THERMOSTAT
EAS26450
CHECKING THE THERMOSTAT
1. Check:
• Thermostat
Does not open at 80.5–83.5 °C (176.9–182.3
°F)
→
Replace.
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a. Suspend the thermostat “1” in a container “2”
filled with water.
b. Slowly heat the water “3”.
c. Place a thermometer “4” in the water.
d. While stirring the water, observe the thermo-
stat and thermometer’s indicated tempera-
ture.
TIP
If the accuracy of the thermostat is in doubt, re-
place it. A faulty thermostat could cause serious
overheating or overcooling.
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2. Check:
• Thermostat cover
Cracks/damage
→
Replace.
3. Check:
• Radiator inlet hose
Cracks/damage
→
Replace.
EAS26480
INSTALLING THE THERMOSTAT
1. Install:
• Thermostat
TIP
Install the thermostat with its breather hole “a”
facing up.
2. Install:
• Copper washer
• Coolant temperature sensor
NOTICE
ECA22B1012
Use extreme care when handling the coolant
temperature sensor. Replace any part that
was dropped or subjected to a strong im-
pact.
3.
Fill:
4.
Cooling system
(with the specified amount of the recom-
mended coolant)
4. Check:
• Cooling system
Leaks
→
Repair or replace all faulty parts.
5.
Measure:
6.
Radiator cap opening pressure
Below the specified pressure
→
Replace the
radiator cap.
A. Fully closed
B. Fully open
4
3
1
2
82±1.5 ˚C
(179.6±2.7 ˚F)
95 ˚C
(203 ˚F)
T
R
.
.
Coolant temperature sensor
18 Nm (1.8 m
·
kgf, 13 ft
·
lbf)
New