ intake air temperature sensor - removal

    53
  • Rocker housing covers - removal

    54
  • Valve crossheads - removal

    55
  • Rocker lever housing - removal

    56
  • Fuel crossovers - removal

    57
  • Cam Follower Assemblies - Removal

    58
  • Accessory Drive Seal - Removal

    59
  • Cylinder liners - removal

    62
  • Crankshaft - removal

    64
  • Cylinder block - removal from the rebuild stand

    66
  • Crankshaft - installation

    68
  • Cylinder liners - installation

    77
  • Rear cover - installation

    85
  • Crankshaft seal, rear - installation

    86
  • Flywheel housing - installation

    87
  • Flywheel - installation

    92
  • Cylinder heads - installation

    96
  • Camshaft - Installation

    98
  • Cam Follower Assemblies - Installation

    100
  • Timing tool installation

    102
  • Accessory Drive - Installation

    109
  • Celect™ engine position sensor (eps) - installation

    111
  • Gear cover - installation

    112
  • Camshaft Bearing Support - Installation

    114
  • Accessory Drive Seal - Installation

    116
  • Accessory Drive Pulley - Installation

    117
  • Lubricating oil pan - installation

    118
  • Injectors - installation

    120
  • Push tubes - installation

    122
  • Valve crossheads - installation

    123
  • Rocker lever shaft assemblies - installation

    124
  • Injector and valve adjustment

    125
  • Engine brake - installation

    135
  • C-brake - alternate method

    138
  • Jacobs brake

    139
  • Intake manifold - installation

    140
  • Celect™ intake air temperature sensor - installation

    141
  • Lubricating oil pump signal line - installation

    142
  • Fuel tubing - installation

    143
  • Air Compressor - Installation

    144
  • Celect™ lubricating oil pressure sensor - installation

    146
  • Stc oil control valve - installation

    149
  • Vibration damper - installation

    151
  • Water pump - installation

    153
  • Water pump belt - installation and adjustment

    154
  • Air Compressor Coolant Inlet and Outlet Tubes - Installation

    155
  • Fan hub and fan hub support bracket - installation

    156
  • Fan belts - installation and adjustment

    157
  • Engine - removal from the rebuild stand

    158
  • Piston cooling nozzles - installation

    159
  • Water header covers - installation

    160
  • Lubricating oil cooler assembly - installation

    161
  • Alternator - Installation

    162
  • Fan and fan spacer - installation

    163
  • Starting motor - installation

    164
  • Turbocharger - installation

    165
  • Crankcase breather tube - installation

    167
  • Engine - covering all openings

    168
  • Section 1 - Cylinder Block - Group 01

    169
  • Cylinder block - service tools

    171
  • Cylinder block - exploded view

    174
  • Cylinder block - general information

    176
  • Cam bore rear cup plug - removal

    177
  • Dowel pin - removal

    178
  • Camshaft bushings - removal

    179
  • Camshaft bore - cleaning

    183
  • Cylinder block - inspection

    188
  • Coolant passage - inspection

    189
  • Coolant passage - repairing

    191
  • Cylinder head capscrew holes - repairing

    194
  • Camshaft bushings - installation

    198
  • Dowel pin - installation

    202
  • Cam bore rear cup plug - installation

    204
  • Pistons - cleaning and inspection

    209
  • Connecting rod ring dowels - removal

    215
  • Alignment - inspection

    216
  • Twist - inspection

    217
  • Crankshaft - cleaning and inspection

    222
  • Main bearings - cleaning

    230
  • Thrust bearings - inspection

    231
  • Gear cover - cleaning and inspection

    237
  • Accessory drive bushing - replacement

    239
  • Rear cover - cleaning and inspection

    240
  • Magnetic crack inspection

    242
  • Cylinder head - service tools

    244
  • Cylinder head - exploded view

    248
  • Cylinder head - general information

    249
  • Grinding the valve seats

    259
  • Cylinder head - grinding the valves

    271
  • Cylinder head - pressure testing

    277
  • Rocker lever housing assembly - service tools

    286
  • Rocker lever housing assembly - general information

    291
  • Rocker lever bushing - replacement

    296
  • Ring and pin dowel - replacement

    304
  • Cam follower assembly - service tools

    308
  • Cam follower assembly - exploded view

    309
  • Cam follower assembly - general information

    310
  • Cam follower assembly - rebuild

    313
  • Inspection - magnetic crack

    319
  • Cam follower socket - replacement

    323
  • Fuel pump - general information

    327
  • Cleaning - pt fuel pump

    328
  • Cleaning - celect™ fuel pump

    329
  • Section 6 - Injectors and Fuel Lines - Group 06

    334
  • Injector - celect™ - exploded view

    337
  • Injectors - pt (type d) step timing control (stc) - general information

    338
  • Cleaning - stc

    339
  • Inspection - celect

    340
  • Stc oil control valve - cleaning

    341
  • Lubricating oil system - service tools

    344
  • Lubricating oil system - exploded view

    345
  • Lubricating oil pump assembly - exploded view

    346
  • Lubricating oil system - general information

    349
  • Lubricating oil dipstick - calibration

    351
  • Testing - oil cooler core

    375
  • Testing - oil cooler bypass valve

    376
  • Testing - lubricating oil filter bypass valve poppet valve spring

    377
  • Installation - oil cooler core

    378
  • Installation - lubricating oil filter bypass valve

    380
  • Drive units - service tools

    406
  • Accessory drive - exploded view

    407
  • Drive units - general information

    408
  • Accessory drive gear - replacement

    414
  • Intake air system - service tools

    421
  • Intake air system - exploded view

    422
  • Exhaust system - exploded view

    429
  • Exhaust system - general information

    430
  • Mounting hole threads - inspection

    432
  • Air compressor

    434
  • Electrical equipment - general information

    438
  • Wiring diagrams

    439
  • Section 14 - Engine Testing - Group 14

    441
  • General information

    442
  • Definition of terms on engine performance curve

    443
  • General run-in procedures

    444
  • General engine test/run-in specifications

    446
  • Engine testing - service tools

    447
  • Engine dynamometer - install engine

    449
  • Fuel pressure

    453
  • Electronic hookup - celect™ engines only

    454
  • Lubricating oil system priming

    458
  • Fuel system priming - pt system

    462
  • Fuel system priming - celect™ system

    463
  • Dynamometer worksheet

    468
  • Chassis dynamometer operation

    469
  • Fuel pressure (stc engines only)

    472
  • Intake manifold pressure

    474
  • Charge air cooler restriction

    475
  • Exhaust air restriction

    476
  • Lubricating oil pressure

    477
  • Engine painting

    482
  • Remove the engine from short term storage

    485
  • Remove the engine from long term storage

    487
  • Mounting adaptations - service tools

    493
  • Mounting adaptations - exploded view

    494
  • Mounting adaptations - general information

    495
  • Flywheel ring gear - replacement

    497
  • Front engine support bracket - cleaning and inspection for reuse

    504
  • Capscrew markings and torque values

    509