water pump GREAT WALL FLORID 2008 Service Manual

Downloaded from www.Manualslib.com manuals search engine 13Overall Parameters
Chassis' Main Assembly Technical Parameters
ItemSpecifications
Model numberGW413EFGW4G15YC4W75-31
ClutchClutch type
Single chip, dry type, diaphragm springSingle chip, dry type,
diaphragm spring
Driven disc diameter:
200 mm
Clutch disc diameter:
213 mm
Driven disc diameter:
212 mm
Maximum stroke: 9 mm, separating stroke: 7.5 mmSeparating stroke:
7.5 mm
Clutch hydraulic pressure
control systemClutch pedal total stroke: 116.5mm
Transmission
Transmission
model number037ACC0011AZM007QZM007W
Transmission typeMechanical 5-gear manual transmission
Main speed
reduction ratio3.9444.31254.2673.937
Gear
transmission
ratio
1st gear3.5453.5453.3643.182
2nd gear1.9131.9051.8951.895
3rd gear1.3101.3101.2861.25
4th gear0.9730.9700.9690.91
5th gear0.8040.8160.8000.703
Reverse
gear3.2143.2503.2143.08
Maximum bearing
torque (N·m)130160153153
Maximum input speed
(r/min)6000
Propeller shaft
The input end of the propeller shaft adopts a widely used, near constant
velocity, retractable spherical roller wheel joint. The output end adopts a
Rzeppa joint.
Air intake systemDry air filter, paper filtering element.
Exhaust system
Equipped with GW413EF engine, two grade muffler with two grade three-
way catalytic converter. Front/rear oxygen sensors.
Equipped with YC4W75-31 engine, two grade muffler with one grade three-
way catalytic converter and oxygen sensor.
Fuel supply system
Equipped with GW413EF engine. The 45L metal fuel tank includes an
electronic fuel pump and a charcoal canister. An electronic accelerator pedal
controls the fuel supply. The fuel evaporation control system controls the
charcoal canister through a solenoid valve
Equipped with the YC4W75-31 engine. High pressure electronic common-
rail fuel injection and dual fuel pipeline. The 45L metal fuel tank includes an
electronic fuel pump and a charcoal canister, electronic accelerator pedal, a
fuel line is connected with the fuel-water separator and diesel fuel filter.
Cooling system
The cooling system uses the enclosed forced water circulation cooling
system, the heat dissipating electronic fan uses a two level speed controller.
The electronic fan and overflow tank are combined in one. The radiator is
equipped with upper and lower water chamber aluminum pipe. The system
pressure is 90 kPa.

Downloaded from www.Manualslib.com manuals search engine GWFLORID Maintenance Manual96
Brake System Maintenance
Brake fluid inspection and replacement
Brake fluid directly influences the brake performance and the operating conditions and use life of the brake
system components. Brake fluid has very strong hygroscopic properties, and thus absorbs water easily,
which will then deteriorate the metal and rubber pieces. Polluted and deteriorated brake fluid or its mixture
would cause the brake fluid to boil and gasify, hence reduces braking efficiency. Therefore, pay attention to
the items below when filling or changing the brake fluid:
1. Containers used to hold brake fluid must be tightly closed and sealed
2. Brake fluid is poisonous and damaging to the paint. Hence if it gets on the vehicle surface, rub it
off at once
3. If water or other contaminates found in the brake fluid, and the brake master cylinder's piston seal
has been broken, then the brake fluid and all the rubber pieces inside the brake system including
the brake hose must be replaced
4. The correct brake fluid level in the reservoir must be between MAX and MIN. After the vehicle has
been driven for over 1000 km, check the brake fluid level in the reservoir. If the brake fluid level is
not up to regulation, more brake fluid should be added to the reservoir \
until it reaches MAX.
Hydraulic component inspection and system flushing
1. If the oil-based solvent gets into the hydraulic system, flush the whole system and change all of
the rubber pieces
2. Clean your hands before installing new rubber pieces or other components
3. Do not use regular solvents (kerosene, gas, etc.) when inspecting or cleaning hydraulic
components, instead use absorbing alcohol or brake fluid
4. After inspecting the components, drain the brake fluid from the system. Use new brake fluid to
flush the system. Afterwards, add new brake fluid to perform hydraulic system exhaust
5. Flushing completion sign: When the brake fluid flowing out of the dump valve is clear from any
contaminate.
Hydraulic pressure system drainage
If the brake fluid inside the whole hydraulic pressure system needs to be emptied, open all the bleed screws
with each connected to a hose, as to allow the brake fluid to flow into a container. Step on the pedal slowly
until only air flows out. During the whole procedure, make sure all the \
valves are open.
Hydraulic pressure system air bleeding
The hydraulic brake system must work under a vacuum environment. The air will cause spongy brake or
overall brake failure when it flows into the hydraulic system. It is extremely necessary to bleed system air
when performing any operation on the brake system or if any air inside t\
he brake system is suspected.
1. Air bleeding sequence
If air inside the brake master cylinder is suspected, first perform air bleeding.
(a) If numerous valves are equipped, air bleed each valve
(b) Another sequence principle is: Air bleed from the wheel brake furthest away from the master cylinder.
The air bleeding sequence for the LHD modules is: rear right wheel - left rear wheel - front right wheel
- front left wheel, Right rudder vehicles: rear right wheel - left rear wheel - front left wheel - front right
wheel.
2. Air bleeding method
(1) Manual air bleeding
Use the brake pedal or pump as the air bleeding power source. When the air bleed screws are open, vent the
brake fluid containing the bubbles from the system. Usually this is simultaneously done by two people. One
steps on the brake pedal and the other operates the air bleed screws. Important points to take note of when
performing the operation:
(a) Place the ignition switch to the off position and step on the pedal repeatedly to remove the
vacuum pressure or hydraulic pressure.
(b) Before and after air bleeding, add clean brake fluid into the master cylinder until it reaches
the correct (stated) level.
(c) Check the fluid level frequently to make sure that more than half of the reservoir's capacity is
available.
(d) Bleed screws should only be opened when the pedal is pressed down, and closed before the
pedal is loosened. Meanwhile, check if the vented brake fluid has bubble\
s inside.

Downloaded from www.Manualslib.com manuals search engine 169Vehicle Body Electronic System
Combination meter system
Connected engine ECU #8
Connected engine ECU #59
To light brightness
regulator switch
Parking brake lamp
Parking brake switch
Brake fluid level switch
Oil pressure switch
Driver seat belt switch
Fuel sensor
Speed sensor
Connected combination meter A
Driver seat belt switch Connected parking brake switch Fuel pump, fuel sensor Coolant temperature sensor Engine speed sensor
Speed sensor Connected combination meter B
Brake fluid level warning switch
Brake warning lamp
Low oil pressure indicator
Seat belt unfastened indicator
Low fuel alarm Fuel gauge
High water temperature alarm
Low water temperature alarm
Connected coolant
temperature sensor Connected central
control ECU #18
IC module
LCD display
Odometer
Tachometer

Downloaded from www.Manualslib.com manuals search engine 209Air Conditioning System
Compressor Removal
1. Hoist the vehicle with a jack.
2. Remove the bottom mudguard.
3. Remove the compressor.
Compressor Installation
Before installing, manually rotate the compressor several
circles, allowing each component in the relative motion to be
covered with lubricant.
Clearance between the compressor's auricular branch and
bracket should be less than 0.1 mm. If the clearance is too
big, fill the clearance with a washer.
1. Loosen the engine's adjusting bolt firstly, take down the
engine belt, and then change the compressor belt.
2. Fix the compressor bracket onto the engine body with
the bolts. The bracket must be fastened tightly with suf-
ficient intensity. Fix the compressor bracket onto the
engine with four M10 ×1.25 (Q1461030 FD) bolts and
a tightening torque of 45±5 N·m, and then install the
compressor onto the bracket with a tightening torque of
22±3 N·m.
3. Ta k e o ff t h e s u c t i o n a n d e x h a u s t c a p . S e l e c t t h e
suction duct and exhaust duct that matches the size
of the suction and exhaust port to connect with each
other (size of suction and exhaust port shown in the
diagram). Then tighten the coupling bolt.
Water pump pulley
Engine pulley
Tensioner pulley
Steering pump pulley
Crank pulleyCompressor pulley
Suction port (S-end) sizeExhaust port (D-end) size
C-C 2:1B-B 2:1
4. Put the 4PK850 type compressor belt onto the pulley,
and then adjust the bracket to make the belt reach the
specified tension. That is, if a force of 100-120 N is
used on the belt, deformation of the belt is 8-10 mm.
5. Insert the thermal protector plug into the relevant plug
of the air conditioning system's wire harness.

Downloaded from www.Manualslib.com manuals search engine GWFLORID Maintenance Manual212
High pressure side pressure(MPa)
Appropriate pressure
Appropriate chargeExcessive charge
Refrigerant charge (g)
5. When charging the refrigerant, carefully observe the
high pressure side of the manifold pressure gauge as
well as the refrigerant's rate of flow (limpid, foamy, hazy)
which can all be seen from the inspection window. Use
this window to determine the appropriate time to stop
charging the refrigerant (by closing the low pressure
valve).
When the compressor is operating, please do not close the
high pressure valve.
Before inspecting the cooling level, confirm the regulated
refrigerant charge quantity for the air conditioning system.
Determine the charge amount for the refrigerant charge.
Please carry out the setup according to the following
working conditions.
Engine's water tank temperature: steady
Engine speed: normal idle
A/C switch: ON
Blower speed control switch: highest gear
Temperature controller: inner circulation
Door: completely open
Window: completely open
Filling Quantity and Method for Refrigerant Oil
First vacuum the refrigerant system to 0.2 × 10-5 Pa, then fill it with model number RS20 refrigerant. The steps
are as follows:
1. Close the high pressure, manually operated valve and the auxiliary valve\
.
2. Remove the high pressure side's hose from the manifold pressure gauge an\
d insert it into the oil cup.
3. Open the auxiliary valve and draw the refrigerant from the oil cup to th\
e refrigeration system.
4. When refrigerant in the oil cup is about to be fully vacuumed, immediately close the auxiliary valve, in
order to avoid sucking air into the system.
5. Screw the high pressure side hose connector onto the manifold pressure gauge, start the vacuum
pump and open the high pressure, manually operated valve, then open the auxiliary valve to vacuum
the system until it reaches 0.2 × 10-5 Pa, and continue to vacuum for 15 minutes to exhaust the air
which is entering the system following the oil.
Caution: When replacing an old compressor with a new one, be sure to bleed out some oil in order to
level off the new and the old compressor's oil level, and to avoid an excessive oil amount influencing
the cooling effect. When using an old or repaired compressor, be sure to keep the refrigerant inside
the compressor the same level as the one that is being replaced.
Daily Maintenance of the Air Conditioning System
In order to guarantee the air conditioning system's normal operation, regular maintenance should be performed.
Daily maintenance for the air conditioning system is as follows:
1. Inspect and clean the air conditioning system's condenser. The cooling fin's insides need to be
cleaned, with no blockage in between. After driving in the rain or on a muddy road, check the
condenser fan for silt or rocks. If any are found, immediately clean the\
m up.
2. Inspect the refrigeration system's refrigerant amount: When the air conditioning unit is operating
normally, observe the oil check glass. Under normal conditions, the oil check glass should have no air
bubbles.
3. Inspect the drive belt. The belt between the compressor and the decoration cover should be tight\
.
4. Check the air conditioning system to make sure there is no irregular noi\
se or unusual odors.
5. Check the compressor's inlet and exhaust port areas to make sure the tem\
perature is normal.
6. Check to make sure the appearance of the refrigeration system's hose is correct and that all the
connections are firm.
7. Inspect if the refrigeration system's pipelines run into other components, and any traces of leaking oil
at each connection.
8. Check and make sure the refrigeration system's circuit connector is firm, and any sign of circuit
disconnection.
9. Inspect if the compressor's fastening bolts are sturdy, reliable or flawed.
the refrigerant into the refrigeration system in the gas
form), and open the manifold pressure gauge's low
pressure valve.