Daewoo DB58 Install guide

65.99892-8026A Shop Manual
Daewoo reserves the right to improve our products in a continuing process to provide the best possible
product to the market place. These improvements can be implemented at any time with no obligation to
change materials on previously sold products. It is recommended that consumers periodically contact their
distributors for recent documentation on purchased equipment.
This documentation may include attachments and optional equipment that is not available in your
machine’s package. Please call your distributor for additional items that you may require.
Illustrations used throughout this manual are used only as a representation of the actual piece of
equipment, and may vary from the actual item.
Shop Manual
65.99892-8026A
DB58, DB58T &
DB58TI DIESEL
ENGINE

PREFACE
This operation and maintenance manual for DB58/T/TI, diesel engine, is explained to correctly and
systematically maintain in order to accurately operate and guarantee for the life span of motors.
This manual, not only thorough overhaul drawing of numerical value for service, maintenance items
and various torques but also disassembly parts, installation, overhaul, inspection and repair,
principle of reassembly, is quickly and usefully understand of the service procedure to be repaired
parts, and evolved services is as follows.
Removal Adjustment
Installation Liquid gasket application
Disassembly Cleaning
Reassembly Pay close attention-Important
Alignment(Marks) Tighten to specified torque
Directional Indication Use special tools of manufacturer's
Inspection Lubricate with oil
Measurement Lubricate with grease
This manual is eligible a training aids to the trainees, and further information, please feel free to call
Service Center of Engine Parts, DaeWoo, at any time.

TABLE OF CONTENTS
1. GENERAL .................................................................................................................................. 1
1.1. General Repair Instructions 1.5. Maintenance
1.2. Engine Specifications 1.6. Engine Repair Parts(Standard Engine)
1.3. Torque Specifications 1.7. Recommended Lubricants
1.4. Main Part Fixing Nuts And Bolts
2. ENGINE ASSEMBLY AND DISASSEMBLY ............................................................................31
2.1. External Parts Disassembly 2.3. Inspection and Repair
2.2. Key Components Disassembly 2.4. Reassembly
3. SYSTEM OF LUBRICATION ....................................................................................................96
3.1. General Description 3.3. Oil Cooler
3.2. Oil Pump
4. COOLING SYSTEM ................................................................................................................101
4.1. General Description 4.3. Thermostat
4.2. Coolant pump
5. FUEL SYSTEM .......................................................................................................................110
5.1. General Description 5.3. Injection Nozzle
5.2. Fuel filter
6. ENGINE ELECTRICALS ........................................................................................................120
6.1. Starter Motor 6.2. Alternator
7. TURBO CHARGER ................................................................................................................122
8. CAUSE OF TROUBLE, DIAGNOSIS AND TROUBLESHOOTING........................................125
•WORLDWIDE NETWORK

1. General
1.1. General Repair Instructions
1) Equipment shall be safely parked on the ground, and propped front and rear wheel when work.
2) Prior to maintain, disconnect the grounding cable from the battery to be prevented the
damaged cable and burning due to short-circuiting.
3) Shield body and sheet with the coverlet in order to prevent of damage and getting stained.
4) All the persons handling brake oil and anti-freezing solution shall be carefully treated to be
undamaged the painting parts.
5) When maintain the specially designated parts, the appropriated tools or special tools shall be of
importance used to maintain the life span.
6) Changeable parts shall be rightly used the genuine parts of DAEWOO.
7) When the used cotter pins, gaskets, O-rings, oil seals, lock washer and self-lock nuts do reuse,
you may need to maintain again, so that why you use the brand new products.
8) Orderly place the disassembled parts in groups to be smoothly reassembled after maintained.
9) Prior to inspect reassemble, you must clean the parts, and also clean the perforated oil ring
with the compressed pneumatic in order to prevent of inflow an alien substance.
10) Prior to assemble, lubricate the oil or grease to the rotating and sliding faces of parts.
11) Adhere to the gaskets to prevent of leakage if necessary.
12) Getting tightened the bolts and nuts torque shall be comply with a rule.
13) Finally check to make sure when the maintenance has been done.
14) The system of an aerial parts for a safety shall be removed the compressed pneumatic without
fail when disassemble in a working.
- 1 -

1.2. Engine Specifications
- 2 -
EngineModel
Items DB 58 DB 58T DB58TI
Engine type Water cooled, 4 cycle, vertical in-line, overhead valve
Combustion chamber type Direct injection
Cylinder liner type Dry type
Timing gear system Gear drive type
Number of piston ring Compression ring 2, oil ring 1
No. of cylinder-borestroke (mm) 6-102118
Total piston displacement (cc) 5,785
Compression ratio 17.4 : 1
Engine dimensions (lengthwidthheight)(mm) 1122648775 1172671886 1172683928
Engine weight (dry) (kg)
455 497 505
Fuel injection order 1-5-3-6-2-4
Fuel injection timing (B.T.D.C static) 181313
Type of fuel used High speed diesel fuel (SAE No. 2)
Fuel filter type Cartridge type
Injection pump type Bosch in-line A type (for industrial)
Bosch in-line AD type (for Automotive)
Governor type Mechanical governing (RLD, RSV type)
Injection nozzle type Multi hole type
Fuel injection pressure (kg/cm2) 185
Compression pressure (kg/cm2) 31 (at 200RPM)
Idle speed (RPM) 850 1100
Intake and exhaust valve clearance (mm) 0.4(at cold)
Max. power 130/2800 132ps/2200rpm 162ps/2200rpm
Max. torque 38/1600 45kg•m/1600rpm 60kg•m/1600rpm
Lubrication method Pressurized circulation
Oil pump type Gear type
Oil filter type Full flow, cartridge or center bolt type
Piston cooling method Oil zet cooling type
Lubrication oil capacity (ℓ) 19 20.5
Oil cooler type Water cooled
Cooling method Pressurized forced circulation
Cooling water capacity (ℓ) 12
Water pump Belt driven impeller type
Thermostat type Wax pellet type
Battery(V) 24
Alternator (V-A) 24-60
Starter (V-KW) 24-4.5

- 3 -
Bolt identification
Bolt 4T 7T 9T
diameter pitch (mm) (Low carbon steel) (High carbon steel) (Alloy steel)
M 61.0 0.60.2 0.750.2
M 81.25 1.30.5 1.750.5 2.00.7
M101.25 2.80.7 3.750.9 5.01.3
M121.25 6.251.2 7.751.5 9.651.9
M141.5 8.751.9 11.852.3 14.502.9
M161.5 13.32.7 17.303.5 20.404.1
M181.5 19.23.8 24.905.0 29.305.9
M201.5 26.35.3 34.406.9 40.408.1
M221.5 33.08.3 46.259.2 54.1010.8
M242.0 45.89.2 58.2014.0 70.6014.1
*M101.5 2.70.7 3.70.9 4.91.2
*M121.5 5.81.2 7.21.4 9.11.8
*M142.0 9.11.8 11.22.2 13.62.2
*M162.0 12.72.5 16.53.3 19.53.9
Note : The marked (*) bolts which are made with the soft materials, e.g., cast-iron products
shall be used for a female screw part.
4
7
9
1.3. Torque Specifications
Standard Bolts
The below described torque value shall be applied for the general torque which are not
specially specified in this table.
(Unit : kgm)

1.4. Main Part Fixing Nuts And bolts
Cylinder Head and Cover
(Unit : kgm)
- 4 -
2.70.25
(19.51.8)
5.31
2.10.5
5.31
11.505. (hexagon bolt) : (Torque Control Method)
4 Kg m + 90˚+60˚(0~30˚)
(docoecagon bolt) : (Angle Control Method)
EJM1001S
preheating plug

Cylinder Block
(Unit : kgm)
- 5 -
5.31
2.60.5
2.60.5
2.60.5
2.10.5
24.11
EJM1002S

Oil Pan and Dipstick
(Unit : kgm)
- 6 -
2.60.5
8.01.0
2.90.3
EJM1003S

Cam Shaft and Rocker Arm
(Unit : kgm)
- 7 -
161.5
Engine oil application
5.51
2.60.5
2.60.5
3.10.5
3.10.5
EJM1004S

Crankshaft, Piston, and Flywheel
(Unit : kgm)
- 8 -
22.32.2
605
A type : 120.25
B type : 9.250.25
B type
or
A type
EJM1005S
 : ON BOLT HEAD

 Thermostat and Thermostat Housing
(Unit : kgm)
- 9 -
EJM1006S
5.31
5.31
2.60.5

 Intake and Exhaust Manifold(DB58)
(Unit : kgm)
- 10 -
2.90.3
2.60.5
EJM1007S

 Intake and Exhaust Manifold(DB58T)
(Unit : kgm)
- 11 -
5.31.0
2.60.5
EJM1008S

 Intake and Exhaust Manifold(DB58TI)
(Unit : kgm)
- 12 -
EJM1009S
2.90.3
2.60.5

 Timing Gear Case and Flywheel Housing
(Unit : kgm)
- 13 -
EJM1010S
16.01.0
16.01.0
Outside
2.60.5
2.60.5
2.60.5
Inside

 Oil Cooler, Oil Filter and Oil Pump
(Unit : kgm)
- 14 -
2.60.5
2.60.5
5.31.0
EJM1011S
5.31.0
5.31.0

 Fuel System (DB58, DB58T)
(Unit : kgm)
- 15 -
EJM1012S
1.90.2
1.30.2
3.10.2 1.70.1
4.20.8
4.20.8

 Fuel System(DB58TI)
(Unit : kgm)
- 16 -
EJM1013S
1.90.2
1.30.2
3.10.2 1.70.2
4.20.8

 Turbo Charger and Related Parts (DB58T)
(Unit : kgm)
- 17 -
EJM1014S
3.80.7
5.31.0
3.10.5
3.80.7
2.60.5