New Holland 667TA/EEG User Manual

ENGINE REPAIR MANUAL
667TA/EEG
667TA/EEC
667TA/EBF
667TA/EED
667TA/EBJ
667TA/EDJ
Issued 11-2006
Book/Form Number 87519804 NA
Copyright © 2006. CNH America LLC. All Rights Reserved.
Printed in U.S.A. • Bur
Source Code No. unknown

New Holland 667TA/EEG Specifications

General

Engine Model	667TA/EEG
Type	Diesel
Cylinders	6
Aspiration	Turbocharged and Aftercooled
Engine Type	Inline
Displacement	6.7 L
Power Output	173 hp (129 kW)
Maximum Torque	540 lb-ft (732 Nm)

Summary

Chapter 1: Diagnostics

Diagnostics

Covers engine diagnostics and troubleshooting procedures.

CNH- EST Diagnostic Tool

Explains the use of the Electronic Service Tool for engine diagnostics.

Troubleshooting

Provides systematic troubleshooting for common engine problems.

Chapter 2: 667TA Engine Overhaul

667TA Engine Overhaul

Detailed procedures for overhauling the 667TA engine.

Engines

Illustrations and identification of different 667TA engine models.

Coding of Source Engines

Explains the model designation breakdown for 667TA engines.

General Engine Features

Overview of general features and specifications for 667TA engines.

Crank Gear Components and Cylinder Assembly

Details components of the crank gear and cylinder assembly with dimensions.

Valve Gear - Cylinder Assembly

Explains valve gear components and specifications for cylinder assembly.

Torque Specifications

Lists torque values for various engine fasteners and components.

Special Tools

Lists specialized tools required for engine repair procedures.

Description of Main Engine Components

Provides descriptions and illustrations of major engine components.

Crankshaft

Detailed information on the crankshaft, its components, and oil seals.

Pistons

Details on piston construction, cooling, ring grooves, and markings.

Engine Lubrication

Details the pressurized lubrication system components and paths.

High Pressure Electronic Injection System (Common Rail)

Explains the high-pressure common rail injection system.

EDC7UC31 - Electronic Control Unit Operation

Describes the functions and operation of the EDC7UC31 control unit.

Fuel Supply System

Overview of the low and high-pressure fuel circuits.

Fuel Filter

Details the fuel filter, its heater, and temperature sensor.

Common Rail

Describes the common rail as a high-pressure fuel storage device.

Electro-Injector

Details the electro-injector's construction, operation, and parts.

Location of the Main Electrical Components

Identifies and locates key electrical components on the engine.

Engine Overhaul on the Bench

Provides steps for overhauling the engine on a bench.

Checks and Specifications on Engine Crankcase

Details checks and specifications for the engine crankcase.

Measuring the Journals and Crankpins

Procedures for measuring crankshaft journal and crankpin dimensions.

Connecting Rod-Piston Assembly

Details the parts and data for the connecting rod-piston assembly.

Valve Clearance Adjustment

Steps for adjusting valve clearances.

Chapter 3: Charging and Start-up

Charging and Start-up

Covers engine charging and start-up procedures.

Starter Motor

Information on starter motor types and quick diagnosis.

Quick Diagnosis (Starter Motor)

Troubleshooting guide for starter motor issues.

Bosch 24 Volt - 4 kW Starter

Details on the Bosch 24V 4kW starter motor.

Iskra 24 Volt - 4 kW Starter

Details on the Iskra 24V 4kW starter motor.

Denso 24Volt - 7.8kW Starter

Information on the Denso 24V 7.8kW starter motor.

Alternator

Information on alternator types and quick diagnosis.

Quick Diagnosis (Alternator)

Troubleshooting guide for alternator issues.

Bosch: NCBI 28 Volt 35-70 Amp

Details on the Bosch NCBI 28V 35-70A alternator.