Mitsubishi Space Star. Manual — part 90
ENGINE COOLING – Thermostat <4G93-GDI>
14-3
THERMOSTAT <4G93-GDI>
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: 82
±
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: 95
C
Amount of valve lift: 8.5 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 – Thermostat <F9Q1>
14-4
THERMOSTAT <F9Q1>
REMOVAL AND INSTALLATION
Pre-removal and Post-installation Operation
Engine Coolant Draining and Supplying
Air Cleaner Removal and Installation
(Refer to GROUP 15.)
1
12
3
11
2
4
5
6
12
7
16
15
10
9
8
13
14
Removal steps
A
A
1. Radiator upper hose connection
2. Water inlet fitting
3. Plate
4. O-ring
5. Thermostat
6. Water hose connection
A
A
7. Radiator lower hose connection
8. Heater hoses connection
9. Thermostat housing
10. O-ring
11. Bleed screw
12. Clip
13. Engine coolant temperature sensor
14. O-ring
15. Plug
16. O-ring
REMOVAL SERVICE POINT
A
RADIATOR 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
A
RADIATOR LOWER HOSE/RADIATOR UPPER
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.
ENGINE COOLING – Water Pump <F9Q1>
14-5
WATER PUMP <F9Q1>
REMOVAL AND INSTALLATION
Pre-removal and Post-installation Operation
Engine Coolant Draining and Supplying
Timing Belt Removal and Installation
(Refer to GROUP 11A.)
Sealant:
Mitsubishi Genuine Part No.
MD970389 or equivalent
Water pump
Water pump
ENGINE COOLING – Water Hose and Water Pipe <4G93-GDI>
14-6
WATER HOSE AND WATER PIPE <4G93-GDI>
REMOVAL AND INSTALLATION
Pre-removal and Post-installation Operation
Under Cover Removal and Installation
Engine Coolant Draining and Supplying
Air Cleaner Removal and Installation
Engine Cover and Control Wiring Harness Removal
and Installation (Refer to GROUP 11A – Camshaft,
Camshaft Oil Seal.)
1
2
3
4
5
6
7
8
9
1 2 – 1 5 N m
1 2 – 1 5 N m
2 2 – 2 5 N m
Sealant:
Mitsubishi Genuine Part No.
MD970389 or equivalent
2
φ
3 m m
9
9
Removal steps
A
C
1. Radiator lower hose connection
B
2. Thermostat case assembly
A
3. O-ring
4. Water hose
5. Heater hose connection
6. Detonation sensor connector
7. Water inlet pipe
A
8. O-ring
9. Water hoses
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