Mitsubishi Evolution X. Manual — part 228
EMISSION CONTROL <MFI - T/C>
TSB Revision
ENGINE AND EMISSION CONTROL
17-81
CATALYTIC CONVERTER
REMOVAL AND INSTALLATION
M1173003901248
AC708312
75 ± 19 N·m
55 ± 14 ft-lb
1
2
3
5
6
N
N
4
AC
44 ± 5 N·m
33 ± 3 ft-lb
59 ± 10 N·m
44 ± 7 ft-lb
9.5 ± 3.5 N·m
84 ± 31 in-lb
Removal steps
<<
A
>>
>>
A
<<
1.
Heated oxygen sensor (Rear)
2.
Exhaust pipe gasket
3.
Exhaust pipe gasket
4.
Catalytic converter assembly
5.
Exhaust muffler hanger
6.
Exhaust muffler hanger protector
Required Special Tool:
• MB991953: Oxygen Sensor Wrench
REMOVAL SERVICE POINT
.
<<A>> HEATED OXYGEN SENSOR (REAR)
REMOVAL
AC301966
AG
MB991953
Heated oxygen
sensor
Use special tool MB991953 to remove the heated oxygen sen-
sor (rear).
Removal steps (Continued)
EMISSION CONTROL <MFI - T/C>
TSB Revision
ENGINE AND EMISSION CONTROL
17-82
INSTALLATION SERVICE POINT
.
>>A<< HEATED OXYGEN SENSOR (REAR)
INSTALLATION
AC301966
AG
MB991953
Heated oxygen
sensor
Tighten the heated oxygen sensor (rear) to the specified torque
by using special tool MB991953.
Tightening torque: 44
± 5 N⋅ m (33 ± 3 ft-lb)
14-1
GROUP 14
ENGINE COOLING
CONTENTS
GENERAL INFORMATION . . . . . . . .
SERVICE SPECIFICATIONS. . . . . . .
COOLANT . . . . . . . . . . . . . . . . . . . . .
SEALANT. . . . . . . . . . . . . . . . . . . . . .
ENGINE COOLING DIAGNOSIS . . . .
INTRODUCTION. . . . . . . . . . . . . . . . . . . . .
TROUBLESHOOTING STRATEGY . . . . . .
SYMPTOM CHART. . . . . . . . . . . . . . . . . . .
SYMPTOM PROCEDURES . . . . . . . . . . . .
SPECIAL TOOLS. . . . . . . . . . . . . . . .
ON-VEHICLE SERVICE. . . . . . . . . . .
ENGINE COOLANT LEAK CHECK . . . . . .
RADIATOR CAP OPENING PRESSURE
CHECK . . . . . . . . . . . . . . . . . . . . . . . . . . . .
ENGINE COOLANT CHANGE . . . . . . . . . .
WATER PUMP COOLANT LEAK CHECK .
ENGINE COOLANT CONCENTRATION
TEST . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
COOLING FAN RELAY CONTINUITY
CHECK . . . . . . . . . . . . . . . . . . . . . . . . . . . .
COOLING FAN MOTOR CHECK . . . . . . . .
THERMOSTAT . . . . . . . . . . . . . . . . . .
REMOVAL AND INSTALLATION . . . . . . . .
INSPECTION. . . . . . . . . . . . . . . . . . . . . . . .
WATER PUMP . . . . . . . . . . . . . . . . . .
REMOVAL AND INSTALLATION . . . . . . . .
WATER HOSE AND WATER PIPE . .
REMOVAL AND INSTALLATION . . . . . . . .
INSPECTION. . . . . . . . . . . . . . . . . . . . . . . .
RADIATOR . . . . . . . . . . . . . . . . . . . . .
REMOVAL AND INSTALLATION . . . . . . . .
GENERAL INFORMATION
TSB Revision
ENGINE COOLING
14-2
GENERAL INFORMATION
M1141000101255
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 impeller type
and is driven by the drive belt from the crankshaft.
The radiator is the corrugated fin, cross flow type.
CONSTRUCTION DIAGRAM
SERVICE SPECIFICATIONS
M1141000301204
AC705530
Condenser fan motor
Radiator assembly
Radiator upper hose
assembly
Radiator condenser
tank assembly
Radiator fan motor
Cooling fan shroud
Radiator lower pipe
AC
Radiator
lower
hose
Radiator lower hose
One-touch joint
One-touch
joint
Item
Standard value
Limit
Valve opening pressure of radiator cap kPa (psi)
93
− 123 (14 − 18)
Minimum 83 (12)
Thermostat
Valve opening temperature of thermostat
° C (° F)
76.5
± 1.5 (170 ± 3) −
Full-opening temperature of thermostat
° C (° F)
90 (194)
−
Valve lift mm (in)
8.5 (0.33) or more −
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