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Detroit Diesel V-71 User Manual

Detroit Diesel V-71
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Detroit Diesel
-2ngines
V-71 Operators Manual
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Detroit Diesel V-71 Specifications

General IconGeneral
Engine TypeTwo-stroke diesel
AspirationNaturally aspirated or Turbocharged
Fuel TypeDiesel
Cooling SystemLiquid-cooled
ConfigurationVee
Number of Cylinders6, 8, 12, 16
Bore4.25 inches (108 mm)
Stroke5.0 in (127 mm)
Power OutputVaries by model and configuration
Fuel SystemUnit injector
Displacement per Cylinder71 cu in (1.2 L)

Summary

To The Operator

Warranty Information

Details regarding the engine warranty and service policy.

Engine Description

Principles of Operation

Explanation of the two-stroke cycle and engine function.

General Description

Overview of V-71 engine features, configurations, and components.

Model Description, Rotation, and Accessory Arrangement

Details on engine models, rotation, and accessory placement.

General Specifications

Key technical specifications for V-71 engines.

Engine Model and Serial Number Designation

Information on identifying engine models and serial numbers.

Built-In Parts Book

Explanation of the integrated parts identification system.

Engine Systems

Fuel System

Description of the engine's fuel delivery and filtration system.

Injector Removal and Installation

Procedure for removing and installing fuel injectors.

Fuel Pump

Details on the operation and function of the fuel pump.

Fuel Strainer and Fuel Filter

Maintenance and replacement of fuel strainers and filters.

Fuel Tank and Engine Out of Fuel

Procedures for fuel tank management and restarting after running out of fuel.

Air System

Explanation of the engine's air intake and scavenging system.

Oil Bath Type Air Cleaners

Description and servicing of oil bath air cleaners.

Heavy-Duty Dry-Type Air Cleaner

Description and servicing of heavy-duty dry-type air cleaners.

Two-Stage Dry-Type Air Cleaner Operation and Service

Operation and maintenance of the two-stage dry-type air cleaner.

Air Silencer

Function and servicing of the air silencer.

Air Box Drains

Importance and maintenance of air box drain tubes.

Crankcase Ventilation

Description of the engine's crankcase ventilation system.

Lubricating System

Overview of the engine's oil lubrication system.

Oil Filters

Details on full-flow and by-pass lubricating oil filters.

Lubrication System Diagrams

Schematic diagrams illustrating lubrication systems.

Full-Flow Filter Mounting

Procedure for mounting the full-flow oil filter.

Cooling System

Radiator and Fan Cooling

Explanation of the radiator and fan cooling method.

Cooling System Capacity

Information on the coolant capacity of the engine.

Fill Cooling System

Procedure for filling the engine's cooling system.

Heat Exchanger Cooling

Description of the heat exchanger cooling system.

Keel Cooling

Explanation of the keel cooling system.

Engine Cooling System Maintenance

Procedures for maintaining the engine cooling system.

Engine Coolant

Properties and requirements for engine coolant.

Drain Cooling System

Procedure for draining the engine cooling system.

Flushing Cooling System

Steps for flushing the engine cooling system.

Cooling System Cleaners

Use of cleaning agents for the cooling system.

Reverse Flushing Procedures

Methods for reverse flushing cooling system components.

Miscellaneous Cooling System Checks

Checks for various cooling system components.

Water Pump

Raw Water Pump

Operation, maintenance, and seal replacement for the raw water pump.

Engine Equipment

Instrument Panel, Instruments and Controls

Overview of engine instrumentation and control devices.

Manual Shutdown System

Description and operation of the manual engine shutdown.

Automatic Mechanical Shutdown System

Functionality of the automatic mechanical engine shutdown system.

Automatic Electrical Shutdown System

Operation of the automatic electrical engine shutdown system.

Alarm System

Details on the engine alarm system and its indicators.

Starting Systems

Overview of the engine's electrical starting systems.

Electrical Starting System

Components and operation of the electrical starting system.

Alternator Precautions

Important safety precautions when working with the alternator.

Cold Weather Starting Aids

Fluid Starting Aid

Description and use of the fluid starting aid system.

Fluid Starting Aid Service

Service and maintenance for the fluid starting aid.

Governors

Engine Governors

Types of governors and their functions on the engine.

Output Shaft Governors

Details on governors used for output shaft speed control.

Transmissions

Power Take-Off Assemblies

Description and adjustment of power take-off units.

Clutch Adjustment

Procedures for adjusting the clutch.

Torqmatic Marine Gear

Information on the Torqmatic marine gear operation.

Twin Disc Marine Gear

Details on the Twin Disc marine gear operation.

Torqmatic Converters

Information on Torqmatic converters and their service.

Operating Instructions

Engine Operating Instructions

Fundamental procedures for operating the engine.

Preparation for Starting Engine First Time

Crucial steps before the initial engine start.

Lubrication System

Operating procedures for the engine lubrication system.

Turbocharger

Operating procedures for the turbocharger.

Air Cleaner

Operating procedures for the engine air cleaner.

Transmission

Operating procedures for the engine transmission.

Fuel System

Operating procedures for the engine fuel system.

Lubrication Fittings

Procedures for lubricating engine fittings.

Drive Belts

Operating procedures for engine drive belts.

Storage Battery

Operating procedures for the storage battery.

Generator Set

Operating procedures for generator sets.

Clutch

Operating procedures for the engine clutch.

STARTING

Procedures for starting the engine.

RUNNING

Procedures for running the engine.

STOPPING

Procedures for stopping the engine.

Normal Stopping

Standard procedure for shutting down the engine.

Emergency Stopping

Procedure for emergency engine shutdown.

Alternating Current Power Generator Set

OPERATING INSTRUCTIONS

Fundamental procedures for operating the AC power generator set.

PREPARING GENERATOR FOR LOAD

Steps to prepare the generator set for applying load.

PARALLELING

Instructions for paralleling power generator sets.

Lubrication and Preventive Maintenance

MAINTENANCE CHART

Schedule for lubrication and preventive maintenance tasks.

Item 1: Engine Oil

Checking and maintaining engine oil level and condition.

Item 2: Oil Filter

Replacement intervals for oil filter elements.

Item 3: Coolant and Filter

Maintenance for coolant and associated filters.

Item 4: Hoses

Inspection of cooling system hoses for deterioration.

Item 5: Radiator

Inspection and cleaning of the radiator core.

Item 6: Heat Exchanger Electrodes and Core

Maintenance of heat exchanger components.

Item 7: Raw Water Pump

Checking and priming the raw water pump.

Item 8: Fuel Tank

Maintaining fuel tank cleanliness and draining water.

Item 9: Fuel Strainer and Filter

Replacement intervals for fuel strainer and filter elements.

Item 10: Air Cleaners

Servicing of engine air cleaners.

Item 11: Air Box Drains

Checking and cleaning air box drain tubes.

Item 12: Ventilating System

Maintenance of the crankcase ventilating system.

Item 13: Blower Screen

Inspection and cleaning of blower screen assemblies.

Item 14: Starting Motor

Lubrication and service for the starting motor.

Item 15: Battery-Charging Generator

Lubrication of battery-charging generator bearings.

Item 16: Battery

Checking battery electrolyte specific gravity and level.

Item 17: Tachometer Drive

Lubrication of the tachometer drive mechanism.

Item 18: Throttle and Clutch Controls

Lubrication of throttle and clutch control mechanisms.

Item 19: Engine Tune-Up

General procedures for engine tune-up.

Item 20: Drive Belts

Adjustment and replacement of drive belts.

Item 21: Overspeed Governor

Lubrication of the overspeed governor.

Item 22: Fan Hub Bearings

Lubrication and service for fan hub bearings.

Item 23: Shut-Down System

Checking the engine shutdown system.

Item 24: Air Compressor Air Strainer

Cleaning air compressor air strainer elements.

Item 25: Turbocharger

Inspection and servicing of the turbocharger.

Item 26: Turbo-Modulated Fan

Checking fan drive fluid levels and components.

Item 27: Power Generator

Lubrication of power generator bearings.

Item 28: Power Take-Off

Lubrication of power take-off bearings and components.

Item 29: Torqmatic Converter

Checking and maintaining Torqmatic converter oil level.

Item 30: Marine Gear

Checking and changing oil in marine gears.

Item 31: Reduction Gear (Single Engine Units)

Maintenance for single-engine reduction gears.

Item 32: Reduction Gear (Multiple Engine Units)

Maintenance for multiple-engine reduction gears.

Rockford Reduction Gear

Maintenance procedures for Rockford reduction gears.

Reduction Gear (24V and 32V)

Maintenance for 24V and 32V reduction gears.

Fuel, Oil and Coolant Specifications

Diesel Fuel Oils - General Considerations

General requirements for diesel fuel oil quality.

Detroit Diesel Fuel Oil Specifications

Specific fuel requirements for Detroit Diesel engines.

Diesel Lubricating Oils - General Considerations

General requirements for diesel engine lubricating oils.

EMD (RR) Oils

Use of Electra-Motive Division (EMD) lubricants.

Synthetic Oils

Guidelines for using synthetic lubricants in engines.

Engine Oil Classification System

API, SAE, and ASTM systems for classifying engine oils.

Oil Changes

Recommendations for engine oil change intervals.

Highway Trucks & Inter-City Buses Oil Changes

Oil change intervals for highway truck engines.

City Transit Coaches Oil Changes

Oil change intervals for transit coach engines.

Engine Coolant

Essential information on engine coolant selection and maintenance.

Corrosion Inhibitors

Types and properties of corrosion inhibitors for cooling systems.

Soluble Oil

Information on soluble oil as a corrosion inhibitor.

Non-Chromates

Use and benefits of non-chromate corrosion inhibitors.

Inhibitor Systems

Description of inhibitor systems for cooling.

Coolant Filter Elements

Details on replaceable coolant filter elements.

Bulk Inhibitor Additives

Information on commercially packaged inhibitor additives.

Antifreeze

Requirements and recommendations for permanent type antifreeze.

General Recommendations

General recommendations for cooling system maintenance.

Antifreeze Recommendations

Specific recommendations for antifreeze usage.

Engine Tune-Up Procedures

Engine Tune-Up

General overview of engine tune-up procedures.

Exhaust Valve Clearance Adjustment

Procedure for adjusting exhaust valve clearance.

Exhaust Valve Bridge Adjustment

Procedure for adjusting exhaust valve bridges.

Exhaust Valve Clearance Adjustment (Cold Engine)

Adjusting valve clearance for a cold engine.

Exhaust Valve Clearance Adjustment (Hot Engine)

Final valve clearance adjustment for a hot engine.

Timing Fuel Injector

Procedure for timing fuel injectors.

Injector Timing Gage Chart

Chart for selecting the correct injector timing gage.

Limiting Speed Mechanical Governor and Injector Rack Control Adjustment

Adjusting limiting speed mechanical governors and injector racks.

Position Injector Rack Control Levers

Setting the correct position for injector rack control levers.

Adjust Maximum No-Load Engine Speed

Setting the maximum no-load engine speed.

Standard Governor Adjustments

Adjustments for standard mechanical governors.

Dual High-Speed Range Governor

Adjustments for dual high-speed range governors.

Adjust Idle Speed

Setting the engine's idle speed.

Adjust Buffer Screw

Adjusting the buffer screw for engine stability.

Limiting Speed Mechanical Governor and Injector Rack Control Adjustment (16V-71 Engine)

Tune-up for 16V engines with limiting speed mechanical governors.

Adjust Governor Gap

Adjusting the governor gap.

Adjust Starting Aid Screw

Adjustment of the starting aid screw.

Adjust Maximum No-Load Engine Speed

Setting the maximum no-load engine speed.

Adjust Idle Speed

Setting the engine's idle speed.

Adjust Buffer Screw

Adjusting the buffer screw for engine stability.

Adjust Governor

General governor adjustment procedures.

Variable Speed Mechanical Governor and Injector Rack Control Adjustment

Governor and rack adjustment for variable speed mechanical governors.

Adjust Maximum No-Load Engine Speed

Setting the maximum no-load engine speed.

Adjust Idle Speed

Setting the engine's idle speed.

Adjust Buffer Screw

Adjusting the buffer screw for engine stability.

Adjust Booster Spring

Adjusting the booster spring for engine control.

Variable Speed Hydraulic Governor and Injector Rack Control Adjustment

Governor and rack adjustment for variable speed hydraulic governors.

Position Injector Rack Control Levers and Adjust Governor Linkage

Adjusting governor linkage and injector rack levers.

Governor Adjustments

Governor adjustments for hydraulic units.

Adjust Governor Speed Droop (Internal)

Adjusting internal speed droop for governors.

Adjust Maximum No-Load Speed

Setting the maximum no-load engine speed.

Adjust Low-Speed Stop Screw

Setting the low-speed stop screw for idle speed.

Engine Load Limit Device Adjustment

Adjusting the engine load limit device for horsepower control.

Power Control Device Adjustment

Adjusting the power control device for horsepower limitation.

Throttle Delay Mechanism Adjustment

Adjusting the throttle delay mechanism for smoke reduction.

Mechanical Governor Shutdown Solenoid Adjustment

Adjusting the shutdown solenoid plunger for safety.

Hydraulic Governor (EG-B Electric) and Injector Rack Control Adjustment

Adjusting EG-B electric governor and injector rack linkage.

Governor Adjustments

Key adjustments for centrifugal governors.

Adjust Maximum No-Load Engine Speed

Setting the maximum no-load engine speed.

Adjust Needle Valve

Adjusting the needle valve for actuator oil passages.

Speed Droop Adjustment

Adjusting speed droop for governor operation.

Adjust Governor Speed Droop (Internal)

Adjusting internal speed droop for governors.

Adjust Maximum No-Load Speed

Setting the maximum no-load engine speed.

Adjust Band-Level

Adjusting the band-level for governor performance.

Adjust Buffer Screw

Adjusting the buffer screw to prevent engine stalling.

Mechanical Output Shaft Governor and Linkage Adjustment

Adjusting mechanical output shaft governor and linkage.

Output Shaft Governor Operation

How the output shaft governor operates.

Output Shaft Governor Tune-Up

Tune-up procedures for the output shaft governor.

Hydraulic Output Shaft Governor and Linkage Adjustment

Adjusting hydraulic output shaft governor and linkage.

Governor Adjustments

Adjustments for hydraulic output shaft governors.

Final Adjustments

Final steps in governor adjustment procedures.

Storage

Preparing Engine for Storage

Precautions and steps for preparing an engine for storage.

Temporary Storage (30 days or less)

Procedures for temporary engine storage (up to 30 days).

Extended Storage (30 days or more)

Procedures for extended engine storage (over 30 days).

Procedure for Restoring Engine to Service

Steps to return an engine from extended storage to service.

Built-In Parts Book

Using the Built-In Parts Book

Guide on how to utilize the integrated parts book.

Option Plate Information

Details and interpretation of the engine option plate.

Group Nomenclature

Classification system for engine components.

Option Plate Data Transfer

Instructions for transferring option plate data.

Useful Information: Fuel and Lube Oil Filters

Recording service part numbers for filters.

Connecting Rod and Piston Components

Exploded view of connecting rod and piston assembly.

Crankshaft Pulley, Vibration Damper and Hub

Components of the crankshaft pulley assembly.

Crankshaft Components

Exploded view of crankshaft and related parts.

Valve Operating Mechanism (4 Valve)

Components of the 4-valve operating mechanism.

Camshaft and Gears

Exploded view of camshaft and gear assemblies.

Accessory Drive (Front Mounted)

Parts breakdown of front-mounted accessory drives.

Accessory Drive (Drive Plate Type)

Parts breakdown of drive plate type accessory drives.

Accessory Drive (Direct Driven)

Parts breakdown of direct-driven accessory drives.

Accessory Drive (Drive Hub Type)

Parts breakdown of drive hub type accessory drives.

Accessory Drive (Drive Disc Coupling Type)

Parts breakdown of drive disc coupling accessory drives.

Accessory Drive (Accessory Gear)

Parts breakdown of accessory gear drives.

Injector Controls (Non-Spring Loaded)

Components of non-spring loaded injector controls.

Spring-Loaded Injector Controls

Components of spring-loaded injector controls.

Typical Fuel Pump Components

Exploded view of a typical fuel pump.

Typical Fuel Oil Strainer Components

Exploded view of a typical fuel oil strainer.

Typical Fuel Oil Filter Components

Exploded view of a typical fuel oil filter.

Thermostat Housing Components

Components of the thermostat housing.

Blower Components

Exploded view of the blower assembly.

Heat Exchanger Components

Components of the heat exchanger.

Air Shut-Down Components

Components of the air shut-down system.

4 Valve Cylinder Head Components

Components of the 4-valve cylinder head.

Full-Flow Filter Components

Components of the full-flow filter.

Lubricating Oil Pump Components

Components of the lubricating oil pump.

Twin Plate Oil Cooler Components

Components of the twin-plate oil cooler.

Oil Cooler Components

Exploded view of the oil cooler assembly.

Fan Assembly Components

Components of the fan assembly.

Fan Mount Components

Components of the fan mount.

Fresh Water Pump (6, 8, 12V) Components

Components of the fresh water pump (6, 8, 12V).

Fresh Water Pump (16V) Components

Components of the fresh water pump (16V).

Tachometer Drive Covers and Adaptors

Parts for tachometer drive covers and adaptors.

Owner Assistance

Eastern Region Support

Contact information for the Eastern Region support office.

Western Region Support

Contact information for the Western Region support office.

Problem Resolution Procedure: Step One

First step in resolving customer issues with dealers.

Problem Resolution Procedure: Step Two

Second step for escalating unresolved customer issues.

Problem Resolution Procedure: Step Three

Third step for escalating issues to the Home Office.

Alphabetical Index

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