1999 MITSUBISHI LANCER EVOLUTION VI oil temperature

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

ENGINE – Specifications11-4
ItemsLimit Standard value
Intake oversize rework dimensions of valve
guide hole mm
0.3 O.S.35.30 – 35.33–
guide hole mm0.6 O.S.35.60 – 35.63–
Exhaust oversize rework dimensions of
valve guide hole mm
0.3 O.S.33.30 – 33.33–
valve guide hole mm0.6 O.S.33.60 – 33.63–
Front case and oil pan
Oil pump side clearance mmDrive gear0.08 – 0.14–
Driven gear0.06 – 0.12–
Oil pressure at curb idle speed kPa [Oil temperature is 75 to 90°C]78 or more–
Piston and connecting rod
Piston outer diameter mm85.0–
Piston ring side clearance mmNo. 1 ring0.04 – 0.075–
No. 2 ring0.02 – 0.06–
Piston ring end gap mmNo. 1 ring0.25 – 0.350.8
No. 2 ring0.40 – 0.550.8
Oil ring0.10 – 0.401.0
Piston pin outer diameter mm21.0–
Piston pin press-in load N (Room temperature)7,350 – 17,200–
Crankshaft pin oil clearance mm0.02 – 0.050.1
Connecting rod big end side clearance mm0.10 – 0.250.4
Crankshaft and flywheel
Crankshaft end play mm0.05 – 0.250.40
Crankshaft journal outer diameter mm57.0–
Crankshaft pin outer diameter mm44.0–
Crankshaft journal oil clearance mm0.02 – 0.040.1
Bearing cap bolt shank length mm–Maximum 71.1
Piston to cylinder clearance mm0.02 – 0.04–
Cylinder block grinding limit of gasket surface mm
Total resurfacing depth of both cylinder head and cylinder block–0.2
Cylinder block overall height mm284–
Cylinder block inner diameter mm85.0–
Cylinder block cylinder mm0.01–
Turbocharger
Waste gate actuator operation check kPa100113.3

ENGINE – Specifications11-7
ItemsNm
OIl return pipe (Turbocharger side)9
Oil return pipe (Oil pan side – Head mark 7)9
Oil return pipe (Oil pan side – Head mark 10)13
Oil pipe11
Oil pipe eye bolt (Cylinder head side)16
Oil pipe eye bolt (Turbocharger side)30
Water pipe11
Water pipe eye bolt41
Exhaust manifold (M8)29
Exhaust manifold (M10)49
Exhaust manifold (Turbocharger side)59
Water pump and water hose
Water temperature sensor29
Water temperature gauge unit11
Water inlet fitting24
Water outlet fitting (M6)10
Water outlet fitting (M8)13
Thermostat housing24
Thermostat housing (Clamp)11
Water inlet pipe (Cylinder block)13
Water inlet pipe (Outlet fitting)10
Water pump14
Knock sensor22
Rocker arms and camshaft
Camshaft position sensor9
Camshaft position sensor cover10
Camshaft position sensing cylinder21
Camshaft position sensing support13
Camshaft bearing cap20
Oil delivery body11
Cylinder head and valves
Cylinder head bolt [Tighten to 78 Nm and then completely before tightening to final torque
specification]20
90° + 90°

ENGINE – Specifications11-9
NEW TIGHTENING METHOD – BY USE OF BOLTS TO BE TIGHTENED IN
PLASTIC AREA
A new type of bolts, to be tightened in plastic area, is currently used some parts of the engine. The
tightening method for the bolts is different from the conventional one. Be sure to observe the method
described in the text when tightening the bolts.
Service limits are provided for the bolts. Make sure that the service limits described in the text are strictly
observed.

Areas where the bolts are in use:
(1) Cylinder head bolts
(2) Main bearing cap bolts
(3) Connecting rod cap bolts

Tightening method
After tightening the bolts to the specified torque, tighten them another 90° or 180° (twice 90°). The
tightening method varies on different areas. Observe the tightening method described in the text.
SEALANTS
ItemSpecified sealantQuantity
Engine support bracket bolt3MTM AAD Part No. 8672 or equivalentAs required
Semi-circular packing3MTM AAD Part No. 8672 or equivalentAs required
Rocker cover3MTM AAD Part No. 8672 or equivalentAs required
Oil return pipe gasket3MTM AAD Part No. 8731 or equivalentAs required
Thermostat housingMitsubishi Genuine Part No. MD970389 or
equivalentAs required
Water outlet fittingMitsubishi Genuine Part No. MD970389 or
equivalentAs required
Engine coolant temperature gauge unit3MTM AAD Part No. 8672 or equivalentAs required
Engine coolant temperature sensor3MTM AAD Part No. 8731 or equivalentAs required
Cam position sensor supportMitsubishi Genuine Part No. MD970389 or
equivalentAs required
Oil pressure switch3MTM AAD Part No. 8672 or equivalentAs required
Oil panMitsubishi Genuine Part No. MD970389 or
equivalentAs required
Oil seal caseMitsubishi Genuine Part No. MD970389 or
equivalentAs required

ENGINE – Specifications11-10
FORM-IN-PLACE GASKET
The engine has several areas where the form-in-place gasket (FIPG) is in use. To ensure that the gasket
fully serves its purpose, it is necessary to observe some precautions when applying the gasket. Bead
size, continuity and location are of paramount importance. Too thin a bead could cause leaks. Too thick
a bead, on the other hand, could be squeezed out of location, causing blocking or narrowing of the
fluid feed line. To eliminate the possibility of leaks from a joint, therefore, it is absolutely necessary to
apply the gasket evenly without a break, while observing the correct bead size.
The FIPG used in the engine is a room temperature vulcanisation (RTV) type and is supplied in a 100-gram
tube (Part No. MD970389). Since the RTV hardens as it reacts with the moisture in the atmospheric
air, it is normally used in the metallic flange areas. The FIPG, Part No. MD970389, can be used for
sealing both engine oil and coolant, while Part No. MD997110 can only be used for engine oil sealing.
Disassembly
The parts assembled with the FIPG can be easily disassembled without use of a special method. In
some cases, however, the sealant between the joined surfaces may have to be broken by lightly striking
with a mallet or similar tool. A flat and thin gasket scraper may be lightly hammered in between the
joined surfaces. In this case, however, care must be taken to prevent damage to the joined surfaces.
For removal of the oil pan, the special tool “Oil Pan Remover” (MD998727) is available. Be sure to use
the special tool to remove the oil pan.
Surface Preparation
Thoroughly remove all substances deposited on the gasket application surfaces, using a gasket scraper
or wire brush. Check to ensure that the surfaces to which the FIPG is to be applied is flat. Make sure
that there are no oils, greases and foreign substances deposited on the application surfaces. Do not
forget to remove the old sealant remained in the bolt holes.
Form-in-Place Gasket Application
When assembling parts with the FIPG, you must observe some precautions, but the procedures is very
simple as in the case of a conventional precut gasket.
Applied FIPG bead should be of the specified size and without breaks. Also be sure to encircle the
bolt hole circumference with a completely continuous bead. The FIPG can be wiped away unless it is
hardened. While the FIPG is still moist (in less than 15 minutes), mount the parts in position. When
the parts are mounted, make sure that the gasket is applied to the required area only. In addition, do
not apply any oil or water to the sealing locations or start the engine until a sufficient amount of time
(about one hour) has passed after installation is completed.
The FIPG application procedure may vary on different areas. Observe the procedure described in the
text when applying the FIPG.

ENGINE – Water Pump and Water Hose11-36
INSTALLATION SERVICE POINTS
AWATER PIPE / O-RING INSTALLATION
Wet the O-ring (with water) to facilitate assembly.
Caution
Keep the O-ring free of oil or grease.
BTHERMOSTAT HOUSING INSTALLATION
Apply 3 mm diameter of form-in-place gasket (FIPG) to the
location shown in the illustration.
Specified sealant:
Mitsubishi Genuine Part No. MD970389 or equivalent
CWATER OUTLET FITTING INSTALLATION
Apply 3 mm diameter of form-in-place gasket (FIPG) to the
location shown in the illustration.
Specified sealant:
Mitsubishi Genuine Part No. MD970389 or equivalent
DSEALANT APPLICATION TO ENGINE COOLANT
TEMPERATURE GAUGE UNIT
(1) When reusing the gauge unit, clean its thread.
(2) Apply the specified sealant to the thread.
Specified sealant:
3M
TM AAD Part No. 8672 or equivalent
ESEALANT APPLICATION TO ENGINE COOLANT
TEMPERATURE SENSOR
(1) When reusing the sensor, clean its thread.
(2) Apply the specified sealant to the thread.
Specified sealant:
3M
TM AAD Part No. 8731 or equivalent
6EN0594
Water pipe
O-ring
9EN0092
9EN0091

ENGINE – Front Case, Counterbalance Shaft and Oil Pan11-58
COUNTERBALANCE SHAFT
(1) Check oil holes for clogging.
(2) Check journals for seizure, damage and contact with
bearing. If there is anything wrong with the journal, replace
the counterbalance shaft, bearing or front case assembly.
OIL COOLER BY-PASS VALVE (ENGINE WITH AIR
COOLING TYPE OIL COOLER)
(1) Make sure that the valve moves smoothly.
(2) Ensure that the dimension (L) measures the standard
valve under normal temperature and humidity.
Standard value (L): 34.5 mm
(3) The dimension must be the standard value when
measured after the valve has been dipped in 100°C oil.
Standard value (L): 40 mm or more
OIL PUMP
(1) Assemble the oil pump gear to the front case and rotate
it to ensure smooth rotation with no looseness.
(2) Ensure that there is no ridge wear on the contact surface
between the front case and the gear surface of the oil
pump cover.
(3) Check the side clearance.
Standard value:
Drive gear 0.08 – 0.14 mm
Driven gear 0.06 – 0.12 mm
Valve

MPI – General13-3
MPI System Diagram
1 Injector
2 ISC servo
3 Fuel pressure control valve
4 Waste gate solenoid valve
5 Secondary air control solenoid valve

Control relay

Fuel pump relay

A/C relay

Ignition coil

Exhaust temperature warning lamp

Engine warning lamp

Diagnosis output

Alternator G terminal

Fan motor relay

Tachometer

Fuel pump relay No.2 1 Oxygen sensor
2 Air flow sensor
3 Intake air temperature sensor
4 Throttle position sensor
5 Idle switch
6 Camshaft position sensor
7 Crank angle sensor
8 Barometric pressure sensor
9 High temperature sensor
10 Engine coolant temperature sensor
11 Detonation sensor

Power supply voltage

Ignition switch-IG

Ignition switch-ST

Vehicle speed sensor

A/C switch

Power steering fluid pressure switch

Alternator FR signalEngine ECU
1 Oxygen sensor
2 Air flow sensor3
Intake air tem-
perature sensor
4,
5
6 Camshaft position
sensor
7 Crank angle sensor 8 Barometric
pressure sensor
9 High temperature
sensor 10 Coolant temperature sensor
11 Detonation sensor1 Injector 2 ISC servo
3 Fuel pressure
control valve
4 Waste gate
solenoid valve 5 Secondary air
control solenoid
valveCanister
Check valveFrom
fuel
tank
Throttle position
sensor (with a
built-in
idle
switch)
Secondary
air valve
AirTo fuel
tankFuel
pressure
regulatorFrom
fuel
pump
Waste gate
actuator
Catalytic converter