ron MITSUBISHI LANCER 2006 Workshop Manual
Page 55 of 800
INLET MANIFOLD
INTAKE AND EXHAUST15-5
INLET MANIFOLD
REMOVAL AND INSTALLATION <4G1>M1151003000749
Pre-removal Operation
•Fuel Line Pressure Reduction (Refer to GROUP 13A - 
On-vehicle Service 
P.13A-372).
•Engine Coolant Draining (Refer to GROUP 14 - On-vehi-
cle Service P.14-21).
•Strut Tower Bar Removal (Refer to GROUP 42 P.42-9).
•Throttle Body Assembly Re moval (Refer to GROUP 13A 
P.13A-383).
•Fuel Delivery Pipe and Fuel Injector Assembly Removal 
(Refer to GROUP 13A 
P.13A-381).
Post-installation Operation
•Fuel Delivery Pipe and Fuel Injector Assembly Installation 
(Refer to GROUP 13A 
P.13A-381).
•Throttle Body Assembly Inst allation (Refer to GROUP 
13A 
P.13A-383).
•Strut Tower Bar Installati on (Refer to GROUP 42 P.42-9).
•Engine Coolant Supplying (Refer to GROUP 14 - On-vehi-
cle Service P.14-21).
•Accelerator Cable Adjustment (Refer to GROUP 17 - 
On-vehicle Service 
P.17-2).
•Fuel Leak Check
AC303642AB
15
36
5
4 12
10
7
1
2
11
9 13
14
21 ± 4 N·m
9.0 ± 1.0 N·m
9.0 ± 1.0 N·m
18 ± 2 N·m
18 ± 2 N·m 18 ± 2 N·m
5.0 ± 1.0 N·m
31 ± 3 N·m
49 ± 9 N·m
N
N
N
8
Removal steps 
1.Inlet manifold absolute pressure sensor
2.Engine control pressure sensor O-ring
3.Engine control detonation sensor 
connector
4.T/M housing front lower cover stay (L.H.)
5.Battery wiring harness clamp connection
6.Inlet manifold stay
7.Brake booster vacuum hose connection
8.Emission control equip hose connection
9.Fuel vapour control hose connection
10.Inlet manifold stay
11 .Inlet manifold
12.Inlet manifold gasket
13.EGR valve
14.EGR valve gasket
15.Emission vacuum hose & pipe and 
emission solenoid  valve assembly
Removal steps (Continued) 
Page 58 of 800
Removal steps 
1.Front exhaust pipe connection
2.Exhaust pipe gasket
<<A>>>>A<<3.Engine control oxygen sensor (front)
4.Engine oil level gauge and guide 
assembly
5.Engine oil filler O-ring
6.Exhaust manifold cover
7.Exhaust manifold bracket
8.Exhaust manifold
9.Exhaust manifold gasket
EXHAUST MANIFOLD
INTAKE AND EXHAUST15-8
REMOVAL SERVICE POINT
<<A>> ENGINE CONTROL OXYGEN SEN-
SOR (FRONT) REMOVAL
AC212566AC
MD998770
Engine control 
oxygen sensor 
(front)
Use spe c ia l tool oxyg en sen s or wrench (MD9987 70) 
to remove t
he eng ine contro l oxygen  sen s or (fro nt).
INSTALLA T ION SER VICE POINT
>>A<< ENGINE CONT ROL OXYGEN SEN-
SOR (FRONT) INSTALLA TION
AC212566AC
MD998770
Engine control 
oxygen sensor 
(front)
Use spe c ia l tool  oxyg en sen s or wrench (MD9987 70) 
to inst
all  the eng ine  contro l oxyge n  sen s or (f ront). 
Page 59 of 800
EXHAUST MANIFOLD
INTAKE AND EXHAUST15-9
REMOVAL AND INSTALLATION <4G6>
M1151003300579
Pre-removal and Post-installation Operation
Under cover Removal and Installation
AC30368050 ± 10 N·m
44 ± 5 N·m
35 ± 6 N·m14 ± 1 N·m
14 ± 1 N·m
49 ± 5 N·m 29 ± 3 N·m
29 ± 3 N·m
N
3
4
1 2
5
N
8 944 ± 5 N·m
AB
1049 ± 5 N·m
6
7
9.0 ± 2.0 N·m 49 ± 9 N·m
Removal steps 
1.Front exhaust pipe connection
2.Exhaust pipe gasket
<<A>>>>A<<3.Engine control oxygen sensor (front)
4.Exhaust manifold cover
5.Exhaust manifold bracket
6.Starter cover
7.Starter cover bracket
8.Engine hanger
9.Exhaust manifold
10.Exhaust manifold gasket
Removal steps (Continued) 
Page 60 of 800
EXHAUST PIPE AND MAIN MUFFLER
INTAKE AND EXHAUST15-10
REMOVAL SERVICE POINT
<<A>> ENGINE CONTROL OXYGEN SEN-
SOR (FRONT) REMOVAL
AC212566AC
MD998770
Engine control 
oxygen sensor 
(front)
Use spe c ia l tool oxyg en sen s or wrench (MD9987 70) 
to remove t
he eng ine contro l oxygen  sen s or (fro nt).
INSTALLA T ION SER VICE POINT
>>A<< ENGINE CONT ROL OXYGEN SEN-
SOR (FRONT) INSTALLA TION
AC212566AC
MD998770
Engine control 
oxygen sensor 
(front)
Use spe c ia l tool  oxyg en sen s or wrench (MD9987 70) 
to inst
all  the eng ine  contro l oxyge n  sen s or (f ront).
INSPECTIONM1151 0034 0054 3
Chec k the fo llowing point s; rep l ace the p a rt  if a p r ob-
lem is found.
Exhaust Manifold Check
1.Check f o r damage o r  cracking of a n y p a rt.
2.Using a  straight e dge an d a fee l er ga uge, check 
fo r distortio n  of th e cylin der he ad in st allation  
surface.
St a ndard val ue: 0.15  mm or les s  
Limit: 0.20  mm
EXHAUST PIPE AND MAI N  MUFFLER
REMOVA L AND INST ALLA TION
M1151 0087 0096 9
AC303694AC
1
3
50 ± 10 N·m
2
7
N
N
45
8 4
N9
10
59 ± 10 N·m
45 ± 5 N·m
13 ± 2 N·m
45 ± 5 N·m
13 ± 2 N·m
10
<4G1> 
Page 61 of 800
AC303695AC
1
3
50 ± 10 N·m
2
7
N
N
45
8 4
N9
10
59 ± 10 N·m
45 ± 5 N·m
13 ± 2 N·m
45 ± 5 N·m
13 ± 2 N·m
10
<4G6-M/T>
AC504798AB
<4G6-A/T> 1
2
3N
4
7N8
N9
10
13 ± 2 N·m
13 ± 2 N·m
45 ± 5 N·m
59 ± 10 N·m
6N
10
4
50 ± 10 N·m
13 ± 2 N·m
13 ± 2 N·m
50 ± 10 N·m
Exhaust main muffler removal 
steps
 
1.Exhaust main muffler
3.Exhaust pipe gasket
4.Exhaust muffler hanger
Centre exhaust pipe removal 
steps
 
2.Centre exhaust pipe
3.Exhaust pipe gasket
6.Exhaust pipe gasket <4G6-A/T>
8.Exhaust pipe gasket <4G1, 
4G6-M/T>
Front exhaust pipe removal 
steps
 
<<A>>>>A<<5.Engine control oxygen sensor 
(rear) <4G1, 4G6-M/T>
7.Front exhaust pipe
8.Exhaust pipe gasket
9.Exhaust pipe gasket
10.Exhaust muffler hanger
EX HAUS T PIPE AND MAIN MU FFLER
INTAKE AN D EXHAU ST15-11 
Page 64 of 800
CHARGING SYSTEM
ENGINE ELECTRICAL16-2
CHARGING SYSTEM
GENERAL INFORMATIONM1161000100522
The charging system uses the alternator output to 
keep the battery charged at a constant level under 
various electrical loads.
OPERATION
AKX00183
VoltageTime
Approximately
14.4 V
AC
Rota tion of  the excited fi eld coil gene rates AC volt-
age in the sta t or .
This alternatin g cur r ent is rectified throu gh diodes to 
DC volt
age h a ving a waveform sh own in t he illustra
-
tion.
The average outpu t volt a ge flu c tua t es slightly with 
the alternato
r  load  con d ition.
When the ign i tion switch is t u rned on,  current  flows in 
the field coil and initial e
x cit a tion  of the  field coil 
occurs. 
When the st ator  coil beg ins to gen erate p o wer af ter 
the eng
ine  is st a r ted, th e fie l d coil is  excited  by th e 
output 
curren t  of th e st ator coil. 
The alternator  outpu t volt a ge rises as th e fie l d cur-
rent increa ses and it falls a s  the  field cu rrent 
decre
ases. Whe n  the b a ttery volt a ge (alternato r  "S" 
terminal volt
ag e) reaches  a regulated  volt ag e of 
approximately 14.4
 V ,  the field current  is  cut o f f. 
When th
e batte ry volt age  drop s be low the  regulated 
volt
ag e, the  volt ag e regulator re gulat es th e outp u t 
volt
ag e to a const ant level by contro lling the field cur
-
rent. 
In addition, when th e fie l d current is const a n t, the 
altern
ator ou tput volt age  rise s as the e ngine  spe ed 
increase
s .
SYSTEM DIAGRAM
AK400308
Alternator
B
Stator coil
Engine-ECU  <M/T> or
Engine-A/T-ECU <A/T>
G
SL
FR
<4G1>
Voltage regulator Charge warning lightIgnition switch
Battery
Field coil
+
–
AB
AL TERNA T O R SPECIFICA T IONS
Item4G14G6
Ty p eBattery voltage sensing
Rated output V/A12/8012/110
Voltage regulatorElectronic built-in type 
Page 77 of 800
CHARGING SYSTEM
ENGINE ELECTRICAL16-15
 DISASSEMBLY AND REASSEMBLY
M1161001600166
AK202845
1
2 3
4
5
6
7
8 9
10
11
12
1314
AE
4.4 ± 1.0 N·m
3.7 ± 0.7 N·m
189 ± 19 N·m
3.7 ± 0.7 N·m
Disassembly steps 
<<A>>1.Front bracket assembly
<<B>>2.Alternator pulley
>>B<<3.Rotor
4.Rear bearing
5.Bearing retainer
6.Front bearing
7.Front bracket
<<C>>8.Stator
9.Plate
<<C>>>>A<<10.Regulator assembly
11 .Brush
12.Rubber packing
13.Rectifier
14.Rear bracket
Disassembly steps (Continued) 
Page 78 of 800
CHARGING SYSTEM
ENGINE ELECTRICAL16-16
DISASSEMBLY SERVICE POINTS
<<A>>FRONT BRACKET ASSEMBLY 
REMOVAL
AK202718
CAUTION
Do not insert the screwdriver blades too deep. 
Doing so could damage the stator coil.
Insert the blades of screwdrivers between the front 
bracket assembly and stator core, and pry and sepa
-
rate them with the screwdrivers.
<<B>>ALTERNATOR PULLEY REMOVAL
AK202714
CAUTION
Perform operation carefully not to damage the 
rotor.
Clamp the rotor in a vise with the pulley facing up to 
remove the pulley.
<<C>>STATOR / REGULATOR ASSEMBLY 
REMOVAL
AK202778
Solder
Solder
Rectifier 
assembly
AB
CAUTION
•Use a 180 − 250 W soldering iron, and finish 
unsoldering within four seconds. Diodes will 
be damaged by heat if unsoldering time is too 
long.
•Avoid applying undue force to the diode 
leads.
1. Unsolder the stator leads from the main diode of  the rectifier assembly when the stator is removed.
2. When removing the rectifier assembly from the regulator assembly, undo the soldered points on 
the rectifier assembly.
REASSEMBLY SERVICE POINTS
>>A<<REGULATOR ASSEMBLY INSTAL-
LATION
AK202779
Wire
AB
AK202830
Rear bracket
Brush
Wire
AB
After installing the regulator assembly, insert a piece 
of wire through the hole in the rear bracket while 
pressing the brush to keep the brush against move
-
ment.
NOTE: Holding the brush with the wire facilities 
installation of the rotor. 
Page 85 of 800
STARTING SYSTEM
ENGINE ELECTRICAL16-23
STARTER MOTOR ASSEMBLY INSPECTION
M1162001100205
PINION GAP ADJUSTMENT
AK300648AB
<4G1>
Switch
S M
Wire Battery
Starter
motor
B
AKX01238
<4G6>
B
M S
battery Switch
Starter 
motorWire
AG
1.
Disco nnect the field  coil wire f r om th e M-te rmin al 
of  the magnet ic switch.
2.Conn ect a  12-volt b a ttery between  the S-termina l  
an d M-t e rminal.
CAUTION
This test must be performed quickly (in less than 
10 seconds) to prevent the coil from burning.
3. Set the switch to "ON", and the pinion will move out.
AKX00198
Stopper
Pinion gap
Pinion
AC
4. Check the pinion-to-stopper clearance (pinion 
gap) with a feeler gauge.
Standard value: 0.5 − 2.0 mm
AKX00199
5. If the pinion gap is out of specification, adjust by  adding or removing gasket(s) between the 
magnetic switch and front bracket.
MAGNETIC SWITCH PULL-IN TEST
AK300649AB
<4G1>
SM
Wire Battery
Starter
motor
B
AKX01242
<4G6>
SB
M
Battery
Starter 
motorWire
AF
1. Disconnect the field coil wire from the M-terminal 
of the magnetic switch.
CAUTION
This test must be performed quickly (in less than 
10 seconds) to prevent the coil from burning.
2. Connect a 12-volt battery between the S-terminal and M-terminal.
3. If the pinion moves out, the pull-in coil is good. If it doesn't, replace the magnetic switch. 
Page 88 of 800
STARTING SYSTEM
ENGINE ELECTRICAL16-26
DISASSEMBLY AND REASSEMBLY
M1162001200202
AK201881
141211
20
1
1516
17 18 19
13 10
2
43
5
7
6
8
9
AG
Disassembly steps 
1.Screw
<<A>>2.Magnetic switch
3.Screw
4.Bolt
5.Rear bracket
6.Brush holder
7.Rear bearing
8.Armature
9.Yoke assembly
10.Packing A
11 .Packing B
12.Plate
13.Planetary gear
14.Lever
<<B>>>>A<<15.Snap ring
<<B>>>>A<<16.Stop ring
17.Overrunning clutch
18.Internal gear
19.Planetary gear shaft
20.Front bracket
DISASSEMBL Y SER V ICE POINTS
<<A>> MA GNETIC SW ITCH REM O V A L
AK201882
B terminal
M terminal
S terminal
AC
CAUTION
Do not clamp the yoke assembly with a vise.
Disconnect the lead from the M terminal of the mag-
netic switch.