Mitsubishi 380. Manual — part 238
THERMOSTAT
ENGINE COOLING
14-36
14. ENGINE COOLANT
TEMPERATURE SENSOR
CONNECTOR
15. CAPACITOR CONNECTOR
16. CAMSHAFT POSITION SENSOR
CONNECTOR
17. INHIBITOR SWITCH SENSOR
CONNECTOR
18. A/T CONTROL SOLENOID VALVE
ASSEMBLY CONNECTOR
19. OUTPUT SHAFT SPEED
SENSOR CONNECTOR
20. INPUT SHAFT SPEED SENSOR
CONNECTOR
REMOVAL STEPS (Continued)
AC306959AB
19 ± 1 N·m
14 ± 1 ft-lb
21
22
23
REMOVAL STEPS
<<A>>
>>B<<
21. RADIATOR LOWER HOSE
CONNECTION
22. WATER INLET FITTING
>>A<<
23. THERMOSTAT
REMOVAL STEPS (Continued)
THERMOSTAT
ENGINE COOLING
14-37
REMOVAL SERVICE POINT
.
<<A>> RADIATOR LOWER HOSE DISCONNEC-
TION
Make mating marks on the radiator hose and the hose clamp.
Disconnect the radiator hose.
INSTALLATION SERVICE POINTS
.
>>A<< THERMOSTAT INSTALLATION
CAUTION
Make absolutely sure that no oil adheres to the rubber ring
of the thermostat. Also do not fold or scratch the rubber
ring during installation.
Install the thermostat so that the jiggle valve is facing straight
up. Be careful not to fold or scratch the rubber ring.
.
>>B<< RADIATOR 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.
AC200641AB
MATING MARKS
AC000279
JIGGLE VALVE
RUBBER RING
AB
AC200642
MATING
MARKS
PROJECTION
WATER INLET
FITTING
AE
THERMOSTAT
ENGINE COOLING
14-38
INSPECTION
M1141002500450
.
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:
88
± 1.5°C (190 ± 3°F)
2. Check that the amount of valve lift is at the standard value
when the water is at the full-opening temperature.
NOTE: Measure the valve height when the thermostat is
fully closed, and use this measurement to compare the
valve height when the thermostat is fully open.
Standard value:
Full-opening temperature:
100
°C (212°F)
Amount of valve lift:
9.0 mm (0.35 inch) or more
ACX00400
ACX00401AB
VALVE LIFT
WATER PUMP
ENGINE COOLING
14-39
WATER PUMP
REMOVAL AND INSTALLATION
M1141002700498
INSTALLATION SERVICE POINT
.
>>A<< O-RING INSTALLATION
CAUTION
Do not let the O-ring get contaminated with grease or
engine oil.
Fit the O-ring into the groove of the water pipe ends, and apply
water or coolant to the circumference of the O-ring and the pipe
bores to insert the pipe assembly.
Pre-removal and Post-installation Operation
• Engine Coolant Draining and Refilling (Refer to 27).
• Timing Belt Removal and Installation (Refer to GROUP
11C, Timing Belt
• Crankshaft Position Sensor Removal and Installation
(Refer to GROUP 16, Crankshaft Position Sensor 35).
AC205662
24 ± 3 N·m
18 ± 2 ft-lb
42 ± 8 N·m
31 ± 6 ft-lb
24 ± 3 N·m
18 ± 2 ft-lb
1
2
3
4
N
N
AB
BOLT SPECIFICATIONS
THREAD DIAMETER × LENGTH mm(in)
10 × 38
(0.4 × 1.5)
8 × 25
(0.3 × 1.0)
8 × 25
(0.3 × 1.0)
8 × 20
(0.3 × 0.8)
REMOVAL STEPS
1.
WATER PUMP BRACKET
2.
WATER PUMP
3.
WATER PUMP GASKET
>>A<<
4.
O-RING
REMOVAL STEPS (Continued)
AC200644 AB
O-RING
WATER PIPE
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