1997 MITSUBISHI TRITON oil

GENERAL ± Precautions Before Service00-28
Other precautions:

Avoid prolonged and repeated contact with oils,
particularly used engine oils.

Wear protective clothing, including impervious gloves
where practicable.

Avoid contaminating clothes, particularly underpants, with
oil.

Do not put oily rags in pockets, the use of overalls without
pockets will avoid this.

Do not wear heavily soiled clothing and oil-impregnated
foot-wear. Overalls must be cleaned regularly and kept
separately from personal clothing.

Where there is a risk of eye contact, eye protection should
be worn, for example, chemical goggles or face shields;
in addition an eye wash facility should be provided.

Obtain First Aid treatment immediately for open cuts and
wounds.

Wash regularly with soap and water to ensure all oil is
removed, especially before meals (skin cleansers and
nail brushes will help). After cleaning, the application of
preparations containing lanolin to replace the natural skin
oils is advised.

Do not use petrol, kerosine, diesel fuel, gas oil, thinners
or solvents for cleaning skin.

Use barrier creams, applying them before each work
period, to help the removal of oil from the skin after work.

If skin disorders develop, obtain medical advice without
delay.

11A-2
ENGINE <4G6>
CONTENTS11109000399
GENERAL INFORMATION 3. . . . . . . . . . . . . . . . . .
SERVICE SPECIFICATIONS 3. . . . . . . . . . . . . . . . .
SEALANT 5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SPECIAL TOOLS 5. . . . . . . . . . . . . . . . . . . . . . . . . . .
ON-VEHICLE SERVICE 7. . . . . . . . . . . . . . . . . . . . .
Drive Belt Tension Check and Adjustment 7. . . . .
Ignition Timing Check and Adjustment 10. . . . . . .
Idle Speed Check 11. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Idle Mixture Check 11. . . . . . . . . . . . . . . . . . . . . . . . . . .
Compression Pressure Check 12. . . . . . . . . . . . . . . .
Manifold Vacuum Check 13. . . . . . . . . . . . . . . . . . . . . Lash Adjuster Check 14. . . . . . . . . . . . . . . . . . . . . . . .
CAMSHAFT OIL SEAL 16. . . . . . . . . . . . . . . . . . . .
OIL PAN, OIL SCREEN 19. . . . . . . . . . . . . . . . . . . .
CYLINDER HEAD GASKET 21. . . . . . . . . . . . . . . .
TIMING BELT, TIMING BELT B 26. . . . . . . . . . . .
CRANKSHAFT FRONT OIL SEAL 32. . . . . . . . . .
CRANKSHAFT REAR OIL SEAL 35. . . . . . . . . . .
ENGINE ASSEMBLY 37. . . . . . . . . . . . . . . . . . . . . .

ENGINE <4G6> ± General Information/Service Specifications11A-3
GENERAL INFORMATION11100010322
Items4G634G64
Total displacement m
1,9972,351
Bore y Stroke mm85.0 x 88.086.5 x 100.0
Compression ratio9.59.5
Combustion chamberPentroof typePentroof type
Camshaft arrangementSOHCSOHC
Number of valve
Intake88
Number of valve
Exhaust88
Intake
OpeningBTDC 11
BTDC 18

Valve timing
Intake
ClosingABDC 53
ABDC 58

Valve timing
Exhaust
OpeningBBDC 63
BBDC 58

Exhaust
ClosingATDC 21
ATDC 18

Fuel system
Electronic control
multipoint fuel
injectionElectronic control
multipoint fuel
injection
Rocker armRoller typeRoller type
Auto-lash adjusterEquippedEquipped
SERVICE SPECIFICATIONS11100030342
ItemsStandard valueLimit
Alternator drive
belt
Tension NWhen checked294 ± 490±
belt
tension
When a used belt is installed343 ± 441±
When a new belt is installed490 ± 686±
Deflection
(Reference
When checked7.0 ± 9.0±
(Reference
value) mmWhen a used belt is installed7.5 ± 8.5±
When a new belt is installed5.5 ± 7.5±
Power steering
oilpumpdrive
Tension NWhen checked294 ± 490±
oil um drive
belt tensionWhen a used belt is installed343 ± 441±
When a new belt is installed490 ± 686±
Deflection
(Reference
When checked5.5 ± 7.5±
(Reference
value) mmWhen a used belt is installed6.0 ± 7.0±
When a new belt is installed4.0 ± 6.0±

ENGINE <4G6> ± Engine Assembly11A-39
REMOVAL SERVICE POINTS
A
POWER STEERING OIL PUMP ASSEMBLY AND
A/C COMPRESSOR ASSEMBLY REMOVAL
1. Remove the oil pump and A/C compressor (with the hose
attached).
2. Suspend the removed oil pump (by using wire or similar
material) at a place where no damage will be caused
during removal/installation of the engine assembly.
B
ENGINE ASSEMBLY REMOVAL
1. Check that all cables, hoses, harness connectors, etc.
are disconnected from the engine.
2. Lift the chain block slowly to remove the engine assembly
upward from the engine compartment.
INSTALLATION SERVICE POINT

AENGINE ASSEMBLY INSTALLATION
Install the engine assembly. When doing so, check carefully
that all pipes and hoses are connected, and that none are
twisted, damaged, etc.

ENGINE <4D5> ± Service Specifications/Sealants11B-3
SERVICE SPECIFICATIONS11100030359
ItemsStandard valueLimit
Alternator drive belt
tension (for each
Tension NWhen checked245 ± 441±
tension (for each
belt)When a used belt is installed294 ± 392±)
When a new belt is installed392 ± 588±
Deflection
(Reference
When checked12.0 ± 17.0±
(Reference
value) mmWhen a used belt is installed13.0 ± 16.0±)
When a new belt is installed10.0 ± 13.0±
Power steering oil
pump drive belt ten
Tension NWhen checked294 ± 490±
pump drive belt ten-
sionWhen a used belt is installed343 ± 441±
When a new belt is installed490 ± 686±
Deflection
(Reference
When checked8.0 ± 12.0±
(Reference
value) mmWhen a used belt is installed9.0 ± 11.5±)
When a new belt is installed6.0 ± 8.0±
A/C compressor
drive
Tension NWhen checked320 ± 400±
drive
belt tensionWhen a used belt is installed320 ± 400±
When a new belt is installed480 ± 560±
Deflection
(Reference
When checked6.0 ± 7.0±
(Reference
value) mmWhen a used belt is installed6.0 ± 7.0±)
When a new belt is installed4.5 ± 5.5±
Valve clearance (at hot) mm0.25±
Injection timing (Value indicated on dial gauge mm)9
ATDC (1 + 0.03)±
Idle speed r/min750 + 100±
Idle up engine speed for ABS r/min1,900 + 100±
Compression pressure kPa3,040Min. 2,200
Compression pressure difference of all cylinder (at engine speed of 280
r/min) kPa±Max. 300
Timing belt tension mm4 ± 5±
Timing belt B tension mm4 ± 5±
SEALANTS11100050270
ItemsSpecified sealantRemarks
Oil panMITSUBISHI GENUINE PART
MD970389 or equivalentSemi-drying sealant
Semi-circular packing and rocker
cover seal, and cylinder head seal3M ATD Part No. 8660 or equivalent

C
RANKSH AFT R EA R O IL S EA L 11 200370249
R EM OVA L A ND IN STA LLA TIO N 1
27 ± 1 37 N m
5
7 432
1
R em oval s te p s
 A

C 1. Fly w heel a sse m bly < M /T >
 A

C 2. A dapto r p la te < A /T >
3 . D riv e p la te < A /T >
4 . C ra nksh aft a dapto r < A /T > 5
. O il s e al c a se
6 . G aske t

B 7. O il s e para to r

A 8. O il s e al
R EM OVA L S ER VIC E P O IN T
 A
FLY W HEEL < M /T >/A DAPTO R P LA TE < A /T >
R EM OVA L
U se th e s p ecia l to ol to s e cu re th e fly w heel o r a dapto r p la te
a nd r e m ove th e b olt .
I N STA LLA TIO N S ER VIC E P O IN TS

A OIL S EA L IN STA LLA TIO N M
D998376

ENGINE <4D5> ± Engine Assembly11B-35
REMOVAL SERVICE POINTS
A
POWER STEERING OIL PUMP ASSEMBLY AND
A/C COMPRESSOR ASSEMBLY REMOVAL
1. Remove the oil pump and A/C compressor (with the hose
attached).
2. Suspend the removed oil pump (by using wire or similar
material) at a place where no damage will be caused
during removal/installation of the engine assembly.
B
ENGINE ASSEMBLY REMOVAL
1. Check that all cables, hoses, harness connectors, etc.
are disconnected from the engine.
2. Lift the chain block slowly to remove the engine assembly
upward from the engine compartment.
INSTALLATION SERVICE POINT

AENGINE ASSEMBLY INSTALLATION
Install the engine assembly. When doing so, check carefully
that all pipes and hoses are connected, and that none are
twisted, damaged, etc.

ENGINE LUBRICATION ± General Information12-2
GENERAL INFORMATION12100010053
The lubrication method is a fully force-fed, full-flow
filtration type.The corrugate fin type of engine oil cooler have
been adopted, and installed forward of the radiator.
<4D56>
Items4G634G644D56
Oil pump typeInvolute gear typeInvolute gear typeTrochoid type
Drive methodTiming beltTiming beltCrankshaft
ENGINE OILS
Health Warning
Prolonged and repeated contact with mineral oil
will result in the removal of natural fats from the
skin, leading to dryness, irritation and dermatitis.
In addition, used engine oil contains potentiallyharmful contaminants which may cause skin cancer.
Adequate means of skin protection and washing
facilities must be provided.
Recommended Precautions
The most effective precaution is to adapt working
practices which prevent, as far as practicable, the
risk of skin contact with mineral oils, for example
by using enclosed systems for handling used engine
oil and by degreasing components, where
practicable, before handling them.
Other precautions:

Avoid prolonged and repeated contact with oils,
particularly used engine oils.

Wear protective clothing, including impervious
gloves where practicable.

Avoid contaminating clothes, particularly
underpants, with oil.

Do not put oily rags in pockets, the use of
overalls without pockets will avoid this.

Do not wear heavily soiled clothing and
oil-impregnated foot-wear. Overalls must be
cleaned regularly and kept separate from
personal clothing.
Where there is a risk of eye contact, eye
protection should be worn, for example,
chemical goggles or face shields; in addition
an eye wash facility should be provided.

Obtain First Aid treatment immediately for open
cuts and wounds.

Wash regularly with soap and water to ensure
all oil is removed, especially before meals (skin
cleansers and nail brushes will help). After
cleaning, the application of preparations
containing lanolin to replace the natural skin
oils is advised.

Do not use petrol, kerosine, diesel fuel, gas
oil, thinners or solvents for cleaning skin.

Use barrier creams, applying them before each
work period, to help the removal of oil from
the skin after work.

If skin disorders develop, obtain medical advice
without delay.