Introduction

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The Detroit Diesel Series 71 Inline Engine Service Manual is an essential resource for maintaining, troubleshooting, and optimizing the performance of Series 71 engines. This volume, particularly focused on lubrication and cooling systems, provides a comprehensive guide for mechanics, engineers, and operators. With the Series 71 engines now out of print, this guide aims to preserve the valuable information needed to ensure the longevity and reliability of these engines. From in-depth maintenance procedures for the lubrication and cooling systems to detailed troubleshooting and specifications, this manual covers everything required to keep Series 71 engines running smoothly. Below is a breakdown of key sections and procedures that will assist in maintaining these engines efficiently.

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Lubrication System For Detroit Diesel 71 Series Inline Engines (271, 371, 471, 671)

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This section covers essential components of the lubrication system, such as the oil pump, oil filters, pressure regulator, and cooler. It details the flow of oil through the engine, ensuring that each part receives the lubrication necessary to reduce friction and wear. Maintenance guidelines for these components are included, along with instructions on stabilizing oil pressure and preventing overheating. Detailed troubleshooting and cleaning procedures are provided to help mechanics identify and address common issues, maximizing engine longevity and preventing costly repairs.

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Cooling System and Heat Exchanger For Detroit Diesel 71 Series Inline Engines (271, 371, 471, 671)

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Effective cooling is vital to prevent overheating and ensure the engine operates within safe temperature ranges. This section describes the cooling techniques used in the Series 71 engines, including configurations for the radiator and heat exchanger. Guidelines are provided for selecting the appropriate coolant, filling, and maintaining the cooling system, alongside routine checks to monitor system performance. Detailed instructions for maintaining the heat exchanger core ensure efficient heat dissipation and prevent overheating, which can lead to engine failure if unaddressed.

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Introduction to the Cooling System and Heat Exchanger For Detroit Diesel 71 Series Inline Engines (271, 371, 471, 671)

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• Cooling System Configurations For Detroit Diesel 71 Series Inline Engines (271, 371, 471, 671)

• Types of Coolant For Detroit Diesel 71 Series Inline Engines (271, 371, 471, 671)
• Coolant Considerations for High-Temperature and Freezing Conditions
• Chemicals & Coolant For Your Detroit Diesel 71 Series Inline Engine (271, 371, 471, 671)
• Filling and Bleeding the Cooling System For Detroit Diesel 71 Series Inline Engines (271, 371, 471, 671)

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Routine Cooling System Checks and Maintenance For Detroit Diesel 71 Series Inline Engines (271, 371, 471, 671)

• Maintaining The Heat Exchanger Core For Detroit Diesel 71 Series Inline Engine (271, 371, 471, 671)

• Longterm – Benefits Of Maintaining The Cooling System For Detroit Diesel 71 Series Inline Engines (271, 371, 471, 671)

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Water Pump For Detroit Diesel 71 Series Inline Engines (271, 371, 471, 671)

•  Introduction to the Water Pump System for the 71 Series Inline Engine (271, 371, 471, 671)
• Freshwater Pump Maintenance For Detroit Diesel 71 Series Inline Engines (271, 371, 471, 671)
• Disassembly of the Freshwater Pump For Detroit Diesel 71 Series Inline Engines (271, 371, 471, 671)
• Reassembly of the Freshwater Pump For Detroit Diesel 71 Series Inline Engines (271, 371, 471, 671)
• Raw Water Pump Maintenance (Marine Applications) For 71 Series Inline Engines (271, 371, 471, 671)
• Disassembly of the Raw Water Pump For Detroit Diesel 71 Series Inline Engines (271, 371, 471, 671)

Ventilation and Crankcase Vapor Collection For Detroit Diesel 71 Series Inline Engines (271, 371, 471,671)

Troubleshooting and Specifications For Cooling & Lubrication In Detroit Diesel 71 Series Inline Engines (271, 371, 471, 671)

Common troubleshooting steps, torque specifications, and parts grading help mechanics diagnose and resolve frequent issues in the lubrication and cooling systems. This section includes specifications for torque settings on bolts and nuts, as well as guidance on identifying worn or damaged parts. A systematic approach to troubleshooting allows for quicker diagnosis and effective repairs, minimizing engine downtime and improving overall reliability.

Overview of Troubleshooting in Lubrication and Cooling Systems For Detroit Diesel 71 Series Inline Engines (271, 371, 471,671)

Systematic Approach to Troubleshooting For Detroit Diesel 71 Series Inline Engines (271, 371, 471, 671)

Cooling System Troubleshooting For Detroit Diesel 71 Series Inline Engines (271, 371, 471, 671)

Torque Specifications for Key Components For Detroit Diesel 71 Series Inline Engines (271, 371, 471, 671)

Parts Grading and Condition Assessment For Detroit Diesel 71 Series Inline Engines (271, 371, 471, 671)

Troubleshooting Tips for Improved Efficiency In Detroit Diesel 71 Series Inline Engines (271, 371, 471, 671)

Summary of Troubleshooting and Specifications In Detroit Diesel 71 Series Inline Engines (271, 371, 471, 671)