Mitsubishi Lancer Evolution 7. Manual — part 217
ENGINE COOLING -
Thermostat
ENGINE COOLING -
Thermostat
14-11
THERMOSTAT
REMOVAL AND INSTALLATION
Pre-removal and Post-installation Operation
D
Engine Coolant Draining and Supplying (Refer to P.14-6.)
D
Air Duct Assembly Removal and Installation (Refer to GROUP 15 - Air Cleaner.)
D
Vacuum Pipe, Secondary Air Pipe Assembly Removal and Installation
(Refer to GROUP 15 - Secondary Air Supply System.)
1
2
3
10 ± 1 N·m
Removal steps
A
A" "BA 1. Radiator upper hose connection
2. Water outlet fitting
"
AA 3. Thermostat
REMOVAL SERVICE POINT
A
A" RADIATOR UPPER HOSE DISCONNECTION
After making mating marks on the radiator hose and the hose
clamp,disconnect the radiator hose.
ENGINE COOLING -
Thermostat
14-12
INSTALLATION SERVICE POINTS
"
AA THERMOSTAT INSTALLATION
Install the thermostat being careful not to fold over or scratch
the rubber ring.
Caution
Make absolutely sure that no oil is adhering to the rubber
ring of the thermostat. In addition, be careful not to fold
over or scratch the rubber ring when inserting. If the
rubber ring is damage, replace the thermostat.
"
BA RADIATOR UPPER HOSE CONNECTION
1. Insert each hose as far as the projection of the water
outlet 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:
Valve opening temperature: 80 ± 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: 93_C
Amount of valve lift: 9.5 mm or more
NOTE
Measure the valve height when the thermostat is fully
closed, and use this measurement to calculate the valve
height when the thermostat is fully open.
Valve lift
ENGINE COOLING -
Water Pump
14-13
WATER PUMP
Caution
If the vehicle is equipped with the Brembo disc brake, during maintenance, take care not to contact
the parts or tools to the caliper because the paint of caliper will be scratched.
REMOVAL AND INSTALLATION
Pre-remobal and Post-installation Operation
D
Engine Coolant Draining and Supplying (Refer to P.14-6.)
D
Timing Belt Removal and installation (Refer to GROUP 11A.)
1
Bolt specifications
2
8 × 22
2
23 ± 3 N·m
14 ± 1 N·m
Nominal diameter
×
Nominal length mm
8× 70
8 ×14
8 × 22
8× 25
3
4
22 ± 4 N·m
Removal steps
1. Alternator brace
2. Water pump
3. Water pump Gasket
"
AA 4. O-ring
INSTALLATION SERVICE POINT
"
AA O-RING INSTALLATION
Fit an O-ring into the O-ring groove located at the end of
the water inlet pipe and apply water to the O-ring or the
inside of the mounting surface of the water pump for insertion.
CAUTION
Do not let the O-ring get contaminated with grease, such
as engine oil.
Water pump
O-ring
Water inlet pipe
ENGINE COOLING -
Water Hose and Water Pipe
14-14
WATER HOSE AND WATER PIPE
REMOVAL AND INSTALLATION
Pre-remobal and Post-installation Operation
D
Engine Coolant Draining and Supplying (Refer to P.14-6.)
D
Air Cleaner Assembly Removal and Installation (Refer to GROUP 15 - Air Cleaner.)
D
Air Bypass Valve Assembly, Air Bypass Hose, Air Hose E and Air Pipe C, Air Hose D Removal and
Installation (Refer to GROUP 15 - Intercooler.)
D
Secondary Air Control Valve Bracket Removal and Installation
(Refer to GROUP 15 - Secondary Air Supply System.)
D
Battery, Battery Tray Removal and Installation
3
4
5
6
7
8
9
10
12
10 ± 1 N·m
42 ± 7 N·m
13 ± 2 N·m
11
1
2
23 ± 4 N·m
18
17
16
15
14
13
19
10 ± 1 N·m
42 ± 7 N·m
10 ± 1 N·m
Removal steps
A
A" "CA 1. Radiator upper hose connection
A
A" "CA 2. Radiator lower hose connection
3. Engine coolant temperature gauge
unit connector
4. Engine coolant temperature sensor
connector
5. Water hose
6. Water outlet fitting and thermostat
case assembly
7. Thermostat case gasket
"
AA 8. O-ring
9. Detonation sensor connection
10. Water hose
11. Water hose
12. Heater hose connection
13. Water hose
"
BA 14. Water inlet pipe
"
AA 15. O-ring
16. Turbocharger water
feed pipe
17. Gasket
D
Turbocharger assembly
(Refer to GROUP 15.)
18. Turbocharger water
return pipe
19. Gasket
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