Ingersoll-Rand 4IRJ7N Instruction manual

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Ingersoll-Rand
4IRJ7N & 4IRJ7T
Diesel Engine
WORKSHOP MANUAL
© Ingersoll-Rand Co. 2000
54533500 Apr.2000
Doosan purchased Bobcat Company from Ingersoll-Rand Company in
2007. Any reference to Ingersoll-Rand Company or use of trademarks,
service marks, logos, or other proprietary identifying marks belonging
to Ingersoll-Rand Company in this manual is historical or nominative
in nature, and is not meant to suggest a current affiliation between
Ingersoll-Rand Company and Doosan Company or the products of
either.
Revised (10-12)

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FOREWORD
This Workshop Manual is designed to help you perform necessary
maintenance, service, and repair procedures on applicable Ingersoll- Rand
industrial engines.
Information contained in this Workshop Manual is the latest
available at the time of publication.
Ingersoll-Rand reserves the right to make changes at any time without prior
notice.
This Workshop Manual is applicable to 1999 and later models.
NOTICE
Before using this Workshop Manual to assist you in
performing engine service and maintenance operations,
it is recommended that you carefully read and throughly
understand the information contained in Section - 1
under the headings “General Repair Instruction” and
“Notes on The Format of This Manual”

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SECTION 1. GENERAL INFORMATION ................................................................... 5
TABLE OF CONTENTS
SECTION 2. MAINTENANCE..................................................................19
SECTION 3. ENGINEASSEMBLY(1).....................................................................31
(DISASSEMBLY)
SECTION 4. ENGINEASSEMBLY(2).....................................................................49
(INSPECTION AND REPAIR)
SECTION 5. ENGINEASSEMBLY(3)......................................................................82
(REASSEMBLY)
SECTION 6. LUBRICATING SYSTEM ...................................................................... 108
SECTION 7. COOLINGSYSTEM..............................................................................120
SECTION 8. FUELSYSTEM......................................................................................125
SECTION 9. TROUBLESHOOTING..........................................................................138
SECTION 10. REPAIRSTANDARDS.........................................................................163
SECTION 11. CONVERSIONTABLE.........................................................................176

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GENERAL INFORMATION
SECTION 1
GENERAL INFORMATION
TABLE OF CONTENTS
ITEM PAGE
Generalrepairinstructions..........................................................................................................5
Notesontheformatofthismanual.............................................................................................5
Maindataandspecifications.........................................................................................................9
Tighteningtorquespecifications.................................................................................................10

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GENERAL INFORMATION
GENERAL REPAIR INSTRUCTIONS
1. Before performing any service operation with the engine mounted, disconnect the grounding cable
from the battery.
This will reduce the chance of cable damage and burning due to short circuiting.
2. Always use the proper tool or tools for the job at hand.
Where specified, use the specially designed tool or tools.
3. Use genuine INGERSOLL-RAND parts.
4. Never reuse cotter pins, gaskets, O-rings, lock washers, and self locking nuts. Discard them as you
remove them. Replace them with new ones.
5. Always keep disassembled parts neatly in groups. This will ensure a smooth reassembly operation.
It is especially important to keep fastening parts separate. These parts vary in hardness and design,
depending on their installation position.
6. All parts should be carefully cleaned before inspection or reassembly.
Oil ports and other openings should be cleaned with compressed air to make sure that they are
completely free of obstructions.
7. Rotating and sliding part surfaces should be lubricated with oil or grease before reassembly.
8. If necessary, use a sealer on gaskets to prevent leakage.
9. Nut and bolt torque specifications should be carefully followed.
10. Always release the air pressure from any machine-mounted air tank(s) before dismounting the engine
or disconnecting pipes and hoses. To not do so is extremely dangerous.
11. Always check and recheck your work. No service operation is complete until you have done this.
NOTES ON THE FORMAT OF THIS MANUAL
This Workshop Manual is applicable to INGERSOLL-RAND industrial engine or engines which is or are stated
inthetitle.
When more than two engine models are dealt in the manual, such engines have common parts and
components as well as data and specifications, unless otherwise specified.
1. Find the applicable section by referring to the Table of Contents at the beginning of the Manual.
2. Common technical data such as general maintenance items, service specifications, and tightening
torques are included in the “General Information” section.
The section ENGINE ASSEMBLY is an exception. This parts are divided in three sections to facilitates
indexing.
3. Each section is divided into sub-sections dealing with disassembly, inspection and repair, and
reassembly.

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4. When the same servicing operation is applicable to several different units, the manual will direct you
to the appropriate page.
5 . For the sake of brevity, self-explanatory removal and installation procedures are omitted.
More complex procedures are covered in detail.
6. Each service operation section in this Workshop Manual begins with an exploded view of the
applicable area. A brief explanation of the notation used follows.
GENERAL INFORMATION

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GENERAL INFORMATION

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GENERAL INFORMATION
9. Measurement criteria are defined by the terms “standard” and “limit”.
A measurement falling within the “standard’ range indicates that the applicable part or parts are
serviceable.
“Limit” should be thought of as an absolute value.
A measurement which is outside the “limit” indicates that the applicable part or paas must be either
repaired or replaced.
IO. Components and parts are listed in the singular form throughout the Manual.
11. Directions used in this Manual are as follows:
Front
The cooling fan side of the engine viewed from the flywheel.
Right
The right hand side viewed from the same position.
Left
The left hand side viewed from the same position
Rear
The flywheel side of the engine.
Cylinder numbers are counted from the front of the engine.
The front most cylinder is No. ‘l and rear most cylinder is the final cylinder number of the engine.
The engine’s direction of rotation is counterclockwise viewed from the flywheel.

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GENERAL INFORMATION

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GENERAL INFORMATION
TIGHTENING TORQUE SPECIFICATIONS
The tightening torque values given in the table below are applicable to the bolts unless otherwise
specified.