light MITSUBISHI LANCER EVOLUTION VIII 2004 Workshop Manual

GENERAL – OVERVIEW OF THE LANCER EVOLUTION VIII MR02
Lancer Evolution VIII MR Lancer Evolution VIII
GHCT9ASNDFZRS (5M/T)GHCT9ASNDFZRS (5M/T)
SJDFZRS (6M/T)SJDFZRS (6M/T)
SJGFZGSRSJGFZGSR
Overview of the Lancer Evolution VIII MR
Differences from the Lancer Evolution VIII
SectionDifference from Lancer Evolution VIIIPage
Change to cam profile (6 M/T)15
Enlarged turbo nozzle diameter (6 M/T)16
Adoption of tail pipe with builtin sound proofing in exhaust main
silencer (6 M/T)17
Addition of wastegate solenoid valve (1 ‡ 2)*118
Change to catalyst volume (2.0 l. ‡ 1.5 l.) (6 M/T)
Engine
Enlarged engine oil cooler
Power trainChange to super AYC differential21
Installation of Bilstein shock absorbers*231
Optional BBS 17inch alloy wheels (new design)31
Drive control
Black finish on spokes of Momo genuine leather steering wheel
(Type A) (GSR)
Aluminium used in roof panel and side door beams41
Change to body colour41
Body
Boot lid opener fitted as standard (RS)
Addition of Evolution MR logo51Exterior
Outer panel on rear spoiler and “Lancer” logo changed to dark grey
Ornamentation added to carbon finish instrument panel
Centre panel changed to black
Shift lever with special Lancer Evolution MR logo plate (6 M/T)
Door trim fabric changed
Interior
Recaro seat fabric changed to suede finish allround (GSR)
Change to combination meter71
Black outs on extensions of headlights (discharge) and rear
combination lamps
Equipment
Adoption of roof aerial (RS)
Notes:*1: The No.2 wastegate solenoid valve does not operate in vehicles with 5 M/T transmission.*2: Joint development of special shock absorbers for the Lancer Evolution VIII MR, with the German firm, Bilstein.

11ENGINE (4G6) – GENERAL
SECTION 1
ENGINE (4G6)
CONTENTS
General ....................................................11
1. Major Specifications ....................................11
2. Engine Performance Curve.........................12
Base Engine (6 M/T) ...............................12
1. Cylinder head gasket...................................12
2. Pistons ..........................................................13
3. Piston rings (2nd) ........................................134. Oil rings ........................................................14
5. Counterbalance shaft .................................14
6. Camshaft.......................................................15
Intake / Exhaust System (6 M/T)............16
1. Exhaust system ...........................................16
Control system (6 M/T) ...........................18
1. Supercharging pressure control ..............110
General
The 4G63T/C engine fitted in the Lancer Evolution VIII MR is basically the same as the 4G63T/C engine used in the Lancer
Evolution VIII.
The basic structure is the same in both the 6M/T (6speed) and 5M/T (5speed) versions, but the following improvements have
been made to the 6M/T version, in order to achieve higher performance.
• Adoption of 5ply cylinder head gasket
• Addition of Vshaped groove in piston , and modified shape in cooling channel
• Reduced oil consumption by increasing tension in piston rings and reducing endtoend gap
•Extra durability and reduced oil consumption by using new treatment on outer surface of oil ring side rail, and altering
thickness
•Lighter counterbalance shaft
• Increased output at high engine speeds by modifying intake cams
Major Specifications
Item 6 M/T5M/T
Total Displacement cc1997
Combustion chamberPentroof type
Bore x stroke (mm)85.0 x 88.0
Compression ratio8.8
Camshaft arrangementDOHC4 valve
FuelPremium unleaded
Max. output (kW/rpm)206/6500
Max. torque (Nm/rpm)400/3500392/3500
Fuel systemElectronic controlled multipoint fuel injection
Ignition systemElectronic controlled twocoil
Lash adjusterEquipped

ENGINE (4G6) – GENERAL, BASE ENGINE (6 M/T)18
Control system (6M/T)
The following changes have been made, based on the control system in the 4G63DOHCT/C engine fitted in the current
Lancer Evolution VIII.
* Addition of wastegate solenoid valve (1 valve –> 2 valves)
System Block Diagram
Air flow sensor (AFS)
Air temperature sensor
Atmospheric pressure sensor
Water temperature sensor
Throttle position sensor (TPS)
A/C switch
A/C load signal
Cam position sensor
Crank angle sensor
Alternator FR terminal
Vehicle speed sensor
Power steering fluid pressure
switch
Knock sensor
Intercooler water spray (auto)
Intercooler water spray (manual)
O
2sensor
Ignition switch –IG
Ignition switch –STPower supplyEngine ECU
Fuel injection control
Idle speed control (ISC)
Ignition timing control
Engine control relay control
Fuel pump relay control
A/C relay control
Fan motor control (radiator)
Fan relay control (A/C
condenser)
Alternator control
Air flow sensor filter reset
control
Fuel pressure control
Supercharging pressure
control
Secondary air controlIntercooler water spay control
Engine warning light control
O
2sensor heater control
Purge control
Diagnosis output
RAM data transmissionNo. 1 indicator
No. 2 indicator
No. 3 indicatorNo. 4 indicator
ISC servo (stepper motor)
Ignition coil A (No.1 – No.4)
Ignition coil B (No.2 – No.3)
Engine control relay
Fuel pump relay 2
Fuel pump relay 3
A/C relay
Fan controller (radiator fan)
Fan motor relay (HI, LOW)
(A/C condenser)
Alternator G terminal
Air flow sensor
Fuel pressure control valve
No. 1 wastegate solenoid valve
No. 2 wastegate solenoid valve
Secondary air control solenoid
valve
Intercooler water spray relay
Intercooler water spray lamp
Tachometer
Engine warning lights O
2sensor heater
Purge control solenoid valve
Diagnosis output terminal
Diagnosis output terminal (for
MUTII)

31DRIVE CONTROL – Front suspension, Rear suspension, Wheels, Tyres
SECTION 3
DRIVE CONTROL
CONTENTS
Front suspension....................................31
Rear suspension .....................................31Wheels and Tyres ...................................31
Front suspension
Roadholding has been improved by the adoption of Bilstein shock absorbers.
(GRS: Standard; RS: Optional)
Notes :
* Bilstein are one of the world’s leading manufacturers of shock absorbers, and their products are used in racing vehicles
worldwide.
Rear suspension
• Roadholding has been improved by the adoption of Bilstein shock absorbers.
(GRS: Standard; RS: Optional)
•The specifications of the coil springs have been changed. (GSR)
Specifications
ItemLancer Evolution VIII MR GSRLancer Evolution VIII GSR
Wire diameter mm12
Average diameter mm88
Free length mm277287
Wheels and Tyres
BBS lightweight forged alloy wheels are provided as an option,
which reduces the unsprung weight. Fitting these BBS lightweight
wheels allows the Bilstein shock absorbers to display their fullrange of performance.
Note:
See “Section 8 Main Equipment” for detailed specifications.

REFERENCE MATERIAL – MAIN EQUIPMENT87
4WD
RSGSR
Equipment
5M/T6M/T
Seat finishFabriclll
Standard typell
Recaro seatr*1r*1l
SlideAdjustment
mechanism
Reclining
lll
Front
Seat
Headrest
Low back bench seat (fixed)
ll
High back bench seat (fixed)
Rear
Seat
Centre arm rest (with cup
holder)
l
2 ¥ 3point with
ELR
With pretensioner
(driver’s seat &
front passenger
seat)
Front
Adjustable
seatbelt anchor
SRS
airbags
Rear2 ¥ 3point with
ELR / ALR + 1 ¥ 2
point belt
lll
Driver’s seatlllSRS
airbags
Front passenger’s seatrrl
Accessories box (1 DIN)ll
Parcel box (with lid)l
Parcel
boxes
Coin box
Glove box
lll
Standard typell
Large typeWith lidl
Shift boot ringl
Front seatlllAshtray
Rear seatl
Floor
console
Cup holder (front seat)lll
Centre panel (unique type)ll
2 DIN typel
HeadliningClothlll
Moulded type (soft)Front door
trim
Door pocket (driver’s
seat, front passenger’s
seat)
Interior
Rear doorMoulded type (soft)
lll
4WD
RSGSR
Equipment
5M/T6M/T
Boot interior trim
Boot interior
floor carpetNeedle punch
l
¥ 1 (front passenger’s seat)llRetractable
assistance
straps
¥ 3 (front passenger’s seat,
rear seats)l
Driver’s seatlll
Front passenger’s seatrrl
Ticket holder (driver’s seat)lll
Sun
visors
Vanity mirror (with lid)l
Internal
mirrorDay / night switchable
Interior
Foot rests
lll
44B20LlllBattery
55B24Lrrr
Halogen (low and
high beam)ll
Discharge (low
beam)
Halogen (high
beam)
Fog lamps
(halogen)
rrl
Position lightslll
Automatic lightsl
Headlight levellingrrl
Extension (black)rrl
Rear combination
lights
(clear type *2)lll
External
lightsHeadlight
assembly
(Clear
type *2)
Extension (black)rrl
High mount stop
lightRear shelf mounting
(bulb type)
Front cabin lights (with map light)
lll
Rear cabin lightslll
Interior
lights
Boot interior light
Combination meterSpecial type
Electric type analogue
speedometer
Twin type trip meter
Tachometer
Water temperature
Meter
gauge
Fuel
lll
Fog lightsrrl
High beam
Turn signal and hazard lights
Equip
ment
Indicator
lights
ACD
lll
Note : *1: 4point seatbelt asymmetric type seat*2: Turn signal lamps coloured amber

REFERENCE MA
TERIAL – MAIN EQUIPMENT, COLD CLIMATE SPECIFICATIONS88
4WD
RSGSR
Equipment
5/MT6/MT
ABSrll
SRS airbags
Fuel level
Parking brake
Charge
Brake fluid
Engine check
Warning
lights
Door not properly closed
Lighting monitor warningBuzzer
Ignition key reminder warning
lll
Fixed time
intermittentll
Variable
intermittent(speed
sensitive)l
Windscre
en wipers2 speed
Mist spray
Equip
ment
Windscreen washer (synchronized with
wiper, 4jet)
lll
4WD
RSGSR
Equipment
5/MT6/MT
Rear
windowwiper /
washerFixed time intermittent,
synchronized with (R) gearpositionl
AM/FM tuner radio + MD player
+ DVDMMCS (DVD navigation
Mitsubishi MultiCommunication
System)r
Roof aeriallll
Roof and window aerial (diversity
aerial)r
W/out audiolll
Audio
parts
6 speakers (2 DIN compatible)r*3
Digital clock
Immobiliser system
lll
Manual heater
Air conditioning kit
ll
Equip
ment
Air
conditioning
Fully automatic air
conditioningl
Notes:
*3: Brackets for an aerial and radio are installed as standard.
Cold Climate Specifications
4WD
RSGSR
Equipment
5M/T6M/T
Battery
Weather strip silicon coating
Rear seat heater duct
Cold Climate Specification label
rrr
Door mirrors with heating elementsr

11BODY CONSTRUCTION – GENERAL, BODY CONSTRUCTION SPECIAL FEATURES
SECTION 1
BODY CONSTRUCTION
CONTENTS
Summary .................................................11
Body construction ..................................11Roof..........................................................11
Doors........................................................12
Summary
• The roof and side door beams have been changed from steel to aluminium.
Body Construction Special Features
ROOF
Body is now lighter as a result of changing the roof panels to aluminium.
The body is also more rigid now as a result of additional support in pillar areas.
:shaded areas indicate parts that are the same as those used on current vehicle.
a
Roof panel
Rear pillar upper support
Centre pillar upper support
Front pillar upper support

12BODY CONSTRUCTION – BODY CONSTRUCTION SPECIAL FEATURES
DOORS
The body has been lightened as a result of using aluminium for the side door beams.
FRONT DOOR
Front door side door beam
Rear door side door beam
REAR DOOR
:shaded areas indicate parts that are the same as those used on current vehicle.a

35CHANGING WELDED PANELS – ALUMINIUM ALLOY PANELS
ALUMINIUM ALLOY PANELS
Repairing Aluminium Alloy Panels
Precautions when working on sheet metal
1. The main differences to working with sheet steel. (Assuming an ordinary body shop)
OperationAluminium alloy panelSheet steel
HammeringWood or plastic hammerSheet steel hammer
Washer weldingNot possiblePossible
Gas weldingWorkability is poor but possiblePossible
Spot weldingNot possiblePossible
MIG weldingPossible with welder using argon gas and equipment for
aluminium weldingPossible with CO2gas and normal welding
equipment
2. At low temperatures, if subjected to a major impact, strength will deteriorate and it will crack.
3. Coefficient of elasticity is high, so springback (force acting to make material regain original form) is high.
4. Rate of heat transmission is high, and this can cause local thermal expansion.
5. If overheated, it becomes brittle, and strength deteriorates. If heated further, it will melt without discolouration.
(Heat treatment temperature: approx. 250˚C)
MaterialWelding temperature
Aluminium475˚C~660˚C (varies depending on alloy composition)
Sheet steel1500˚C~2500˚C
6. Material is soft, so be careful when selecting polish to use.
Also, since polishing powder is light and easily airborne, wear dust mask and goggles.
7. If strong pressure is used when using a disk sander on the alloy, the friction could cause the aluminium alloy to peel off,
and cause clogging.
8. Disk sanders that become clogged will cause deep scratching on aluminium alloy panels, so replace promptly.
9.Do not use general tools or sanders for sanding sheet steel.
(steel fragments or dust will remain on the sander, causing electrocorrosion with other metal)
10.With MIG welding, shield the local area.Sparks, often difficult to see, can be generated and dispersed over a wide area.
Repairing unevenness
This is basically the same as for sheet steel.However, bear in mind
aluminium alloy characteristics when carrying out this work.
1.Repairing sheet metal
(1) Heat with a torch
Note
a. Heat to the point where heat can be felt on the rear side
of panel with hand wearing a glove.
b. Keep torch moving so as not to overheat one area.

37CHANGING WELDED PANELS – ALUMINIUM ALLOY PANELS
MIG welding procedure
1.Repairing sheet metal
These should be repaired by heating the damaged part gently,
and lightly hammering. The areas stretched by hammering out
should be cut away using an air saw.
Note
(1) Take care not to overstretch or damage the panel.
(2) The gaps at the joint areas should be as narrow as
possible.
2. Welding
This work should be done using equipment designed for
aluminium welding or equipment that can be used for bothaluminium and steel plate welding.
• Welding wire: 5356, 5556, 5183 (JIS classifications)
• Wire dia.: 0.8 or 1.0mm
(1) Remove any grease from welding areas using white spirit
or similar.
(2) Immediately prior to welding, remove any oxidation film
with a stainless steel wire brush (including the rear side), and
carry out the work immediately after cleaning.
Note
To minimize distortion and material melting and coming
away, weld a little at a time, rather than welding long
stretches.
3.Inspecting welded areas
After finishing off areas sanded with #100 disk sander, check
that there are no inadequately welded parts (red check).
Note
The panel surface should not be excessively sanded away.
4.Checking for distortions
Polish with #80 ~ #120 sandpaper, and check for distortion.
5. Removing distortions
Remove any distortions by pressing out using a levelling
hammer and a torch.
Note
(1) Heat to approx. 250˚C to do this work
(2) Take care when heating so that welding can be done
without heating causing any discolouration