Page 280 of 416
Section 6 Multi-wedge belt (Connecting Compressor and
Crankshaft Pulley)Replacement1. Remove multi-wedge belt
(1) Loosen nut A.
(2) Loosen bolt B, remove multi-wedge belt (A/C compressor to
crankshaft pulley)
2. Install multi-wedge belt
as shown in the illustration, temporarily install the multi-wedge
belt.
3. Adjust multi-wedge belt
(1) Tighten nut A
Torque: 25 N.m
(2) Adjust the belt tension by turning bolt B.
Belt Distortion:
New belt: 6.5 - 7.0mm
Old belt: 8.0- 9.0mm
Tip:
New belt means the belt used on the engine for less than 5
minutes.
Old belt means the belt used on the engine for more than 5
minutes.
Install the drive belt,check whether the belt fit the belt slot.
Use hand to confirm that the belt does not slide in the belt slot.
4. Tighten multi-wedge belt
Tighten bolt A
Torque: 39 N.m5-93nut Abolt B
nut Ablot B
Measuring
pointCorrectWrongAir Conditioning System -
Multi-wedge belt (Connecting Compressor and Crankshaft Pulley)
Page 281 of 416
Section 7 Compressor AssemblyComponent ViewReplacement1. System drains coolant (refer to Coolant for details)
2. Remove multi-wedge belt (refer to Multi-wedge Belt (A/C Compressor to Crankshaft Pulley for details)).Multi-Wedge Belt 4PK820Tensioner Assembly
Compressor Support
Hexagonal Bolt Spring and
Plate Washer Set (3 Pcs)Hexagonal Bolt
Spring and Plate
Washer Set
Compressor
Assembly
Hexagonal Bolt M8 x105Air Conditioning System -Compressor Assembly5-943. Disconnect the suction vent
(1) Remove the bolt, disconnect the suction vent.
(2) Remove the O-ring from the suction vent.
4. Disconnect the exhaust vent
(1) Remove the bolt, disconnect the exhaust vent.
(2) Remove the O-ring from the exhaust vent.
Notice:
Use vinyl tape seal all the interfaces of the disconnected
parts to avoid entry of water and foreign objects.
O ring is a non-reusable part.Suction port Discharge
port
Page 282 of 416
5. Remove the compressor and magnetic clutch
(1) Discomect the connetor.
(2) Loosen 4 bolts and remove the compressor.
6. Remove the bracket for compressor
(1) Remove 4 bolts and detach the bracket for compressor.
7. Installation is the reverse order of removal.Air Conditioning System -Compressor Assembly5-95
Page 283 of 416
Section 8 Condenser Fan Motor and Condenser AssemblyOn-board Inspection1. check condenser assembly
(1) if the radiator in the condenser is dirty, wash it with clean water and dry it with compressed air.
(2) if the radiator in the condenser is distorted, use the proper tool to correct it.
2. check the condenser for coolant leakage.
(1) use the leakage tester to check the connection area of the pipeline for leakage.
(2) If there is leakage, check the connector set bolt for tightening condition.Component Viewcondenser fan upper cushion
condenser fan
motor assembly
condenser as-
sembly
condenser lower
cushion condenser fan lower
cushioncondenser upper cushionAir Conditioning System -Condenser Fan Motor and Condenser Assembly5-96
Page 284 of 416
Overhaul1. Drain coolant (refer to Coolant for details).
2. Remove condenser fan motor assembly
(1) Disconnect condenser fan motor wire harness connector.
(2) Unscrew 1 bolt, remove condenser fan motor assembly.
3. Disconnect the liquid tube
(1) Remove the bolt, disconnect the liquid tube from the condenser.
(2) Remove the Oring from the liquid tube.
4. Disconnect the high and low pressure pipe assembly
(1) Remove the bolt, disconnect the high and low pressure tube
assembly from the condenser.
(2) Remove the Oring from the high and low pressure tube
assembly.
Notice: Use vinyl tape seal all the interfaces of the disconnected
parts to avoid entry of water and foreign objects.
5. Remove engine hood lock assembly
(1) remove the bolt, remove engine hood lock assemblyAir Conditioning System -Condenser Fan Motor and Condenser Assembly5-97
Page 285 of 416
Air Conditioning System -Condenser Fan Motor and Condenser Assembly5-986. Remove the centor backet for the radiator.
7. Remove the condenser body.
8. Change new O sealing ring and Installation is the reverse
order of removal.
Page 307 of 416

Fault symptom
Flameout, poor idle speedChapter 9 Engine EFI SystemI. Outline This system includes sensor that detects engine functioning. Engine ECU utilizes sensors installed at differ-
ent parts of engine to measure various working parameters of engine, accurately control oil injection quantity
according to control procedure set in engine electronic control unit, so engine could work in optimum mode
under various operating conditions, i. e. optimal power output, the most economical oil consumption, optimal
exhaust emissions. Engine ECU is capable of start up control, idle speed closed-loop control, air fuel ratio
closed-loop control, canister control, transient operation control, angle of ignition control, knocking control, air
conditioning control, coasting fuel cutoff and overspeed fuel cutoff control, ternary catalyst heating and protec-
tion control, system self-diagnosis etc.II. Inspection of control element1. Manifold intake pressure temperature sensor
(1) The part to measure intake pressure is piezo type sensor, could provide controller with "load signal "
according to the difference between atmospheric pressure and manifold pressure; controller will supply 5V
voltage, and feed back 0-5V voltage to controller according to different intake pressures. The part to measure
intake temperature is NTC type (negative temperature coefficient) sensor, resistance changes with intake
temperature, this sensor conveys a voltage representing intake temperature change to the controller.
(2) Simple measuring method:
Temperature sensor part: (remove joint) turn digital multimeter
to Ohm position, two meter pens connect sensor 1 #, 2 # pinrespectively, rated resistance is 2. 5k ohm±5% at 20°C, correspond-ing resistance value may be measured from the above characteristic
curve. Simulation method may also be used for measurement, spe-
cific procedure is to use electric drier to blast sensor (pay attention not
to be too close), observe change of sensor resistance, here resistanceEngine EFI System-Engine EFI System5-120Possible cause
There is abnormal high voltage or reverse heavy current during useVacuum
unit is damaged during repair
Repair precautions: it is prohibit to use high pressure gas to impact vacuum unit during repair; when replace
sensor case of trouble, check whether generator output voltage and current is normal or not.1 2 3 4Manifold intake pressure temperature
sensor Intake pressure sensor feature cureIntake temperature feature curve
Output voltageAbsolute pressureTemperatureResistance