engine MITSUBISHI LANCER EVOLUTION VI 1999 Workshop Manual

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General . . . . . . . . . . . . . . . . . . . . . . . .
Engine . . . . . . . . . . . . . . . . . . . . . . . . .
Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . .
Clutch . . . . . . . . . . . . . . . . . . . . . . . . .
Manual Transmission . . . . . . . . . . .
Front Axle . . . . . . . . . . . . . . . . . . . . . .
Rear Axle . . . . . . . . . . . . . . . . . . . . . .
Front Suspension . . . . . . . . . . . . . . .
Service Brakes . . . . . . . . . . . . . . . . .
Steering . . . . . . . . . . . . . . . . . . . . . . . .
Body . . . . . . . . . . . . . . . . . . . . . . . . . . .
Exterior . . . . . . . . . . . . . . . . . . . . . . . .
Chassis Electrical . . . . . . . . . . . . . .
Electrical Wiring . . . . . . . . . . . . . . . .
WORKSHOP MANUAL
SUPPLEMENT
FOREWORD
This Workshop Manual contains procedures for
service mechanics, including removal, disassembly,
inspection, adjustment, reassembly and
installation. Use the following manuals in
combination with this manual as required.
TECHNICAL INFORMATION MANUAL
N9806CNCP9
N9806CNCP9-A
WORKSHOP MANUAL
S9806CNCP9
All information, illustrations and product
descriptions contained in this manual are current
as at the time of publication. We, however, reserve
the right to make changes at any time without prior
notice or obligation.
The EVOLUTION -VI is sold exclusively through
RALLIART Inc. Since the EVOLUTION-VI is a rally-
based model, it will not be warranted and will not be
homologated for general production. Therefore, any
service matters on the EVOLUTION-VI should be
inquired to RALLIART Inc. as usual.
EVOLUTION-VI

Mitsubishi Motors Corporation March 1999
Interior and Supplemental
Restraint System (SRS) . . . . . . . . .
.
Heater, Air Conditioner and
Ventilation . . . . . . . . . . . . . . . . . . . . .
.

GENERAL – How to Use This Manual00-3
HOW TO USE THIS MANUAL
SCOPE OF MAINTENANCE, REPAIR
AND SERVICING EXPLANATIONS
This manual provides explanations, etc. concerning
procedures for the inspection, maintenance, repair
and servicing of the subject model. Note, however,
that for engine and transmission-related component
parts, this manual covers only on-vehicle
inspections, adjustments, and the removal and
installation procedures for major components.
For detailed information concerning the inspection,
checking, adjustment, disassembly and reassembly
of the engine, transmission and major components
after they have been removed from the vehicle,
please refer to separate manuals covering the
engine and the transmission.
ON-VEHICLE SERVICE
“On-vehicle Service” is procedures for performing
inspections and adjustments of particularly
important locations with regard to the construction
and for maintenance and servicing, but other
inspection (for looseness, play, cracking, damage,
etc.) must also be performed.
INSPECTION
Under this title are presented inspection and
checking procedures to be performed by using
special tools and measuring instruments and by
feeling, but, for actual maintenance and servicing
procedures, visual inspections should always be
performed as well.
DEFINITION OF TERMS
STANDARD VALUE
Indicates the value used as the standard for judging
the quality of a part or assembly on inspection
or the value to which the part or assembly is
corrected and adjusted. It is given by tolerance.
LIMIT
Shows the standard for judging the quality of a
part or assembly on inspection and means the
maximum or minimum value within which the part
or assembly must be kept functionally or in strength.
It is a value established outside the range of
standard value.
REFERENCE VALUE
Indicates the adjustment value prior to starting the
work (presented in order to facilitate assembly and
adjustment procedures, and so they can be
completed in a shorter time).
CAUTION
Indicates the presentation of information particularly
vital to the worker during the performance of
maintenance and servicing procedures in order to
avoid the possibility of injury to the worker, or
damage to component parts, or a reduction of
component or vehicle function or performance, etc.
INDICATION OF TIGHTENING TORQUE
The tightening torque shown in this manual is a
basic value with a tolerance of ±10% except the
following cases when the upper and lower limits
of tightening torque are given.
(1) The tolerance of the basic value is within ±10%.
(2) Special bolts or the like are in use.
(3) Special tightening methods are used.

GENERAL – How to Use This Manual00-4
EXPLANATION OF MANUAL CONTENTS
Indicates procedures to be performed
before the work in that section is started,
and procedures to be performed after
the work in that section is finished.
Indicates (by symbols) where lubrica-
tion is necessary.
Maintenance and Servicing Procedures
The numbers provided within the diagram indi-
cate the sequence for maintenance and servic-
ing procedures.
Removal steps:
The part designation number corresponds
to the number in the illustration to indicate
removal steps.
Disassembly steps:
The part designation number corresponds
to the number in the illustration to indicate
disassembly steps.Installation steps:
Specified in case installation is impossible
in reverse order of removal steps. Omitted
if installation is possible in reverse order of
removal steps.
Reassembly steps:
Specified in case reassembly is impossible
in reverse order of disassembly steps.
Omitted if reassemby is possible in reverse
order of disassembly steps.
Classifications of Major Maintenance/Service Points
When there are major points relative to maintenance and servicing procedures
(such as essential maintenance and service points, maintenance and service stan-
dard values, information regarding the use of special tools, etc.), these are ar-
ranged together as major maintenance and service points and explained in detail.
A: Indicates that there are essential points for removal or disassembly.
A: Indicates that there are essential points for installation or reassembly.
Symbols for Lubrication, Sealants and Adhesives
Information concerning the locations for lubrica-
tion and for application of sealants and adhe-
sives is provided, by using symbols, in the dia-
gram of component parts or on the page follow-
ing the component parts page, and explained.: Grease
(multipurpose grease unless there is a
brand or type specified)
: Sealant or adhesive
: Brake fluid or automatic transmission fluid
: Engine oil, gear oil or air conditioner com-
pressor oil
: Adhesive tape or butyl rubber tape
Component Diagram
A diagram of the component parts is
provided near the front of each section
in order to give a reader a better under-
standing of the installed condition of
component parts.

GENERAL – How to Use Troubleshooting/Inspection Service Points00-8
WHEN USING THE WARNING LAMP
1. Use the special tool to earth No.1 terminal (diagnosis
control terminal) of the diagnosis connector.
2. To check ABS system, remove the valve relay.
NOTE
That is because the valve relay is off and the warning
lamp remains illuminated if there is a fault in the ABS
system.
3. Turn on the ignition switch.
4. Read out a diagnosis code by observing how the warning
lamp flashes.
Applicable systems
System nameWarning lamp name
MPIEngine warning lamp
AY CAYC warning lamp
ABSABS warning lamp
Indication of diagnosis code by warning lamp
When the diagnosis code No.24 is outputWhen no diagnosis code is output*
On
Off
1.5 secs.0.5 sec.0.5 sec.
Pause
time 3
secs.Tens
signalPlace
division
2 secs.Units
signal
On
Off
0.5 sec.
NOTE
*: Even if the ABS system is normal, removing the valve relay causes the diagnosis code No.52 to
be output.
WHEN USING THE VOLTMETER
Use the special tool to connect the diagnosis output terminals
and the earth terminal of the diagnosis connector to a voltmeter
and take a reading of the diagnosis codes from the movement
of the needle.
Voltmeter connection terminals
System namePositive connection
terminalNegative connec-
tion terminal
Full-auto air
conditioner114 or 5
Diagnosis connector
MB991529
Earth terminal
Full-auto air con-
ditioner terminal
MB991529

GENERAL – How to Use Troubleshooting/Inspection Service Points00-9
Diagnosis result display method when using a voltmeter
Example of diagnosis code voltage wave pattern for
diagnosis code No. 24Normal voltage wave pattern
12V
0 V
1.5 secs.0.5 sec.0.5 sec.
Pause
time 3
secs.Tens
signalPlace
division
2 secs.Units
signal
12 V
0 V
0.5 sec.
METHOD OF ERASING DIAGNOSIS CODES
WHEN USING THE MUT-II
Connect the MUT-II to the diagnosis connector and erase the diagnosis code.
Caution
Turn off the ignition switch before connecting or disconnecting the MUT-II.
WHEN NOT USING THE MUT-II
(1) Turn the ignition switch to OFF.
(2) After disconnecting the battery cable from the battery (–) terminal for 10 seconds or more, reconnect
the cable.
(3) After the engine has warmed up, run it at idle for about 15 minutes.
INPUT SIGNAL INSPECTION POINTS WITH ETACS-ECU>
WHEN USING THE MUT-II
1. Connect the MUT-II to the diagnosis connector.
Caution
The MUT-II should be connected or disconnected after
turning the ignition switch to the OFF position.
2. If buzzer of the MUT-II sounds once when the each switch
is operated (ON/OFF), the ETACS-ECU input signal for
that switch circuit system is normal.
WHEN USING VOLTMETER
1. Use the special tool to connect a voltmeter between
the earth terminal (No. 4 or 5) and the ETACS terminal
(No. 9) of the diagnosis connector.
2. If the voltmeter indicator deflects once when the each
switch is operated (ON/OFF), the ETACS-ECU input signal
for that switch circuit system is normal.
MUT-II
Earth terminal
ETACS terminal
MB991529

GENERAL – Models00-14
MODELS

Model
codeClass
codeModel
yearGradeEngine modelTransmission
modelFuel supply
system
E-CN9ASNDF’97RS4G63 (2,000-DOHC –
16 valves-intercooler
W5M51
(4WD-5M/T)
Electronically
controlledfuel
SRGF’97GSR
16 valves-intercooler
turbo)
(4WD-5M/T)controlled fuel
injection (MPI)
Applicable serial numbers
E-CN9A: CN9A – 0000001


Model
codeClass
codeModel
yearGradeEngine modelTransmission
modelFuel supply
system
GF-CP9ASNDF’98EVOLUTION-V RS4G63 (2,000-DOHC –
16 valves intercooler
W5M51
(4WD 5M/T)
MPI
SNGF’98EVOLUTION-V
GSR
16 valves-intercooler
turbo)(4WD-5M/T)
Applicable serial numbers
GF-CP9A: CP9A – 0000001


Model
codeClass
codeModel
yearGradeEngine modelTransmission
modelFuel supply
system
GF-CP9ASNDF’99EVOLUTION-VI
RS4G63 (2,000-DOHC –
16 valves-intercooler
turbo)
W5M51
(4WD-5M/T)MPI
SNGF’99EVOLUTION-VI
GSRturbo)
Applicable serial numbers
GF-CP9A: CP9A – 0100001

GENERAL – Precautions Before Service00-16
SERVICING THE ELECTRICAL SYSTEM
Before replacing a component related to the electrical system
and before undertaking any repair procedures involving the
electrical system, be sure to first disconnect the negative
(–) cable from the battery in order to avoid damage caused
by short-circuiting.
Caution
Before connecting or disconnecting the negative (–) cable,
be sure to turn off the ignition switch and the lighting
switch.
(If this is not done, there is the possibility of
semiconductor parts being damaged.)
APPLICATION OF ANTI-CORROSION AGENTS
AND UNDERCOATS
If oil or grease gets onto the oxygen sensor, it will cause
a drop in the performance of the sensor.
Cover the oxygen sensor with a protective cover when applying
anti-corrosion agents and undercoats.
PRE-INSPECTION CONDITION
“Pre-inspection condition” refers to the condition that the
vehicle must be in before proper engine inspection can be
carried out. If you see the words “Set the vehicle to the
pre-inspection condition.” in this manual, it means to set the
vehicle to the following condition.
Engine coolant temperature: 80–90C
Lamps, electric cooling fan and all accessories: OFF
M/T: Neutral
VEHICLE WASHING
If high-pressure car-washing equipment or steam car-washing
equipment is used to wash the vehicle, be sure to note the
following information in order to avoid damage to plastic
components, etc.
Spray nozzle distance: Approx. 40 cm or more
Spray pressure: 3,900 kPa or less
Spray temperature: 82C or less
Time of concentrated spray to one point: within 30 sec.
Approx.
40 cm

11-1
ENGINE
CONTENTS
GENERAL INFORMATION 2. . . . . . . . . . . . . . . .
SPECIFICATIONS 3. . . . . . . . . . . . . . . . . . . . . . . .
Service Specifications 3. . . . . . . . . . . . . . . . . . . . . .
Torque Specifications 5. . . . . . . . . . . . . . . . . . . . . .
New Tightening Method by Use of Bolts
to Be Tightened in Plastic Area 9. . . . . . . . . . . .
Sealants 9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Form-In-Place Gasket 10. . . . . . . . . . . . . . . . . . . .
SPECIAL TOOLS 11. . . . . . . . . . . . . . . . . . . . . . .
ALTERNATOR AND IGNITION SYSTEM 14.
TIMING BELT 15. . . . . . . . . . . . . . . . . . . . . . . . .
FUEL AND EMISSION CONTROL PARTS 27
SECONDARY AIR SYSTEM AND INTAKE
MANIFOLD 29. . . . . . . . . . . . . . . . . . . . . . . . . . . . EXHAUST MANIFOLD 31. . . . . . . . . . . . . . . . .
WATER PUMP AND WATER HOSE 34. . . . .
ROCKER ARMS AND CAMSHAFT 37. . . . . .
CYLINDER HEAD AND VALVES 43. . . . . . . .
FRONT CASE, COUNTERBALANCE
SHAFT AND OIL PAN 51. . . . . . . . . . . . . . . . .
PISTON AND CONNECTING ROD 59. . . . . .
CRANKSHAFT AND FLYWHEEL 67. . . . . . . .
THROTTLE BODY 73. . . . . . . . . . . . . . . . . . . . .
TURBOCHARGER 75. . . . . . . . . . . . . . . . . . . . .
ALTERNATOR 79. . . . . . . . . . . . . . . . . . . . . . . . .
STARTER MOTOR 83. . . . . . . . . . . . . . . . . . . . .

ENGINE – General Information11-2
GENERAL INFORMATION
DescriptionsSpecifications
TypeIn-line OHV, SOHC
Number of cylinders4
Combustion chamberPentroof + curved top piston type
Total displacement dm31,997
Cylinder bore mm85.0
Piston stroke mm88.0
Compression ratio8.8
Valve timingIntake valveOpens (BTDC)21°
Closes (ABDC)59°
Exhaust valveOpens (BBDC)58°
Closes (ATDC)18°
Lubrication systemPressure feed, full-flow filtration
Oil pump typeInvolute gear type

ENGINE – Specifications11-3
SPECIFICATIONS
SERVICE SPECIFICATIONS
ItemsStandard valueLimit
Timing belt
Auto-tensioner rod projection length mm12–
Auto-tensioner rod pushed-in amount [when pushed with a force of 98
– 196 N] mm1.0 or less–
Rocker arms and camshaft
Camshaft cam height mmIntake35.7935.29
Exhaust35.4934.99
Camshaft journal outer diameter mm26–
Cylinder head and valves
Cylinder head flatness of gasket surface mmLess than 0.050.2
Cylinder head grinding limit of gasket surface mm
Total resurfacing depth of both cylinder head and cylinder block–0.2
Cylinder head overall height mm131.9 – 132.1–
Cylinder head bolt shank length mm–Maximum 99.4
Valve thickness of valve head (margin) mmIntake1.00.5
Exhaust1.51.0
Overall valve length mmIntake109.5109.0
Exhaust109.7109.2
Valve thickness to valve guide clearance
mm
Intake0.02 – 0.050.10
mmExhaust0.05 – 0.090.15
Valve face angle45° – 45.5°–
Valve spring free length mm48.347.3
Valve spring load/installed height N/mm294/40.0–
Valve spring out-of-squareness1.5° or lessMaximum 4°
Valve seat contact width mm0.9 – 1.3–
Valve guide inner diameter mm6.6–
Valve guide projection from cylinder head upper surface mm20.5–
Valve stem projection mmIntake49.2049.70
Exhaust48.4048.90
Oversize rework dimensions of valve guide
hole mm
0.05 O.S.12.05 – 12.07–
hole mm0.25 O.S.12.25 – 11.27–
0.50 O.S.12.50 – 12.52–