1998 MITSUBISHI LANCER EVOLUTION IV radiator

ENGINE COOLING – Thermostat14-4
INSTALLATION SERVICE POINTS
ATHERMOSTAT INSTALLATION
(1) Install the thermostat so that the jiggle valve is facing
straight up.
Caution
Make absolutely sure that no oil is adhering to the
rubber ring of the thermostat. If the rubber ring is
damaged, replace the thermostat.
(2) When assembling the thermostat, be careful not to fold
over or scratch the rubber ring.
BRADIATOR LOWER HOSE CONNECTION
(1) Insert each hose as far as the projection of the water
inlet fitting.
(2) Align the mating marks on the radiator hose and hose
clamp, and then connect the radiator hose.
INSPECTION
THERMOSTAT CHECK
(1) Immerse the thermostat in water, and heat the water while
stirring. Check the thermostat valve opening temperature.
Standard value: 76.5 ± 1.5
C
(2) Check that the amount of valve lift is at the standard
value when the water is at the full-opening temperature.
Standard value:
Full-opening temperature: 90
C
Amount of valve lift: 8.5 mm or more
NOTE
Measure the valve height when the thermostat is fully
closed, calculate the valve lift by subtracting this
measurement from the valve height when the thermostat
is fully open.
Jiggle valve
Rubber ring
Valve lift

ENGINE COOLING – Water Hose and Water Pipe14-6
WATER HOSE AND WATER PIPE
REMOVAL AND INSTALLATION
Pre-removal and Post-installation Operation
(1) Coolant Draining and Refilling (Refer to P.14-2.)
(2) Air Hose C Removal and Installation
(Refer to GROUP 15 – INTERCOOLER.)
(3) Air Control Valve Bracket Removal and Installation
(Refer to GROUP 15 – AIR CONTROL VALVE.)
6 2
10
8
Semi-drying sealant:
THREEBOND 1207F
57

3mm
6
9 1 3
Unit: Nm {kgfm}
24 {2.4}
48 {4.9}
10 {1.0}
141112
13 {1.3}
41 {4.2} 13 {1.3} 10 {1.0}24 {2.4}
41 {4.2}
13
4
Removal steps
AC1. Radiator upper hose connection
AC2. Radiator lower hose connection
3. Water hose
4. Water hose
5. Water inlet fitting
B6. Thermostat case assembly
7. Water hose
8. Water hose9. Heater hose connection
A10. O-ring
11. Water inlet pipe
A12. O-ring
Turbocharger (Refer to GROUP 15.)
13. Water pipe assembly A
14. Water pipe assembly B

ENGINE COOLING – Radiator14-7
RADIATOR
REMOVAL AND INSTALLATION
Pre-removal and Post-installation Operation
Engine Coolant Draining and Supplying (Refer to
P.14-2.)
2
3 611
12 6
810
796
1513
4
Unit: Nm {kgfm}
12 {1.2} 12 {1.2}
12 {1.2}
9
Radiator removal steps
1. Drain plug
2. Radiator cap
3. Overflow hose
4. Reserve tank
5. Reserve tank bracket
AA6. Radiator upper hose
AA7. Radiator lower hose
8. Radiator assembly
9. Lower insulator
10. Radiator fan motor assemblyRadiator fan motor removal steps
1. Drain plug
2. Radiator cap
AA6. Radiator upper hose
Air intake hose
(Refer to GROUP15 – Intercooler.)
10. Radiator fan motor assembly
11. Fan
12. Radiator fan motor
13. Shroud

ENGINE COOLING – Radiator14-8
REMOVAL SERVICE POINTS
ARADIATOR UPPER HOSE / RADIATOR LOWER
HOSE DISCONNECTION
After making mating marks on the radiator hose and the hose
clamp, disconnect the radiator hose.
INSTALLATION SERVICE POINT
ARADIATOR LOWER HOSE / RADIATOR UPPER
HOSE CONNECTION
(1) Insert each hose as far as the projection of the water
inlet or outlet fitting.
(2) Align the mating marks on the radiator hose and hose
clamp, and then connect the radiator hose.
Caution
Fit the clamp on the hose at the same position as
before.
INSPECTION
1. RADIATOR FAN MOTOR CHECK
Apply the battery voltage across connector terminals 1 and
2, and terminals 3 and 4, of the radiator fan motor and check,
at that time, that the radiator fan turns.
2. POWER RELAY CONTINUITY CHECK
Battery voltageTerminal number
1345
When deenergized
When energized
Radiator fan motor relay LO

ENGINE COOLING – Radiator14-9
Battery voltageTerminal number
1234
When deenergized
When energized
Radiator fan motor relay HI

INTAKE AND EXHAUST – Exhaust Manifold and Turbocharger15-11
EXHAUST MANIFOLD AND TURBOCHARGER
REMOVAL AND INSTALLATION
Pre-removal and Post-installation Operation
(1) Radiator Removal and Installation
(Refer to GROUP 14.)
(2) Air Intake Hose and Air Hose A Removal and
Installation (Refer to P.15-7.)
(3) Front Exhaust Pipe Removal and Installation
(Refer to P.15-14.)(4) Air Pipe Assembly Removal and Installation
(Refer to P.15-8.)
(5) Engine Oil Removal and Refilling
1
Unit: Nm {kgf
m}
49 {5.0}54 – 64 {5.5 – 6.5}
9 {0.9} 12 – 15 {1.2 – 1.5}
23
4
29 {3.0}
20
49 – 59 {5.0 – 6.0}
54 – 64 {5.5 – 6.5}
30 {3.1} 17 – 20 {1.7 – 2.0}10 {1.0} 42 {4.2}10 {1.0} 10 – 12 {1.0 – 1.2} 17 {1.7} 49 {5.0}
27 – 32 {2.7 – 3.3}
19
6
10
12
10
11
18 7
8
9 171615 1413
5
Removal steps
1. Exhaust manifold heat protector
A2. Oxygen sensor
3. Turbocharger heat protector
4. Water pipe assembly A connection
5. Water hose connection
B6. Oil pipe
7. Starter
8. Oil return pipe
C9. Oil return pipe gasket
10. Vacuum hose connection11. Air outlet fitting
B12. Air outlet fitting gasket
13. Turbocharger gasket
14. Turbocharger assembly
A15. Turbocharger
16. Exhaust fitting gasket
17. Exhaust fitting
18. Water pipe hose assembly
19. Exhaust manifold
20. Exhaust manifold gasket

51-1
EXTERIOR
CONTENTS
SPECIAL TOOLS 2. . . . . . . . . . . . . . . . . . . . . . . .
FRONT BUMPER 2. . . . . .
FRONT BUMPER 4. . . . . . .
REAR BUMPER 6. . . . . . . .
AERO PARTS 7. . . . . . . . .
AERO PARTS 8. . . . . . . . . . REAR FENDER GARNISH
11. . . . . . . . . . . . . . . . . . . . . . .
WATER SPRAY 12. . . . . .
INTERCOOLER & RADIATOR WATER
SPRAY SYSTEM 13. . . . .
MARK 15. . . . . . . . . . . . . . .

EXTERIOR – Intercooler & Radiator Water Spray System 51-13
INTERCOOLER & RADIATOR WATER SPRAY SYSTEM

REMOVAL AND INSTALLATION
Pre-removal and Post-installation Operation

Front Bumper Removal and Installation
(Refer to P.51-4.)
12 3
4
567
89
Unit: Nm {kgf
m}
2.5 {0.25}
2.5 {0.25}
1 5
55
5 5
54
4
22
1
4
45
4 4
4 4
5
3
1
2
1. Clamp
2. Water spray nozzle
3. Water spray nozzle bracket
A4. Water spray hose
5. Joint
A6. ClipWater spray motor removal steps
7. Washer tank
8. Water spray hose
9. Water spray motor
NOTE
The conventional service procedures apply for the water
spray switch.