Cummins N14 Celect & Celect Plus Heavy Diesel Engine Overhaul Manual

Factory Workshop Reference • 100% Free ($0.00)

Cummins N14 (Celect, Celect Plus & Mechanical)

DISPLACEMENT

14.0 Litres (855 cu in) Inline-6

CYLINDER HEAD TORQUE

Step 1: 136 Nm / Step 2: 298 Nm / Step 3: +90°

COLD VALVE LASH

Inlet 0.36 mm (0.014 in) / Exhaust 0.69 mm (0.027 in)

OIL CAPACITY

38.0 Litres (10.0 US Gallons)

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View Full Torque Table ↓

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🔧 Complete Technical Specifications & Torque Sequences

Reference the OEM factory tightening torques, clearances, and operational parameters for Cummins N14 (Celect, Celect Plus & Mechanical) below:

📖 Workshop Service Manual Table of Contents

This unbundled factory manual covers full overhaul, diagnostic procedures, and disassembly protocols:

1. (‘Section 0: Engine Identification & General Specs’, ‘Data plate decoding, horsepower ratings (330HP to 525HP), and service tools.’)
2. (‘Section 1: Cylinder Block & Power Cylinder Overhaul’, ‘Liner shimming, counterbore cutting, piston ring staggering, and rod alignment.’)
3. (‘Section 2: Cylinder Head & Valve Train’, ‘Crosshead adjustment, valve guide knurling, spring tension, and head gasket installation.’)
4. (‘Section 3: Rocker Lever Assemblies & Cam Followers’, ‘Rocker bushing replacement, shaft oil passages, and push tube straightness.’)
5. (‘Section 4: Camshaft, Gears & Timing System’, ‘Accessory drive, front gear backlash (0.005 to 0.017 in), and thrust plate inspection.’)
6. (‘Section 5: Fuel System & Celect Electronic Injectors’, ‘ECM fuel supply manifold, actuator solenoid resistance, and high-pressure seals.’)
7. (‘Section 6: Lubrication System’, ‘High-capacity oil pump, combination full-flow/bypass filter head, and piston cooling nozzles.’)
8. (‘Section 7: Cooling System & Water Pump’, ‘Water pump impeller clearance, dual thermostat operation, and belt tensioners.’)
9. (‘Section 8: Air Intake & Holset Turbocharger’, ‘Wastegate calibration, charge air cooler pressure drop test, and intake manifold leaks.’)
10. (‘Section 9: Electrical, Diagnostic Codes & Troubleshooting’, ‘Celect fault code tables, sensor testing, and troubleshooting low power or misfire.’)