Cooling - Water pump assembly6. Install water pump assembly.(a) Install new o-ring on water pump.
(b) Install water pump with 6 bolts.
Torque: bolt A: Bolt B: 7. Install alternator mounting components.Torque: 12mm bolt head: 14mm bolt head: 8. Refill engine coolant.
9. Check there is leakage with coolant.
70
Cooling - Temperature regulator componentsReplacement1. Remove engine right bottom shield.
2. Discharge engine coolant.
3. Remove drive belt.Slowly turn drive belt tensioner clockwise to loosen the belt;
then remove drive belt and put back the tensioner slowly to
completely loosen it.4. Remove alternator components.(a) Remove rubber cover and nuts.
(b) Uncouple alternator joint.
(c) Remove 2 bolts and alternator.5. Remove water inlet pipe.
6. Remove temperature regulator.
7. Install temperature regulator.(a) Install new gasket to temperature regulator.
(b) As shown in the diagram, install temperature regulator with
inching valve toward upward.8. Install water inlet pipe and joint.Torque: 9. Install alternator installation components.Torque: 12mm bolt head: m
14mm bolt head: 10. Refill engine coolant.
11. Check there is leakage with coolant.
71Temperature regulator components
Cooling - Radiator with electronic fan assemblyRadiator with electronic fan assemblyReplacement1. Discharge coolant (see Page 73).
2. Disassemble radiator water inlet hose [64000062].
3. Disassemble radiator water outlet hose [64000063].
4. Disassemble No.1 oil cooler inlet pipe (auto gear).
5. Disassemble No.1 oil cooler outlet pipe (auto gear).
6. Disassemble fixing clips of 2 wire harnesses from fan cover.
7. Remove mounting bracket assembly on radiator [64000058].
8. Remove radiator together with electronic fan assembly [64000057].
9. Remove electronic fan together with fan cover assembly [64000060].(a) Screw off fixed nuts connecting electronic fan together with fan cover assembly with radiator.
(b) Uncouple fan motor joint.
(c) Remove 2 bolts of fan.
(d) Remove fan motor at the same time.10. Replace and install as sequences opposite to the above.
11. Refill engine coolant (see Page 73).
12. Check there is leakage with coolant (see Page 66).
72
CoolantReplacement1. Discharge engine coolant.Warning: when the temperature of engine and radiator is high, do not remove radiator cap to
avoid being scalded, because coolant and steam will spurt under high pressure.
(a) Remove radiator cap.
(b) Open radiator drain valve and engine drain valve.Cooling - Coolant2. Refill engine coolant.(a) Lock 2 drain valves and pour coolant into radiator until it is full.
Hints:Press radiator water inlet hose and outlet hose with hands several times.If coolant level is too low, please refill coolant again.
(b) Screw down radiator cap.
(c) Pour coolant into expansion tank until the level is up to “FULL” mark line.
(d) Run engine with vehicle warning up until thermostat valve is opened.
Hint:During vehicle warning up, press radiator water inlet hose and outlet hose with hands
several times.
(e) Engine flames out until coolant temperature falls to “cold”. Then open radiator cap and check coolant
level.
(f) If coolant level is too low, please perform the above steps again.
(g) If coolant level is not too low, please adjust expansion tank coolant level.3. Check there is leakage with coolant.(a) Refill engine coolant to radiator, and install radiator cap tester.
(b) Pressurize radiator to 118kPa, and check there is leakage.73Engine drain valve
Radiator drain valve Radiator cap
Drain pipe
Air conditioner--Air conditioning system
Air conditioner
Air conditioning system
Note
1. Do not dispose Refrigerant in sealed space or near
flame.
2. Wear glasses to protect your eyes.
3. Do not let liquid Refrigerant contact with your eyes
or skin.
If liquid Refrigerant contacts with your eyes or skin:
(a) Wash the contacted part with much water.
Warning: do not knead your eyes or skin.
(b) Spread clean Vaseline on your skin.
(c) Go to doctor or hospital for special cure.
4. Forbid heating it or making it expose the flame.
5. Forbid dropping the Refrigerant tank or shake it
intensively.
6. Do not operate compressor when Refrigerant is lack.
If the Refrigerant in cooling system is lack, it will incur com-
pressor burned out for lacking lubrication. So it is necessary
to avoid.
7. Do not open the high pressure valve of filling instru-
ment package when compressor is working.
If opening the valve at this time, Refrigerant will flow back into
refrigerant tank to incur the tank will break. So only the low
pressure valve could be opened or closed.
8. Do not fill Refrigerant too much.
Too much refrigerant will make many problems such as lack
cooling degree, oil consumption, too hot engine and so on.
Inspection on automobile
1. Check the No.1 pressure switch.
(a) Control for electromagnetic clutch:
Check the function of pressure switch.
(1) Assembly filling instrument package.
(2) Connect the anode lead of OUM meter to No. 4 termi-
nal and connect cathode lead to No. 1 terminal.
(3) Liking that shown in figure. When refrigerant pressure
is changed, check the conduction between terminals.
wrong correct
Low-pressure
sideHigh-pressure
side
Not
conductionCon-
duction
Not
conduction
213
Air conditioner--Air conditioning system
If resistance does not accord with the regulation, it is necessary to change heat sensitive resistance.
If the function does not accord with the regulation, it is
necessary to change pressure switch.
(b) Control for cooling fan:
Check the function of pressure switch.
(1) Connect the anode lead of OUM meter to No. 2 termi-
nal and connect cathode lead to No. 3 terminal.
(2) Liking that shown in left figure. When refrigerant pres-
sure is changed, check the conduction between
terminals.
If the function does not accord with the regulation, it is
necessary to change pressure switch.
Inspection
11
111..
...No.1 thermal resistor
(a) Check the resistance between No.1 terminal and No.2 ter-
minal of No.1 heat sensitive resistance at different
temperatures, liking that shown in figure.
Conduc-
tion Not conduc-
tion
214
Resistance:
--
---22
22255
555--
---11
11155
555--
---55
55555
55511
11155
55522
22255
55533
33355
55544
44455
55555
55555
55566
66655
55577
77755
55588
88855
555
11
11155
555
11
11100
00088
88866
66644
44422
222
22
22200
000
Resistance
Temperature
(1) Refrigerant system with normal function.
Meter reading
Low pressure end:
0.15-0.25Mpa
High pressure end:
1.37-1.57Mpa
(2) Water in cooling system.
Air conditioner--Refrigerant
When cooling system is
working, the pressure in low
pressure end changes to
vacuum or normal periodically.Water vapor enters refrigerant
system, and freezes on the ex-
pansion valve, the system
stops cycle in short time, when
ice melts, it returns to normal
again.(1)Change the condenser.
(2)Remove water in pipeline
with method of taking out
vacuum repeatedly.
(3)Fill applicable new
refrigerant. zDryer locates at full humidity
state.
zWater vapor of refrigerant
freezes on the outlet orifice
of expansion valve to ob-
stacle freezing cycle.
Phenomenon Possible reason Diagnose Method
(3) Lack refrigerant
Situation: too cold periodically, then lose cooling degree.
zThe pressure of high and low
pressure end is low.
zThere is air bubble on
window.
zRefrigerant leaks.Some part of refrigerant system
leaks.(1)Check it with leakage
measurer, if necessary, re-
pair it.
(2)Fill refrigerant to applicable
quantity.
(3)If meter pressure reading is
0, after checking and repair-
ing leaking position, take out
vacuum.
zRefrigerant in system lacks.
zCooling degree is not
enough.
Phenomenon Possible reason Diagnose Method
State: lack refrigerant
216