alternator belt MITSUBISHI LANCER 2006 Workshop Manual

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-

WATE R P U M P
ENGINE COOLING14-27
WAT E R P U M P
REMOVAL AND INSTALLATION <4G1>M1141002700421
Pre-removal and Post-installation Operation
•Engine Coolant Draining and Refilling (Refer to P.14-21).
•Valve Timing Belt Removal and Installation (Refer to
GROUP 11A P.11A-33).
AC303372
24 ± 3 N·m23 ± 2 N·m
14 ± 1 N·m
1 2
Bolt specifications
Screw diameter × length mm 8 × 50
8 × 308 × 25
AB
2
2
Sealant: Mitsubishi Genuine Part
No. MD970389 or equivalent
Removal steps
1.Alternator adjusting brace
>>A<<2.Water pump assembly
INST ALLA T ION SER VICE POINT
>>A<< WA TER PUMP ASSEMBL Y
INST
ALLA TION
1.Use a gaske t scraper o r wire brush to complet e ly
eliminate all gasket material o n the g a sket
mounting surface.
2. App l y a bead of the specified sealan t.
Specified Sealant: MITSUBISHI GENUINE
P
ART No.MD970 389 or eq uivalen t
3.With the sea l ant still wet (within 1 5 minutes af ter
th e se alant is applied), inst all the wa ter pump
a sse mbly . Do not a pply the sealant in an are a
more th an the required.

WATE R P U M P
ENGINE COOLING14-28
REMOVAL AND INSTALLATION <4G6>
M1141002700432
Pre-removal and Post-installation Operation
•Engine Coolant Draining and Refilling (Refer to P.14-21).
•Valve Timing Belt and Balancer Timing Belt Removal and
Installation (Refer to GROUP 11C
P.11C-35).
AC301467
22 ± 4 N·m23 ± 3 N·m 14 ± 1 N·m
12
3
4
N
N
Bolt specifications
Screw diameter × length mm
8 × 70 8 × 22
8 × 14
8 × 22
8 × 25
2
AB
Removal steps
1.Alternator adjusting brace
2.Water pump assembly
3.Water pump gasket
>>A<<4.Cooling water line O-ring
INST
ALLA T ION SER VICE POINT
>>A<< COOLING WA TER LINE O-RING
INST
ALLA TION
AC103005
Water pump assembly
Cooling water
line O-ring
Water pump inlet pipe
AF
Fit the coo ling water line O-ring to the groove in the
wa
ter pump in let p i pe. T hen lubricate th e co olin g
wa
ter line O-ring and the inside of the wat e r pump
assembly with wa
ter , and then insert the wa ter pu mp
inle
t pip e to the water pu mp asse mbly .

CHARGING SYSTEM
ENGINE ELECTRICAL16-3
SERVICE SPECIFICATIONS
M1161000300258
ItemStandard valueLimit
Alternator output line voltage drop (at 30 A) V−maximum 0.3
Regulated voltage ambient
temperature at voltage regulator V−20°C14.2 − 15.4−
20°C13.9 − 14.9−
60°C13.4 − 14.6−
80°C13.1 − 14.5−
Output current−70 % of normal output current
SPECIAL TOOLM1161000600163
ToolNumberNameUse
MB991519Alterna t or test harn e ssChec king th e alt e rnator
("S" te rminal volt age )
ON-VEHICLE SERV ICE
ALTERNA T O R OUTPUT LINE VOL T AGE DROP TEST
M1161 0009 0034 6
AK203361AD
Alternator Ammeter (clamp-type)
Voltmeter (digital-type)
"B" terminal Battery
This test
determine s whethe r the wiring fro m th e
altern
ator "B" termina l to t he batt e ry (+) terminal
(including the
fusible line ) is in a good condition or
not.
1.Always b e su re to check the following b e fore th e
te st.
•Alternator inst allatio n
•Drive belt tension
(Ref er to GROUP 1 1 A − On-veh icle Service <4G1>
P.11A-7 or GROUP 1 1 C − On-vehicle Service
<4G6> P.11C-7.)
•Fusible link
•Abnormal noise from the altern ator while the
eng
ine is ru nning

CHARGING SYSTEM
ENGINE ELECTRICAL16-5
OUTPUT CURRENT TEST
M1161001000368
AK203362
Alternator
Ammeter
(clamp-type)
Voltmeter
Battery
Inition switch
Engine-ECU
<M/T> or
Engine-A/T-ECU
<A/T> Load
B FR
L
S
G
+
AH
–
Charging indicator
Brake warning light
This test determine s whethe r the a l terna t or outp u t
curren
t is normal.
1.Befo re the t e st, always be sure t o che c k the
fo llowi ng.
•Alternator inst allatio n
•Battery (Refer to GROUP 54 A − Battery − On-vehi-
cle Serv ice P.54A-5).
NOTE: The battery sh ould be sligh t ly discharg ed.
The
load neede d by a fully-charge d batte ry is
in
sufficient for an accurat e test.
•Drive belt tension
(Ref er to GROUP 1 1 A − On-vehicle Service <4G1>
P.11A-7 or GROUP 1 1 C − On-vehicle Se rvice
<4G6> P.11C-7.)
•Fusible link
• Abnormal noise from the altern ator while the
eng
ine is ru nning .
2.T u rn the ignition switch to the "LOCK" (OFF)
po sit i on.
3.Disco nnect the ne gative ba ttery cable.
CAUTION
Never use clips but tighten bolts and nuts to con-
nect the line. Otherwise loose connections (e.g.
using clips) will lead to a serious accident
because of high current.
4. Connect a clamp-type DC test ammeter with a
range of 0
− 120 A to the alternator "B" terminal
output wire.
NOTE: The way of disconnecting the alternator
output wire and of connecting the ammeter is pos
-
sibly not found the problem that the output current
is dropping due to the insufficient connection
between terminal "B" and the output wire.
5. Connect a voltmeter with a range of 0 − 20 V
between the alternator "B" terminal and the earth
[Connect the (+) lead of the voltmeter to the "B"
terminal, and then con nect the (-) lead of the
voltmeter to the earth].
6. Connect the negative battery cable.
7. Connect a tachometer or the M.U.T.-II/III (Refer to GROUP 11A
− On-vehicle Service − Idle speed
check <4G1>
P.11A-11 or GROUP 11C −
On-vehicle Service − Idle speed check <4G6>
P.11C-11).
8. Leave the hood open.

CHARGING SYSTEM
ENGINE ELECTRICAL16-7
REGULATED VOLTAGE TEST
M1161001100860
AK300727AC
BatteryIgnition switch
Engine-ECU <M/T>
Engine-A/T-ECU <A/T> Ammeter (clamp-type)
Load
Blue
MB991519
Voltmeter (digital-type)Red
Yellow BlackAlternator
B
FR
L
S
G
This test determine s whethe r the volt age regulator
correctly con
t rolling t he alternato r outpu t volt a ge.
1.Always b e su re to check the following b e fore th e
te st.
•Alternator inst allatio n
•Check that the b a ttery inst a lled in th e ve hicle is
fully charg
ed.
(Refer to GROUP 54A − Battery − On-vehicle Service −
Charging
P.54A - 4).
•Drive belt tension
(Ref er to GROUP 1 1 A − On-vehicle Service <4G1>
P.11A-7 or GROUP 1 1 C − On-vehicle Se rvice
<4G6> P.11C-7.)
•Fusible link
•Abnormal noise from the a l tern ator while the
eng
ine is ru nning
2.T u rn the ignition switch to the "LOCK" (OFF)
po sit i on.
3.Disco nnect the ne gative ba ttery cable.
4.Use the special tool Alternat or test harne ss
(MB99151 9) to connect a d i git a l voltmet e r
be tween the alte rnator "S" te rmin al an d earth
[Con nect the (+) lead o f the voltmeter t o the "S"
terminal, and then con nect the (-) lead of the
voltmeter to a secure earth or to the battery (-)
te rmin al].
5.Conn ect a clamp-t y pe DC test ammete r with a
ran ge of 0
− 120 A to the alte rnator "B" te rmin al
ou
tput wire
.
NOTE: The way of d i sconnectin g the a l terna t or
o
u
tput wire an d o f conn ecting the ammete r is pos
-
sibl y no t fo und th e p r oblem th at t he outp u t cur r ent
is dro
ppin g due t o the insu fficient conne ction
b
e tween te rmin al "B" an d the o u tput wire.
6.Reconne ct the negat ive battery ca ble.
7.Conn ect a t a chometer or th e M.U.T . -II/III (Refe r to
GROUP 1 1 A
− On-veh icle Service − Idle speed
check <4G1>
P.11A - 11 or GROUP 1 1 C −
On-vehicle Service − Idle speed check <4G6>
P.11C-11).
8. T u rn the ignition switch to the "ON" position an d
ch ec k t h at th e rea d i n g on t h e vo lt me te r i s eq u a l t o
th e batte ry volt age.
NOTE: If the volt a ge is 0 V , the cause is proba bly
a
n
open circuit in th e wire or fusible link betwee n
th
e alt
e
rnator "S" t e rminal a nd the battery (+) ter
-
minal.
9.T u rn all lamp s and accessorie s of f.
10.St a r t the en gine .
11 . I ncre ase t he eng ine speed to 2,5 00 r/min.
12.Read the va lue disp layed on the voltmeter when
th e alt e rnator output curren t alte rnator b e comes
1 0 A or le ss.
13.If the volt age re adin g conf orms t o the va lue in the
volt age regulation , then the volt age re gula t or is
o perating normally .

CHARGING SYSTEM
ENGINE ELECTRICAL16-12
ALTERNATOR ASSEMBLY
REMOVAL AND INSTALLATION <4G1>
M1161001400548
Pre-removal Operation
•Under Cover Removal
•Drive Belt Removal (Refer to GROUP 11A - Crankshaft
Pulley
P.11A-16).
Post-installation Operation
•Drive Belt Installation (Refer to GROUP 11A - Crankshaft
Pulley P.11A-16).
•Drive Belt Tension Adjustment (Refer to GROUP 11A -
On-vehicle Service P.11A-7).
•Under Cover Installation
AC303729
1
2
4
3
44 ± 10 N·m
23 ± 2 N·m 24 ± 3 N·m 12 ± 2 N·m
AB
13 ± 3 N·m
Removal steps
1.Power steering pressure hose
clamp
2.Alternator connector and terminal
3.Alternator adjusting brace
<<A>>4.Alternator assembly
REMOV
A L SER VICE POINT
<<A>> ALTERNA T O R ASSEMBL Y
REMOV
A L
Remove the a l tern ator assembly from above the
vehicle.

AC208762
A
AD
Timing belt front
upper coverTiming belt front
lower coverEngine crank
angle sensor
<4G1>
Engine crank angle
sensor connector
AC302008
A<4G6>
ABHeat protector
Crankshaft
sprocket
Engine crank angle
sensor connectorEngine crank
angle sensor
AC301752
B
AB
Ignition coil 2
<4G1>
Engine control detonation
sensor connector
Engine control
detonation sensor
AC302009
B
AB
Hydraulic unit
<4G6>
Alternator
Engine control detonation
sensor connectorEngine control
detonation sensor
AC208541
C
AE
<4G1>
Throttle body
Throttle body
throttle sensor
Inlet manifold absolute pressure sensor
(incorporating intake air temperature sensor)
AC302479
AB
C
Throttle body
<4G6>
Throttle body
throttle sensor
SENSOR
COMPONENT LOCA TIONS70-7