cooling GEELY CK 2008 Workshop Manual

Chapter 6 Cooling System Inspection
(MR7131A, MR7151A, MR7161A).................................................................52Section 1 System Check
Section 2 Water Pump, Thermostat and Radiator Replacement.................................... 54Chapter 7 Clutch (MR7131A, MR7151A, MR7161A)....................................56Section 1 Clutch Replacement...................................................................................57Chapter 8 Maunal Transaxle Assembly
(MR7131A, MR7151A, MR7161A)................................................................59Section 1 Manual Transaxle Replacement..................................................................60
Section 2 Vehicle Speed Sensor Replacement
Section 3 Transmission Case Oil Seal..........................................................................62
Section 4 Transaxle Case Oil Seal Replacement........................................................63Chapter 9 General Engine Troubles and Their Troubleshooting....................64Section 1 Overview........................................................................................................64
Section 2 General Engine Fault and Troubleshooting.......................................................64
Section 3 Engine Noise Diagnosis and Troubleshooting................................................77Chapter 10 Engine Management Unit..............................................................81Section 1 System Description.........................................................................................81
Section 2 System Component and Working Principle......................................................82Part II Chassis............................................................................85Chapter 1 Transmission Control Device.........................................................85Section 1 Transmission Control Device.........................................................................85
Section 2 Lever Type Transmission Control Device......................................................85
Section 3 Cable Type Transmission Control Module......................................................87Chapter 2 Accelerator Pedal............................................................................90Section 1 Accelerator Pedal..........................................................................................90Chapter 3 Clutch Control System....................................................................91Section 1 Clutch Control System....................................................................................91
Section 2 Clutch Cable Control Mechanism.....................................................................91
Section 3 Clutch hydraulic Control Device.......................................................................94Chapter 4 Propeller Shaft...............................................................................97...............................................................................................52
..............................................................61

2c) When fault diagnosis tester is not used
(1) Shorting fault diagnosis interface socket 13 (TC) terminal and 4(CG) terminal.
Notice:
zEnsure correct connection, otherwise the engine will be damaged.
zSwitch off all electrical appliance system.
zCheck when disconnecting cooling fan motor.
(2) Using timing light to check ignition timing.
Ignition timing: 10 ± 2° BTDC at idle
Notice:
(1) Transmission shift lever should be in neutral position when checking ignition timing.
(2) Running engine at 1,000-1,300rpm for 5s and check at idle.
(3) Remove the tester on fault diagnosis socket.
(4) Ignition timing advance angle becomes larger when the engine roate speed is higher.
(5) Remove timing light.
8. Check engine idle See (Figure 3)
Notice:
zCheck idle when cooling fan motor is disconnected.
zSwitch off all electrical accessories and A/C.
9. Check compression pressure See (Figure 4)
(a) Engine switched off.
(b) Detach high voltage cable.
(c) Detach spark plug.
(d) Check the compression pressure in the cylinder.
(1) Insert pressure gauge into the hole of the spark plug.
(2) Throttle valve full open.
(3) Crank the engine, measure the compression pressure. MR479Q 800±50 (rpm)
MR479Q A 800±50 (rpm)
MR481Q A 800±50 (rpm)Table 2(a) Warm up the engine.
(b) Connect fault diagnosis tester to fault diagnosis interface socket.
(c) Connect tachometer testing pen to fault diagnosis socket terminal
9 when not using fault tester.
(d) Check idle See (Table 2).
Figure 4Figure 3Techometer
Battery

52Chapter 6 Cooling System Inspection
(MR7131A, MR7151A, MR7161A)Section 1 System Check1. Check the cooling system for leakage. See (Figure 118)
(a) Fill coolant into radiator. Install the tester onto the radiator cap port.
(b) Start engine.
(c) The water pump pressure is 118Kpa. Check the pressure and ensure the
pressure will not drop. If the pressure drops, check the port, radiator and
water pump for leakage. If there is no leakage, check the heat exchanger,
cylinder block and cylinder head.
2. Check the engine coolant level in the reservoir.
The coolant level should be between low and full marks.
3. Check coolant quality
(a) Remove radiator cap.
To avoid being scalded, do not remove radiator cap while the engine and
radiator are still hot, as fluid and steam can be sprayed under pressure.
(b) There should not be excessive deposits of rust or scale around the radiator,
and the coolant should be free from oil.
(c) Reinstall the radiator cap.
4. Thermostat
Hint:
The thermostat temp indicates the valve opening temperature.
See (Figure 119).
(a) Immerse the thermostat in water and gradually heat the water.
(b) Check the valve opening temperature. Valve opening temperature: 80 -- 84°C
(c) Check the valve lift. See (Figure 120, Figure 121). Valve lift: 8mm or mor at
95°C
(d) Check the thermostat is fully closed when the thermostat is at low temperature
( 77°C).
5. Radiator cap valve
Standard opening pressure: 93-123kpa
Minimum opening pressure: 78kpa
If the opening pressure is less thanminimum, replace the radiator cap.Figure 118
Figure 119
Figure 120
Figure 121 Radiator Cap Tester8.0mm or
More ≤

536. Fan
(1) Check the cooling fan operation with low temperature (Lower than
83°C)
(a) Turn the ignition switch to “ON” position.
(b) Check that the cooling fan stops.
(c) Pull out the water temperature sensor connector. See (Figure
122)
(d) Connect the water temperature sensor to car body with the
wire and ground the wire.
(e) Check the cooling fan operation.
(f) Insert water temperature sensor connector.> 93°C
See (Figure 123)
(a) Start engine and make the coolant temp. higher than 93°C.
(b) Check that the cooling fan turns.
Replace it with water temperature switch if it doesn't run)
(3) Check the cooling fan. See (Figure 124)
(a) Disconnect the cooling fan connector.
(b) Connect the battery and ammeter to the connector.
(c) Check that the cooling fan rotates smoothly and check
the reading on the ammeter.
Standard amperage: 5.7 - 7.7A
(d) Reconnect the cooling fan connector.Disconnest
Figure 123
Figure 124 Figure 122
(2) Check the cooling fan operation with high temperature (over 93°C)Battery Amperometer

55(5) Disconnect auto-transmission oil cooler input pipe (Auto-transmission).
(6) Disconnect auto-transmission oil cooler output pipe (Auto-transmission).
(7) Remove 4 bolts from the radiator mounting bracket. See (Figure 129).
(8) Detach radiator assembly, Remove 3 bolts. Detach the fan and fan shroud. See (Figure 130).
Figure 127 Figure 128
(9) Install the cooling fan assembly
(a) Fix the reservoir assembly on the cooling fan bracket with the bolt. Torque: 16 N. m.
(b) Install the fan and fan shroud with 3 bolts. Torque: 7.5N. m.
(c) Install the cooling fan assembly to radiator assembly with 3 bolts. Torque: 16N. m.
(d) Connect the overflow pipe on the reservoir assembly and radiator assembly. Fix it with the spring
band.
(f) The installation of the radiator assembly is in the reverse order of the removal.

7510. Engine overheat (Table 6)
Table 6Ite m Symptom Trouble shootingRepair or replace
Bad radiator hose Replace
Bad radiator tube strapSupplement welding, otherwise
replace it
Bad cylinder gasket Replace
Cracky cylinder blockRemedy with infiltration technology
or replace it
Poor water pump seal Replace the seal
Replace the anti-freeze liquid
Replace the thermostatBroken we ldSupplement weldingCorrosion result in pin holeFill the pinhole with clear coat,
otherwise replace it
Repair and dredge
Improve the ventilation
Repair or replace the water pump
Troubleshooting, replace the motor if
it is d a ma ge d
Replace
Repair and dredge
Repair or replace the oil pan if there
is o il le a k a ge , r e fill t he o il if it is no t
s up p le me nt e d in t imeCause
Ba d ra diator c over
Clogge d cooling tubePoor ventilationWater
le a ka ge
Anti-fre eze liquid not repla ce d
Bad thermostat
Radiator is
faultyWater
le a ka ge Insufficient
coolantF a ulty fa n vo lta ge
Disabled radiator temperature control
switch
Water jacket is clogged because of too much scale
I ns uffic ie nt e ngine o il ( o il le a k a ge o r d e la ye d filling)P oor
c ooling
Poor FanFaulty water pump

297Part IV Air Conditioner and Inside &
Outside TrimChapter 1 A/C SystemA/C system consists of refrigerating and heating system. The Refrigeration system mainly comprises
compressor, condenser and evaporator. The refrigerant circulation absorbs the heat in the air and discharge
the vapour to lower the temperature in and dehumidify the compartment. The heating system is mainly
composed of heat exchanger and heater. It heats the compartment throught the heat exchanger by heating
the air with the heat from the cooling water in the engine. The control of air temperature, humidity and
velocity of flow in the compartment is realized by independent or joint working of heating and Refrigeration
system.Section 1 The Structure & Working Principle of Refrigeration SystemThe structure of Refrigeration system is shown in Figure 1.
Figure 1 The Structure and Working Principle of Refrigeration System
1. Compressor 2. Condenser 3.Receiver/Drier
4.Pressure Relief Valve 5.Expansion Valve 6.Evaporator 7.Blower
Refrigeration system uses vapor compressing refrigeration cycle, comprising the compressor, condenser,
pressure relief valve, evaporator, blower , expansion valve, receiver/drier and pipe.
It's working principle is as shown in the Figure 1. The compressor (1) sucks in the refrigerant gas in the

3063. Check for leakage if the reading changes and vacuumize it again.
4. Refill the new HFC-134a refrigerant if the reading doesn’t change.
Fill the new HFC-134a refrigerant
1. Connect the intermediate pipe to the refrigerant steel jar.
2. Open the refrigerant steel jar valve.
3. Weigh the refrigerant steel jar to charge the right refrigerant volume (refrigerant refill 630g¡À20g).Warning:•Check for air leakage or any other leakage when refilling large amount of refrigerant into the
Refrigeration system. The operator is recommended to fill small amount of refrigerant first to
prevent the refrigerant from leakage, which will result in ozonosphere damage.•It is very dangerous to open the engine high pressure side valve if filling the refrigerant with
the service tank. The pressure in the service tank will rise during the operation, which will
result in the service tank explosion. The exploded mental fragment and the splashed refrigerant
will hurt the operator badly. Therefore, do close the high pressure side valve when the engine
is working.4. Open the manifold gauge low pressure side valve.
5. Close the manifold gauge low pressure side valve when the manifold gauge low pressure side reading is
increased to 0.098Mpa{1.0kgf/cm2}.
6. Check cooling pipeline/hose for leakage with leak detector.
•Proceed to step 8 if there is no leakage.
•Tighten the union joint if there is leakage at the loosened union joint and go to next step.
7. Re-check the leaked points.
•Go to next step if there is no leakage after tightening the union joint.
•If there is still leakage at the same union joint, drain refrigerant and repair the union joint. Repeat
the filling procedure and vacuum it.
8. Open the valve at the low pressure side of the manifold gauge. Fill the refrigerant until the refrigerant
tank weight from the one mentioned in Step 3 drop to 250g.
9. Close the valve at the low pressure side of the manifold gauge.
10. Start the engine and switch on A/C.
11. Open the valve at the low pressure side of the manifold gauge. Fill the refrigerant until the refrigerant
tank weight from the one mentioned in Step 3 to specified value.
12. Close the valve at the low pressure side of the manifold gauge and the valve of the refrigerant steel jar.
13. Stop the engine and A/C compressor.

307Check For Leakage:
1. Using leak detector, check refrigerant steel jar for leakage.
•Go to Step 3 if there is no leakage.
•Tighten the union joint if there is leakage at the loosened union joint and go to next step.
2. Re-check the leaked points.
•Go to next step if there is no leakage after tightening the union joint.
•If there is still leakage at the same union joint, drain refrigerant and vacuum the union joint.
3. Disconnect the high and low pressure pipe at the refill valve.
4. Install the filling valve cap.
Check Refrigerant Pressure:
1. Install the manifold gauge.
2. Warm up the engine and run it with constant 1800rpm.
3. Set the rpm of the cooling fan to the HIGHEST.
4. Turn on the A/C switch.
5. Set to internal circulation mode.
6. Set the temperature control mode to the COLDEST.
7. Set to be ventilation mode.
8. Close all door and windows.
9. Measure the environment temperature and the reading of the high pressure side and low pressure side
from the manifold gauge.
•Shoot the Refrigeration system trouble as required if it is not as specified in the technical specification.
The Performance Inspection of the Refrigeration System:
1. Check refrigerant pressure.
•Go to next step if the pressure value is correct.
•Shoot the Refrigeration system trouble promptly if the pressure value is not as specified in the
technical specification.
2. Insert a thermometer into the middle vent port at the driver's side.
3. Warm up the engine and run it at the constant 1800rpm.
4. Set the rpm of the cooling fan to the HIGHEST.
5. Switch on A/C.
6. Set to internal circulation mode.
7. Set the temperature control mode to the COLDEST.
8. Set to Ventilation Mode.
9. Close all doors and windows.
10. Wait until A/C output temperature is constant. (When the environment temperature is 38°C, the temperature
at the middle ventilation port at the drivers side is 10°C~16°C. )

3104. A/C Compressor Removal / Installation1. Disconnect the negative (--) terminal cable from the battery.
2. Drain the refrigerant from the system.
3. Detach the radiator.
4. Loose the drive belt and then remove the drive belt.Notice:•If anything moisture or any foreign matter enters into the Refrigeration system for circulation,
the cooling performance of the Refrigeration system will obviously deteriorate with abnormal
noise. Plug the port immediately after removing any cooling circulation component to prevent
anything moistur or any foreign matter from entering the circulation.5. Remove the compressor inlet and outlet pipe.
6. Removemagnetic clutch connector.
7. Remove the compressor.
8. The installation is in the reverse order of the removal.
9. Adjust the drive belt.
10. Check the Refrigeration system performance.5. The Condenser Removal / Installation1. Disconnect the negative (--) terminal cable from the battery.
2. Drain the refrigerant from the system.Notice:•If anything moisture or any foreign matter enters into the Refrigeration system for circulation,
the cooling performance of the Refrigeration system will obviously deteriorate with abnormal
noise. Plug the port immediately after removing any cooling circulation component to prevent
anything moistur or any foreign matter from entering the circulation.3. Remove the condenser inlet and outlet pipeline to prevent the compressor oil from splashing.
4. Remove condenser fan connector.
5. Remove the engine hood lock.
6. Remove the engine hood lock support brace.
7. Remove the condenser.
8. The installation is in the reverse order of the removal.
9. Check the Refrigeration system performance.The Condenser Installation Description:1. When installing the new condenser, it is recommended to fill certain SW-100 compressor oil into the
refrigerant circuit.Refill: (approximate)
20ml{20 cc }