engine MITSUBISHI LANCER IX 2006 Service Manual

11-1
GROUP 11
ENGINE
CONTENTS
ENGINE MECHANICAL <4G1> . . . . . . . . . . . . . . . . . . . . . . . . .11A
ENGINE OVERHAUL <4G1> . . . . . . . . . . . . . . . . . . . . . . . . . . .11B
ENGINE MECHANICAL <4G6> . . . . . . . . . . . . . . . . . . . . . . . . .11C
ENGINE OVERHAUL <4G6> . . . . . . . . . . . . . . . . . . . . . . . . . . .11D

12-1
GROUP 12
ENGINE
LUBRIC ATION
CONTENTS
GENERAL INFORMATIO N . . . . . . . .12-2
SERVICE SPECIFICATION . . . . . . . .12-2
LUBRICANT . . . . . . . . . . . . . . . . . . . .12-2
SEALANT . . . . . . . . . . . . . . . . . . . . . .12-3
SPECIAL TOOLS . . . . . . . . . . . . . . . .12-3
ON-VEHICLE SERVICE . . . . . . . . . . .12-4
ENGINE OIL CHECK . . . . . . . . . . . . . . . . . 12-4
ENGINE OIL REPLACEMENT . . . . . . . . . . 12-4
ENGINE OIL FILTER REPLACEMENT . . . . 12-4
OIL PRESSURE CHECK . . . . . . . . . . . . . . 12-5

GENERAL INFORMATION
ENGINE LUBRICATION12-2
GENERAL INFORMATION
M1121000100357
The lubrication method is a fully force-fed, full-flow fil-
tration type. The engine oil pump is a trochoid type
which is driven by the crankshaft <4G1>.The engine
oil pump is a gear type which is driven by the crank
-
shaft via the balancer timing belt <4G6>.
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 addi
-
tion, used engine oil contains potentially harmful con-
taminants 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 under-
pants, 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 per
-
sonal clothing.
•Where there is a risk of eye contact, eye protec-
tion should be worn, for example, chemical gog-
gles 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 clean
-
ing, the application of preparations containing
lanolin to replace the natur al 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.
SERVICE SPECIFICATION
M1121000300232
ItemStandard value
Oil pressure kPaat idle29 or more
at 3,500 r/min294 − 686
LUBRICANT
M1121000400433
ItemSpecification
Engine oil ACEA classificationA1, A2 or A3
Engine oil API classificationSG or higher
Engine oil quantity L4G1Oil filter0.3
To t a l3.3
4G6Oil filter0.3
To t a l4.3

SEALANT
ENGINE LUBRICATION12-3
SEALANT
M1121000500258
ItemSpecified sealantRemark
Oil pressure switch3M ATD Part No. 8660 or equivalentSemi-drying sealant
SPECIAL TOOLS
M1121000600675
ToolNumberNameUse
B991396
MB991396Oil filter wrenchRemoval and inst allation
of e
ngin e oil filter (Whe n
using
the eng ine o il f ilte r
of MD36093
5)
MB991828
MB991828Oil filter wrenchRemoval and inst allation
of e
ngin e oil filter (Whe n
using
the eng ine o il f ilte r
of MD34863
1 and
MD3
65876)
MB991610
MB991 610Oil filter wrenchRemoval and inst allation
of e
ngin e oil filter (Whe n
using
the eng ine o il f ilte r
of MD35600
0)
MD998012Oil pres su re swit ch
wrenchRemoval and inst allation
of o
il p r essure switch

ON-VEHICLE SERVICE
ENGINE LUBRICATION12-4
ON-VEHICLE SERVICE
ENGINE OIL CHECKM1121000900342
ACX00892 AC
Good
Maximum Minimum
<4G1>
AC205268
Maximum MinimumGood
AC
<4G6>
1.
Pull ou t the en gine oil level ga uge slowly and
check tha t the o il level is in t he illustrated range.
2.Check t hat the oil is not excessively dirty , that
th ere is no coolant or p e trol mixed in, and that it
ha s s u f f i c ie nt vi sc osi t y .
ENGINE OIL REPLACEMENT
M1121 0010 0041 6
1.S t art the engin e and allow it to war m up until the
te mpera t ure of the coola n t reaches 80
°C to 90
°C.
2.Remove the en gine oil filler ca p.
CAUTION
Use care as engine oil could be hot.
3. Remove the engine oil pan drain plug to drain
engine oil.
AC208299
Engine oil pan
AC
Engine oip pan
drain plug
Engine oip pan
drain plug
Engine oil
pan side
4. Install a new engine oil pan drain plug gasket so
that it faces in the direction shown in the
illustration, and then tighten the engine oil pan
drain plug to the specified torque.
Tightening torque: 39 ± 5 N⋅m
NOTE: Install the engine oil pan drain plug gasket
so it faces in the direction shown in the illustration.
AC301513
5. Refill with specifi ed quantity of engine oil.
Specified Engine Oil (ACEA and API classifica-
tion): ACEA A1, A2 or A3/API SG or higher
Total quantity (Includes volume inside engine
oil filter):
3.3 L <4G1>
4.3 L <4G6>
6. Install the engine oil filler cap.
7. Check engine oil level.
ENGINE OIL FILTER REPLACEMENTM1121001100383
1. Start the engine and allow it to warm up until the temperature of the coolant reaches 80
°C to 90
°C.
2. Remove the engine oil filler cap.
CAUTION
Use care as engine oil could be hot.
3. Remove the engine oil pan drain plug to drain engine oil.
4. Remove the under cover.
AC000093
MB991396
<4G1>,
MB991828
<4G1>,
MB991610
<4G6> or
commercially-
available tool
AI

ON-VEHICLE SERVICE
ENGINE LUBRICATION12-5
5. Use the respective tool in the following table to remove the engine oil filter.
NumberSpecial tool
MD348631 <4G1>Oil filter wrench (MB991828) or
equivalent
MD365876 <4G1>
MD360935 <4G1>Oil filter wrench (MB991396) or
equivalent
MD136466 <4G6>Commercially- available tool
MD322508 <4G6>
MD356000 <4G6>Oil filter wrench (MB991610) or
equivalent
6. Cle an the filt er bracket side mou n ting surfa c e.
AC103250AD
O-ring
7.Ap ply a small a m ou nt o f en gine o i l to th e O-rin g of
th e new eng ine oil f ilte r .
8.Once the O-ring of the engine oil filter is tou c hing
th e flange, use the resp ective tool in the following
t able to tighten to the specified tor que.
NumberSpecial toolTightening torque
MD348631
<4G1>Oil filter wrench
(MB991828) or
equivalentApproximately 3/4
turn (16
± 4 N⋅m)
MD365876
<4G1>
MD360935
<4G1>Oil filter wrench
(MB991396) or
equivalentApproximately 1 turn
(14
± 2 N⋅m)
MD136466
<4G6>Commercially-
available toolApproximately 3/4
turn (17
± 3 N⋅m)
MD322508
<4G6>
MD356000
<4G6>Oil filter wrench
(MB991610) or
equivalentApproximately 3/4
turn (14
± 2 N⋅m)
9.In st all the en gine oil p a n drain plu g and refill the
en gine oil (Re f er to
P.12-4).
10.Race the en gine 2−3 times, and che ck to be sure
th
at n
o
en
gin
e
oil leaks fr om in st allation sectio n of
th
e engine oil filter
.
OIL PRESSURE CHECK
M1 121 0023 0083 0
AK101640
<4G1>
Oil pressure
switch
Oil filter
AD
AK300647
AB
<4G6>
Oil filter bracket
Oil pressure switch
1.Check e ngin e oil quan tity .
AKX00294
MD998012
AF
CAUTION
Since sealant is applied to the thread of oil pres-
sure switch, take care not to damage the oil pres-
sure switch when removing it.
2. Use the special tool Oil pressure switch wrench
(MD998012) to remove the oil pressure switch.
NOTE: Remove the terminal of oil pressure switch
where the special tool Oil pressure switch wrench
(MD998012) is not fitted.
3. Install the oil pressure gauge.
NOTE: Use an adapter of PT 1/8 thread.
4. Run the engine to warm it.
5. After the engine has been warmed up, check that oil pressure is within the standard value.
Standard value:
At idle: 29 kPa or more
At 3,500 r/min: 294 − 686 kPa

ON-VEHICLE SERVICE
ENGINE LUBRICATION12-6
6. Remove the oil pressure gauge.
AKX00295AD
7.App l y t he sp ecified sealant to the thr ead of oil
pres sure sw itc h .
Specified sealan t: 3M A T D Part No. 8660 or
equival
ent
AKX00294
MD998012
AF
CAUTION
Do not start the engine within one hour after the
oil pressure switch has been installed.
8. Use the special tool Oil pressure switch wrench (MD998012) to tighten the oil pressure switch to
the specified torque.
Tightening torque:
19 ± 3 N⋅m <4G1>
10 ± 2 N⋅m <4G6>

14-1
GROUP 14
ENGINE COOLING
CONTENTS
GENERAL INFORMATION . . . . . . . .14-2
SERVICE SPECIFICATIONS . . . . . . .14-2
LUBRICANT . . . . . . . . . . . . . . . . . . . .14-3
SEALANTS . . . . . . . . . . . . . . . . . . . .14-3
SPECIAL TOOLS . . . . . . . . . . . . . . . .14-3
TROUBLESHOOTING . . . . . . . . . . . .14-5
INSPECTION CHART FOR TROUBLE
SYMPTOMS . . . . . . . . . . . . . . . . . . . . . . . . 14-5
INSPECTION PROCEDURE FOR
TROUBLE SYMPTOMS . . . . . . . . . . . . . . . 14-6
ON-VEHICLE SERVICE . . . . . . . . . . .14-21
ENGINE COOLANT LEAK CHECK . . . . . . 14-21
RADIATOR CAP VALVE OPENING
PRESSURE CHECK . . . . . . . . . . . . . . . . . . 14-21
ENGINE COOLANT REPLACEMENT . . . . 14-21
CONCENTRATION MEASUREMENT . . . . 14-22
COOLING FAN MOTOR DRIVE
CONTROL UNIT CHECK . . . . . . . . . . . . . . 14-22
FAN CONTROL RELAY CONTINUITY
CHECK . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14-23
COOLING FAN MOTOR CHECK . . . . . . . . 14-24
THERMOSTAT . . . . . . . . . . . . . . . . . .14-24
REMOVAL AND INSTALLATION . . . . . . . . 14-24
INSPECTION. . . . . . . . . . . . . . . . . . . . . . . . 14-26
WATER PUMP . . . . . . . . . . . . . . . . . .14-27
REMOVAL AND INSTALLATION <4G1> . . 14-27
REMOVAL AND INSTALLATION <4G6> . . 14-28
WATER HOSE AND WATER PIPE . .14-29
REMOVAL AND INSTALLATION <4G1> . . 14-29
REMOVAL AND INSTALLATION <4G6> . . 14-31
INSPECTION. . . . . . . . . . . . . . . . . . . . . . . . 14-32
RADIATOR . . . . . . . . . . . . . . . . . . . . .14-33
REMOVAL AND INSTALLATION <4G1> . . 14-33
REMOVAL AND INSTALLATION <4G6> . . 14-35

GENERAL INFORMATION
ENGINE COOLING14-2
GENERAL INFORMATION
M1141000100371
The cooling system is designed to keep every part of
the engine at appropriate temperature in whatever
condition the engine may be operated. The cooling
method is of the water-cooled, pressure forced circu
-
lation type in which the water pump pressurizes cool-
ant and circulates it throughout the engine. If the
coolant temperature exceeds the prescribed temper
-
ature, the thermostat opens to circulate the coolant
through the radiator as well so that the heat
absorbed by the coolant may be radiated into the air.
The water pump is of the centrifugal type and is
driven by the alternator drive belt from the crank
-
shaft. The radiator is the corrugated fin, down flow
type.
ItemSpecification
RadiatorPerformance kJ/h4G13Standard vehicles137,720
Vehicles with capacity up radiator
(option)161,288
4G18Standard vehicles161,288
Vehicles with capacity up radiator
(option)181,800
4G63181,800
A/T oil coolerPerformance kJ/h5,651
SERVICE SPECIFICATIONS
M1141000300687
ItemStandard valueLimit
Fan controller VA/C OFF1 or less-
A/C ONRepeat
8.2 ± 0.7
System voltage ± 2.6
-
High-pressure valve opening pressure of radiator cap kPa93 − 123Minimum 83
Range of coolant antifreeze concentration of radiator %30 − 60-
ThermostatValve opening temperature of
thermostat
°C
4G188 ± 1.5-
4G682 ± 1.5-
Full-opening temperature of
thermostat
°C
4G1100-
4G695-
Valve lift mm8.5 or more-

LUBRICANT
ENGINE COOLING14-3
LUBRICANT
M1141000400338
ItemSpecified coolantQuantity L
Engine coolant (including
condense tank)DIAQUEEN SUPER LONG LIFE COOLANT
or an equivalent4G15.0
4G67.0
SEALANTS
M1141000500324
ItemSpecified sealant
Cylinder block drain plug3M Nut Locking Part No.4171 or equivalent
Water pump <4G1>, Thermostat case
<4G6>, Cooling water outlet hose fitting
<4G6>MITSUBISHI GENUINE Part No.MD970389 or equivalent
SPECIAL TOOLS
M1141000600581
ToolNumberNameUse
B991502
MB991502M.U.T. -II sub
assemblyReading diagno sis co de