JEM193G
d. Hoist up engine and install it on the engine stand (SST).
Another method is to set engine sub-attachment and engine
attachment on engine stand beforehand, and then, install
engine.
3. Drain engine oil and coolant from engine.
4. Remove the following and the associated parts:
Exhaust manifold
Turbocharger assembly (For Europe)
Injection tube
Intake manifold
Oil pan (upper and lower)
Secondary timing chain
Fuel injection pump
Primary timing chain
Rocker cover
High pressure injection nozzle assembly
Camshaft
Cylinder head
Thermostat, water pipes
Oil cooler
Auxiliary component brackets
5. Remove fuel injection pump bracket.
SEM500G
6. If the replacement of pilot bushing is necessary, remove it with
pilot bushing puller (SST).
7. Remove rear oil seal retainer.
Insert a flat-bladed screwdriver between main bearing cap and
rear oil seal retainer to remove retainer.
8. Remove rear oil seal from rear oil seal retainer.
Punch out with a flat-bladed screwdriver.
Be careful not to damage rear oil seal retainer.
JEM195G
9. Remove piston and connecting rod assembly.
a. Set crankshaft pin of the removal location at a position close
to BDC.
b. Remove connecting rod cap.
c. Push piston and connecting rod assembly toward cylinder
head using a hammer handle.
Before removing piston and connecting rod assembly, check
connecting rod side clearance. Refer to EM-70, “CONNECT-
ING ROD SIDE CLEARANCE”.
10. Remove connecting rod bearings from connecting rod and
connecting rod cap.
CYLINDER BLOCKYD
Disassembly (Cont’d)
EM-68
JEM208G
If cylinder block or pistons are replaced with new ones, select
piston as follows:
When using a new cylinder block:
Identify the cylinder bore grade (No. 1, 2, or 3) on LH surface
at the rear of cylinder block and select a piston of the same
grade.
The part No. of piston is specified together with the piston pin
as an assembly.
YEM025
When re-using a removed cylinder block:
Measure the inner diameter of the cylinder block bore.
Determine the bore grade by comparing the measurement with
the values under “Cylinder bore ID” of the table below. Choose
a piston of the same grade.
Selective fitting for piston:
Unit: mm (in)
Grade (punched) 1 2 3
Cylinder bore ID86.000 - 86.010
(3.3858 - 3.3862)86.010 - 86.020
(3.3862 - 3.3866)86.020 - 86.030
(3.3866 - 3.3870)
Piston OD85.920 - 85.930
(3.3827 - 3.3831)85.930 - 85.940
(3.3831 - 3.3835)85.940 - 85.950
(3.3835 - 3.3839)
5. Determine piston oversize according to amount of cylinder
wear.
For oversize pistons, 0.25 and 0.5OS [0.25 mm (0.0098 in),
0.5 mm (0.0197 in) oversize] are available as service parts.
Refer to SDS, EM-94. When using an oversize piston, hone
cylinder so that the clearance between piston and cylinder
becomes the specified value. Be sure to use appropriate
oversize piston ring for the oversize piston.
6. Cylinder bore size is determined by adding piston-to-bore
clearance to piston diameter “A”.
Rebored size calculation: D = A + B − C
where,
D: Bored diameter
A: Piston diameter as measured
B: Piston-to-bore clearance
C: Honing allowance 0.02 mm (0.0008 in)
7. Cut cylinder bores.
When any cylinder needs boring, all other cylinders must
also be bored.
Do not cut too much out of cylinder bore at a time. Cut
only 0.05 mm (0.0020 in) or so in diameter at a time.
8. Hone cylinders to obtain specified piston-to-bore clearance.
9. Measure finished cylinder bore for out-of-round and taper.
Measurement should be done after cylinder bore cools
down.
CYLINDER BLOCKYD
Inspection (Cont’d)
EM-74
JEM220G
CONNECTING ROD BOLT DEFORMATIONNJEM0073S18Install nuts to connecting rod bolts. Check that the nut can be
screwed smoothly on bolt threads by hand to the last thread
on the bolt.
If the nut does not screw in smoothly, measure the outer diam-
eter of the bolt thread at the point specified in the figure.
If a necked point is identified, measure at that point.
Standard: 8.90 - 9.00 mm (0.3504 - 0.3543 in) dia.
Limit: 8.75 mm (0. 3445 in) dia.
If the measurement exceeds the limit, replace connecting rod
bolts and nuts.
AEM100
FLYWHEEL RUNOUTNJEM0073S11Runout (Total indicator reading):
Flywheel★
Less than 0.15 mm (0.0059 in)
CAUTION:
The signal plate is built into the flywheel assembly. Be
careful not to damage the signal plate, especially the
teeth.
Check the signal plate for deformation or cracks.
Never place the flywheel assembly with the signal plate
facing down.
Keep any magnetized objects away from the signal plate.
Do not allow any magnetic materials to contact the signal
plate teeth.
JEM221G
OIL JETNJEM0073S19Check nozzle for deformation or damage.
Check oil passage for obstruction by blowing in air on nozzle
side.
If abnormality is found, clean or replace.
JEM222G
OIL JET RELIEF VALVENJEM0073S20Using a clean resin rod, press down on the check valve inside relief
valve. Check for appropriate bounce/repulsion and smooth
operation.
CYLINDER BLOCKYD
Inspection (Cont’d)
EM-80
ENGINE LUBRICATION &
COOLING SYSTEMS
SECTION
LC
CONTENTS
QG
ENGINE LUBRICATION SYSTEM..................................3
Precautions <0011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100
110011[..............3
LIQUID GASKET APPLICATION PROCEDURE............3
Preparation <0011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100
110011[..............3
SPECIAL SERVICE TOOLS........................................3
Lubrication Circuit ........................................................4
Oil Pressure Check......................................................5
Oil Pump <0011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100
1100110011001100110011[..............5
REMOVAL AND INSTALLATION.................................5
DISASSEMBLY AND ASSEMBLY................................6
INSPECTION<0011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100
110011001100110011001100110011001100110011> 7
REGULATOR VALVE INSPECTION............................7
Changing Engine Oil....................................................8
Changing Oil Filter .......................................................9
Service Data and Specifications (SDS).....................10
OIL PRESSURE CHECK..........................................10
OIL PUMP INSPECTION..........................................10
REGULATOR VALVE INSPECTION..........................10
OIL CAPACITY<0011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100
1100110011001100110011> 0
ENGINE COOLING SYSTEM........................................ 11
Precautions <0011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100
110011[............ 11
LIQUID GASKET APPLICATION PROCEDURE.......... 11
Preparation <0011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100
110011[............ 11
SPECIAL SERVICE TOOLS...................................... 11
Cooling Circuit ...........................................................12
System Check<0011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100
110011[........12
CHECKING COOLING SYSTEM HOSES...................12
CHECKING RADIATOR............................................13
CHECKING RADIATOR CAP....................................13
CHECKING COOLING SYSTEM FOR LEAKS............13
Water Pump <0011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100
11001100110011[.........14
REMOVAL AND INSTALLATION...............................14
INSPECTION<0011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100
1100110011001100110011001100110011> 4
Thermostat <0011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100
1100110011[............15
REMOVAL AND INSTALLATION...............................15
INSPECTION<0011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100
1100110011001100110011001100110011> 6
Radiator <0011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100
110011001100110011[..............16
COMPONENTS<0011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100
110011001100110011> 6
Cooling Fan <0011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100
1100110011[..........17
COMPONENTS<0011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100
110011001100110011> 7
CONTROL SYSTEM................................................17
Changing Engine Coolant..........................................17
- DRAINING ENGINE COOLANT -............................17
- REFILLING ENGINE COOLANT -...........................18
- FLUSHING COOLING SYSTEM -............................19
Radiator (Aluminum type) ..........................................20
PREPARATION<0011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100
110011001100110011> 0
DISASSEMBLY<0011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100
1100110011001100110011> 0
ASSEMBLY<0011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100
110011001100110011001100110011001100110011> 1
INSPECTION<0011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100
1100110011001100110011001100110011> 2
Overheating Cause Analysis .....................................23
Service Data and Specifications (SDS).....................24
THERMOSTAT<0011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100
1100110011001100110011> 4
RADIATOR<0011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100
1100110011001100110011001100110011001100110011> 24
COOLANT CAPACITY..............................................24
YD
ENGINE LUBRICATION SYSTEM................................25
Precautions <0011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100
110011[............25
LIQUID GASKET APPLICATION PROCEDURE..........25
Preparation <0011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100
110011[............25
SPECIAL SERVICE TOOLS......................................25
Lubrication Circuit ......................................................26
Oil Pressure Check....................................................27
Oil Pump <0011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100
1100110011001100110011[............27
REMOVAL AND INSTALLATION...............................27
DISASSEMBLY AND ASSEMBLY..............................28
OIL PUMP INSPECTION..........................................28
REGULATOR VALVE INSPECTION..........................29
Changing Engine Oil..................................................30
Oil Filter Bracket ........................................................31
REMOVAL AND INSTALLATION...............................31
Changing Oil Filter .....................................................31
REMOVAL<0011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100
11001100110011001100110011001100110011001100110011[32
INSTALLATION<0011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100
1100110011001100110011> 2
Oil Cooler <0011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100
11001100110011[.............33
REMOVAL AND INSTALLATION...............................33
Service Data and Specifications (SDS).....................34
OIL PRESSURE CHECK..........................................34
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REGULATOR VALVE INSPECTION..........................34
OIL PUMP INSPECTION..........................................34
ENGINE OIL CAPACITY...........................................34
ENGINE COOLING SYSTEM........................................35
Precautions <0011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100
110011[............35
LIQUID GASKET APPLICATION PROCEDURE..........35
Preparation <0011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100
110011[............35
SPECIAL SERVICE TOOLS......................................35
Cooling Circuit ...........................................................36
System Check<0011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100
110011[........37
CHECKING COOLING SYSTEM HOSES...................37
CHECKING RADIATOR............................................37
CHECKING RADIATOR CAP....................................37
CHECKING COOLING SYSTEM FOR LEAKS............38
Water Pump <0011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100
11001100110011[.........38
REMOVAL AND INSTALLATION...............................38
REMOVAL<0011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100
11001100110011001100110011001100110011001100110011[39
INSPECTION<0011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100
1100110011001100110011001100110011> 9
INSTALLATION<0011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100
1100110011001100110011> 9
Thermostat <0011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100
1100110011[............40
REMOVAL AND INSTALLATION...............................40
INSPECTION<0011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100
1100110011001100110011001100110011> 1
Radiator <0011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100
110011001100110011[..............41
COMPONENTS<0011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100
110011001100110011> 1
REMOVAL AND INSTALLATION...............................42
Cooling Fan <0011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100
1100110011[..........42
COMPONENTS<0011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100
110011001100110011> 2
CONTROL SYSTEM................................................42
Changing Engine Coolant..........................................43
- DRAINING ENGINE COOLANT -............................43
- REFILLING ENGINE COOLANT -...........................43
- FLUSHING COOLING SYSTEM -............................45
Radiator (Aluminum type) ..........................................46
Overheating Cause Analysis .....................................46
Service Data and Specifications (SDS).....................47
THERMOSTAT<0011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100
1100110011001100110011> 7
RADIATOR<0011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100
1100110011001100110011001100110011001100110011> 47
ENGINE COOLANT CAPACITY................................47
CONTENTS(Cont’d)
LC-2
SEM164F
AEM080
Precautions
LIQUID GASKET APPLICATION PROCEDURENJLC00141. Use a scraper to remove all traces of old liquid gasket from
mating surfaces and grooves. Also, completely clean any oil
from these areas.
2. Apply a continuous bead of liquid gasket to mating surfaces.
(Use Genuine Liquid Gasket or equivalent.)
For oil pan, be sure liquid gasket diameter is 3.5 to 4.5 mm
(0.138 to 0.177 in).
For areas except oil pan, be sure liquid gasket diameter is 2.0
to 3.0 mm (0.079 to 0.118 in).
3. Apply liquid gasket around the inner side of bolt holes (unless
otherwise specified).
4. Assembly should be done within 5 minutes after coating.
5. Wait at least 30 minutes before refilling engine oil and engine
coolant.
Preparation
SPECIAL SERVICE TOOLSNJLC0015
Tool number
Tool nameDescription
EG17650301
Radiator cap tester
adapter
NT564
Adapting radiator cap tester to radiator filler neck
a: 28 (1.10) dia.
b: 31.4 (1.236) dia.
c: 41.3 (1.626) dia.
Unit: mm (in)
KV99103510
Radiator plate pliers A
NT224
Installing radiator upper and lower tanks
KV99103520
Radiator plate pliers B
NT225
Removing radiator upper and lower tanks
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ENGINE COOLING SYSTEMQG
Precautions
LC-11
Cooling CircuitNJLC0016
SLC317B
System CheckNJLC0017WARNING:
Never remove the radiator cap when the engine is hot. Serious
burns could occur from high pressure fluid escaping from the
radiator.
Wrap a thick cloth around the cap. Slowly turn it a quarter turn
to allow built-up pressure to escape. Carefully remove the cap
by turning it all the way.
CHECKING COOLING SYSTEM HOSESNJLC0017S01Check hoses for the following:
Improper attachment
Leaks
Cracks
Damage
Loose connections
Chafing
Deterioration
ENGINE COOLING SYSTEMQG
Cooling Circuit
LC-12
CHECKING RADIATORNJLC0017S04Check radiator for mud or clogging. If necessary, clean radiator as
follows.
Be careful not to bend or damage the radiator fins.
When radiator is cleaned without removal, remove all sur-
rounding parts such as cooling fan, rediator shroud and horns.
Then tape the harness and connectors to prevent water from
entering.
1. Apply water by hose to the back side of the radiator core ver-
tically download.
2. Apply water again to all radiator core surfaces once per
minute.
3. Stop washing if any stains no longer flow out from the radia-
tor.
4. Blow air into the back side of radiator core vertically download.
Use compressesd air lower than 490 kPa (4.9 bar, 5 kg/cm
2,
71 psi) and keep distance more than 30 cm (11.8 in).
5. Blow air again into all the radiator core surfaces once per
minute until no water sprays out.
SLC613-A
CHECKING RADIATOR CAPNJLC0017S03To check radiator cap, apply pressure to cap with a tester.
Radiator cap relief pressure:
Standard
78 - 98 kPa
(0.78 - 0.98 bar, 0.8 - 1.0 kg/cm
2, 11 - 14 psi)
Limit
59 - 98 kPa
(0.59 - 0.98 bar, 0.6 - 1.0 kg/cm
2,9-14psi)
SMA967B
Pull the negative pressure valve to open it.
Check that it closes completely when released.
SLC756AA
CHECKING COOLING SYSTEM FOR LEAKSNJLC0017S02To check for leakage, apply pressure to the cooling system with a
tester.
Testing pressure:
157 kPa (1.57 bar, 1.6 kg/cm2,23psi)
CAUTION:
Higher pressure than specified may cause radiator damage.
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ENGINE COOLING SYSTEMQG
System Check (Cont’d)
LC-13