oil GREAT WALL SO COOL 2006 Service Manual

IN-2
How to use this manual
In order to help you to look in this manual, we marked the chapter
name and main theme at the top of each page.
In order to introduce the repairing items to you, we make the index on
the first page of each chapter, and notices need to be taken during all
repairing operation are also given in the related chapter.
Please read these notices carefully before the repairing work.
The troubleshooting form for each system will help you to diagnose
the system trouble and its cause.
We furnish with the repairing approaches for each possible cause in
the repairing approach column, which will help you to acquire the
solution in a short time. Introduction
How to Use This Manual
Repairing approach
Most repairing operation can begin with referring to these illustrations.
These illustrations can help you identify the parts and their coordina-
tion situation
Example


snapping ring
front minor half-shaft
front speed reducer
and differential

oil seal-front semi-axle
front long
semi-axis

snapping ring
88
N*m
specified torque

Parts that cannot be reused after being used

IN-4
Overall Repairing Description
1. Keep the vehicle clean and prevent it from
damage with guard plate, seat and floor cover
cloth.
2. Put down the dismantled parts in order during
the dismantle process so as to facilitate the re-
assembly
3. Observe the following items:
a) Disconnect the cable cathode from the
accumulator terminal before the electric
operation;.
b) Disconnect the cable from the cathode
connected to the vehicle body when check-
ing or repairing the accumulator where
necessary.
c) In order to avoid the damage of terminal
post of accumulator, loose the bolts first,
then pull up the cable vertically when
dismantling, don
t wring it or prize it.
d) Clean the terminal posts of the accumula-
tor with dishcloth, and do not scrape them
with file or other similar tools to avoid
damage.e) Mount the cable terminal on the post with loosened nut, then
fasten the nut. donít tap the terminal onto the post with
hammer.
f) Be sure to check whether the cover of positive terminal (+) is
well located or not.
4. Check all hoses and wire plugs to verify whether they are
connected solidly and correctly.
5. Parts that cannot be reused after being used.
a) The following parts should be changed with new one regularly:
split pin, sealing washer, O-ring and oil seal, etc.
b) parts that cannot be reused after being used is marked with

 in the element figure.
6. Pre-coated parts
The pre-coated parts including the bolt and nut are coated with
locking seal glue in factory.
a) In case the pre-coated parts are moved due to its fastening,
loosening or other causes, they must be coated again with the
specified seal glue.
b) Coating procedure of pre-coated parts
1) Clear away the former seal glue from the screw thread of
the said parts.
2) Dry the parts with compressed air.
3) Coat the screw thread of the parts with the specified
locking seal glue.
c) The pre-coated parts are marked with the
 in element
figure.
7. When necessary, sealing agent or sealing ring to prevent the
leakage.
8. Each specification shall be followed strictly. And the torque
spanners should be used.
9. Determine the necessity of using the special service tools (SST)
or special service materials (SSM) according to the real situation.
SST and SSM must be used where necessary and the repairing
should be in accordance with the repairing approach. SST list
and SSM list are attached to this manual.
10. Be sure to check whether the rated current of the new fuse is
correct when changing the fuse. The fuse rated current should
not larger than that of securing fitting and the fuse of smaller
rated current must not be used.
11. Be careful to hang or support the vehicle on the suitable place
when propping up or raising it.
a) In case prop up the vehicle at the front or back part, the wheels
must be blocked to guarantee the safety work. Introduction
Overall Repairing Rescription
tighten seal glue

CL-2Clutch
Troubleshooting
Troubleshooting
Trouble Causes Repairing approaches
Difficulty in gearshift
or non-gearshiftOverlarge free stroke of clutch pedal
There is air in clutch pipe
Failure of clutch brake-wheel cylinder
Failure of clutch master cylinder
Overlarge clutch pendulum difference due to incorrect mounting, the
friction liner is stained with oil or is breaking
There is dirty or adhesive materials on spline of input shaft or clutch rib
Failure of clutch pressure plateAdjust the free stroke of pedal
Exhaust the air in clutch pipe
Change the clutch brake-wheel cylinder
Change the master cylinder
Check the clutch rib
Repair according to requirement
Change the clutch pressure plate
Disengagement of gear
box or clutch slipAbrasion of clutch guide shaft
Insufficient free stroke of clutch pedal
The friction liner of clutch rib is stained with oil or is worn
Failure of clutch pressure plate
Seize up of separation forkChange the guide shaft
Adjust the free stroke of pedal
Check the clutch rib
Change the clutch pressure plate
Check the separation fork
Clutch seize-up or
shakingThe friction liner of clutch rib is stained with oil or is worn
Failure of clutch pressure plate
Looseness of engine seatCheck the clutch rib
Change the clutch pressure plate
Repair according to requirement
Looseness of clutch
pedalThere is air in clutch pipe
Failure of clutch brake-wheel cylinder
Failure of clutch master cylinderExhaust the air in clutch pipe
Change the clutch brake-wheel cylinder
Change the master cylinder
Over-loud clutch noiseSeize up of separation fork;
Abrasion or stained spot of separation bearing
Abrasion of guide bearing
Parts looseness in clutch pressure plateRepair according to requirement
Change the separation bearing
Change the guide bearing
Change the clutch pressure plate

CL-3Clutch
Inspection and Adjustment of Clutch Pedal, Air Exhausting of Clutch
Air-exhausting of clutch
Remark: in case operation needs to be conducted for the clutch
system or if there is air in clutch, exhaust the air.
Notice : Do not stain the painted surface with brake liquid,
if any brake liquid is left, wash it away immediately.
1.
Fill the brake liquid into the oil cup of clutch master cylinder;
The oil cup of master cylinder shall often be checked and, if
necessary, added with brake liquid.
2.
Connect the ethene resin pipe to the air-exhausting valve.
Insert the other end of the pipe into the container, half of which
is filled with brake liquid.
3. Air-exhausting in clutch system
a) Move the clutch pedal up and down slowly for several times.
b) Loosen the air-exhausting valve when pressing the pedal
increasingly until there is brake liquid overflowing, then
tighten the air-exhausting valve.
c)
Repeat this operation until the bubble in brake liquid disappears.
Inspection on and adjustment
of clutch pedal
1. Check whether the pedal height is correct
Pedal height that begins from front wall board:
Dr SF
(165
5)mm
SL SK SY SJ
(190-200)mm
2. Adjust the pedal height where necessary
Loosen the locking nut and screw off the adjusting bolts until
the pedal height is correct. Then screw up the locking nut.
Pedal free stroke
3. Check whether the pedal free stroke is correct
Press the pedal lightly until the resistance generated by clutch
occurs.
pedal free stroke: (5-15)mm
4. Adjust the pedal free stroke where necessary;
a) Loosen the locking nut and rotate the push-rod until the
stroke is correct;
b) Screw up the locking nuts;
c) Check the pedal height after the adjustment of pedal free
stroke.
adjusting spot in
pedal height
pedal height
pedal free stroke

CL-4Clutch
Clutch Master Cylinder
Clutch Master Cylinder
Element drawing
SST
Disassembly of master cylinder
1. Tear down the pin of push-rod
2. Tear down the clutch pipe
Disconnect the jointed pipe nuts with SST
3. Tear down the master cylinder
a) Tear down the fixing nuts;
b) Pull out the master cylinder.
spring pin with groove
clutch master
cylinder
18
2
19
1
ring pipe oil cup of clutch master cylinder
springpiston
U-clamppin open pin of nut
open ring
push-rod
gasketdust cover
N*m
specified torque

Parts that cannot be reused after using.nut

CL-5Clutch
Clutch Master Cylinder
Disassembly of oil cup of master cylinder
1. Tear down the oil cup
a) Use the pinch and hammer to tap out the spring pin with
groove;
b) Tear down the oil cup and ring pipe.
Assembly of master cylinder
1. Mount the oil cup
a) Mount the oil cup and the new ring pipe.
b) Use the pinch and hammer to tap in the spring pin with
groove.
Mount of master cylinder
1. Mount the master cylinder
Mount the fixing nuts and screw them up.
2. Connect the clutch pipes;
Connect the clutch pipes with SST
3. Connect the push-rod and mount the pin;
Encase the pin of push-rod with clamping pliers.
4. Exhaust the air in clutch system and adjust the clutch
pedal.

CL-7Clutch
Clutch Cluster
Clutch cluster
Element drawing
flywheel
clutch rib
clutch pressure plate
separation
bearingclamp separation fork
dust cover
30

specified torque
N*m
Disassembly of clutch cluster
1. Tear down the gear box;
Remark: do not leave the gear oil in drying
2. Tear down the clutch pressure plate and the clutch rib
a) Make aligning marks on the clutch pressure plate and the
flywheel.
b) Loosen the fixing bolts gradually until the spring tension
is released;
c) Tear down the fixing bolts to pull out the clutch pressure
plate and clutch rib.
3. Tear down the bearing and separation fork from the gear
box;
a) Tear down the clamp to pull out the bearing;
b) Tear down the separation fork and dust cover.

MT-1
Gear box
page
Notice ........................................................................... MT-2
Troubleshooting ........................................................... MT-3
Dismantle of Gear Box ................................................. MT-4
Mount of Gear Box ....................................................... MT-7
Disassembly of Gear Box ............................................. MT-10
Input Shaft Assembly ................................................... MT-18
Element Drawing ...................................................... MT-18
Inspection on Synchronizing Ring ............................ MT-18
Bearing Change ....................................................... MT-18
Output Shaft Assembly ................................................. MT-20
Element Drawing ...................................................... MT-20
Disassembly of Output Shaft Assembly .................... MT-21
Inspection on Output Shaft Assembly ...................... MT-23
assembly of Output Shaft Assembly ......................... MT-25
Countershaft Assembly And Reverse Idle Gear
Assembly ...................................................................... MT-29
Element Drawing ...................................................... MT-29
Disassembly Inspection and Assembly of
Countershaft Assembly ............................................. MT-29
Assembly of Reverse Gear ...................................... MT-31
Rear Housing assembly ............................................... MT-33
Element Drawing ...................................................... MT-33
Change of Oil Seal ................................................... MT-33
Change of Shaft Bush .............................................. MT-33
Inspection on and change of Position-Limit
Mechanism Cluster ................................................... MT-34
Front Cover of Bearing ................................................. MT-36
Element Drawing ...................................................... MT-36
Change of Oil Seal ................................................... MT-36
Assembly of Gear Box ................................................. MT-37
MT

MT-2Gear Box
Notice
Notice
Notice for disassembly and assembly of gearbox
Notice shall be taken during the gear disassembly and assembly on the soft handle for the parts, especially
for the coupling faces so as to avoid the collision; each part shall be put down in order to avoid the missing
or mistaking.
Notice shall not only be taken in the aforesaid aspects, but also in the following items
1. Wash all parts before assembly (rubber fittings and washers excluded).
2. Various oil seals, retainer rings for shafts, spring-type pins shall not be reused.
3. Lubricating oil shall be coated on the friction surfaces, and lubricating grease shall be coated on the lips
of oil seals.
4. Rolling elements shall not be used to transfer the pressure during the various bearing assembly.
5. Lip-type oil seal must not be sloping when assembling it.
6. The openness at the two ends of the spring collar shall be misfit when assembling the component
elements of the synchronizing instrument, and
7. No part is allowed to leak the lubricating oil when the gearbox locating at its working place.

MT-3
Troubleshooting
Gear Box
Troubleshooting
Non-use of clutch
Non-full separation of clutch
Severely warned tooth rings of synchronizing
fittings
Over-hard locating springUse the right driving approach
Checking for adjustment
Change
Change Difficulty in gear engagement
Over-low oil level
Lubricating oil of inferior quality
Non-timely oil change
Unsuitable axial location or clearance of gears
Bearing damage
Burr or collision on gearAdd oil to the specified level
Change it with the specified oil
Change the oil and damaged parts
Check for adjustment
Change
Repair or change the gear
Oil leakage, oil penetration Oil added above the specified level
Loss or missing of bolts
Vent plug trouble
Sealing element damageAdjust oil to the given level
Reassembling or fasten the bolt according to
the specified torque
Change
Change
Damage of synchronizer Overexert in gear shift
Non-use of clutch
Damage on spring collar of synchronizer
Incorrect mounting of drive shaftChange
Use the right driving approach
Change
Check for adjustment
Non-engagement of gear Trouble in controlling mechanism
Incorrect assembling the locating spring or
steel ball
Invalidation of locating spring
Severely worn gear sleeve or fork groove
Seriously worn toggle forkCheck for adjustment
Reassembly
Change
Change
Change
Burning bearing, burning gear Over-low oil level
Inferior lubricating grease
Non-timely oil change, over-dirty oil
Inter-use of differential oil or usage of
additiveChange damaged parts and add oil
Change the damaged parts and lubricating oil
Change damaged parts and lubricating oil
Change damaged parts and lubricating oil
Difficult in gear disengagement Spring invalidation of synchronizer
Warn inner groove of tooth ring of synchronizer
Tooth ring of synchronizer choked on conical
face
Toggle fork deformation or toggle fork axle
deformation
Severely worn toggle forkChange
Change
Change
Change
Change
Methods for troubleshooting
Over-loud or abnormal noise
Common Failures Causes