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ENGINE SERVICE MANUAL
®
Navistar
N13 with SCR
Navistar, Inc.
2701 Navistar Drive, Lisle, IL 60532 USA
© 2014 Navistar, Inc. All rights reserved. All marks are trademarks of their respective owners.

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Summary of Contents for Navistar N13

  • Page 1 ENGINE SERVICE MANUAL ® Navistar N13 with SCR Navistar, Inc. 2701 Navistar Drive, Lisle, IL 60532 USA © 2014 Navistar, Inc. All rights reserved. All marks are trademarks of their respective owners.
  • Page 3 Summary of Changes Section Updated Description Engine Systems Inserted updated Engine Systems section taken from 0000002161R9 Inlet Air Heater System • Installation procedure updated to reflect correct installation of the IAHFI in the air intake throttle duct. Engine Electrical Added following new sections: •...
  • Page 5 ® Navistar N13 Engine Brake by Jacobs................383 Cylinder Head, Camshaft and Valve Train.
  • Page 6 ENGINE SERVICE MANUAL Appendix A – Specifications..................537 Appendix B –...
  • Page 7 (EPA 10) ® This Engine Service Manual provides a general Navistar N13 with SCR Hard Start and No Start sequence of procedures for out-of-chassis engine Diagnostics Form (EPA 10) overhaul (removal, inspection, and installation). For N13 with SCR Performance Diagnostics Form...
  • Page 8 ENGINE SERVICE MANUAL Service Diagnosis • Knowledge of the principles of operation for engine application and engine systems. Service diagnosis is an investigative procedure that • Knowledge to understand and do procedures in must be followed to find and correct an engine diagnostic and service publications.
  • Page 9 ENGINE SERVICE MANUAL Safety Information • Do not wear rings, watches or other jewelry. • Restrain long hair. This manual provides general specific maintenance procedures essential for reliable engine Vehicle operation and your safety. Since many variations in • Shift transmission to park or neutral, set parking procedures, tools, and service parts are involved, brake, and block wheels before doing diagnostic advice for all possible safety conditions and hazards...
  • Page 10 ENGINE SERVICE MANUAL • Protect your eyes. • Check for frayed or damaged power cords before using power tools. • Do not expose batteries to flames or sparks. Fluids Under Pressure • Do not smoke in workplace. • Use extreme caution when working on systems Compressed Air under pressure.
  • Page 11: Table Of Contents

    ENGINE SYSTEMS Table of Contents Engine Identification.....................7 Engine Serial Number.
  • Page 12 ENGINE SYSTEMS Coolant Control Valve (CCV) assembly operation............40 Engine Brake System.
  • Page 13: Engine Identification

    Engine family, model, and displacement • Advertised brake horsepower and torque rating Engine Serial Number Codes • Emission family and control systems 126 – N13 with SCR engines H – Diesel, turbocharged, Charge Air Cooler (CAC), • Valve lash specifications and electronically controlled •...
  • Page 14: Engine Accessory Labels And Identification Plates

    Selective Catalyst Reduction (SCR) catalyst • Starter motor • Turbochargers Engine Specifications ® Navistar N13 Diesel Engine Engine Configuration 4 stroke, inline six cylinder diesel Advertised brake horsepower @ rpm ® • Navistar See EPA exhaust emission label Peak torque @ rpm ®...
  • Page 15 ENGINE SYSTEMS ® • Navistar 1087 kgs (2392 lbs) Firing order 1-5-3-6-2-4 Engine rotation direction (facing flywheel) Counterclockwise Aspiration Dual turbocharged and charge air cooled Combustion system Direct injection turbocharged Fuel system High-pressure common rail Lube system capacity (including filter) 40 L (42 qts) ®...
  • Page 16: Heavy Duty On Board Diagnostics (Hd-Obd)

    ® Navistar N13 engines also use an engine oil cooler • 2016: All engines must be fully HD-OBD certified. and a cartridge-style engine oil filter, which are installed in the engine lube oil module.
  • Page 17: Optional Equipment

    Engine Brake by Jacobs is optional Temperature (DPFIT) sensor positioned at the ® for Navistar N13 engine displacements. The engine DPF inlet. brake is a compression release system that provides • The DPF temporarily stores carbon-based additional vehicle braking performance. The operator...
  • Page 18: Intake Manifold Pressure (Imp) Sensor

    ENGINE SYSTEMS Air Management System Figure 3 Air Management System Exhaust Gas Recirculation Intake Manifold Temperature 11. Low Pressure (LP) turbocharger Temperature (EGRT) sensor (IMT) sensor 12. Exhaust Back Pressure Valve Intake Manifold Pressure (IMP) EGR valve (EBPV) sensor Turbocharger 2 Compressor 13.
  • Page 19: Inlet Air Heater System

    ENGINE SYSTEMS Airflow During cold weather, the Inlet Air Heater system activates the heater element, vaporizing and igniting Air flows through the air filter assembly and enters small quantities of fuel into the air inlet duct. the Low-Pressure (LP) turbocharger. The LP turbocharger increases air pressure and temperature After combustion, exhaust gases exit through the...
  • Page 20 11. HP turbocharger compressor HP turbocharger LP turbocharger compressor outlet outlet ® Navistar N13 engines are equipped with a Throttle Valve (ETV) and the intake throttle duct. This pneumatically regulated two-stage turbocharger system provides high charge air pressure to improve system.

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