Great Wall. 4G64S4N Gasoline Engine. Instruction — part 5
11-61
ENGINE
STARTER
1EN0298
6EN0612
snap spring clamp
pinion
free engine clutch
rotor
depth
dinion
snap spring clamp
rotor
checking ring
casing tube
snsp spring
6EN0611
magnetic switch
terminal S
terminal
exciting coil
wiring
6EN0616
terminal B
ESSENTIALS FOR DISASSEMBLY
DISASSEMBLY OF MAGNET VALVE
(1)
Knock down exciting coil from terminal M of the magnet valve.
DISASSEMBLY OF ROTOR AND BALL
(1)
Do not drop the ball mounted on the end of bearing while
disassemble the rotor.
DISASSEMBLY OF SNAP SPRING AND CHECKING
RING
(1)
Push and press the checking ring to the free engine clutch with a
proper casing tube to separate it from the snap spring.
(2)
Dismantle the snap spring with a snap spring clamp first, then
disassemble the checking ring and free engine clutch.
CLEANING OF STARTER COMPONENTS
(1)
Don
t clean the components in detergent. Immerging the yoke
and exciting coil assembly or rotor into detergent may damage
their insulation property.
(2)
When these components are contaminated, use a piece of cloth to
clean them.
(3)
The driving parts may neither be immerged into detergent.
Because free engine clutches have been lubricated before leaving
factory, if you clean them in detergent, the lubricant inside the
clutch may be washed off.
(4)
The driving part should be cleaned with a brush dipped with
detergent, and toweled off with cloth.
CHECK
COMMUTATOR
(1)
Put the rotor on a pair of V-blocks, check its radial jumping with
a dial gage.
Standard value: 0.5mm
Limit value: 0.1mm
A
B
C
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11-62
ENGINE
STARTER
(2)
Check the outside diameter of the . commutator
Standard value: 29.4mm
Limit value: 28.4mm
(3)
Check the drop depth of mica between commutator separators.
Standard value: 0.5mm
Limit value: 0.2mm
BRUSH HOLDER
(1)
Check whether conduction exists between brush holder plate and
brush holder, if not, it is normal.
FREE ENGINE CLUTCH
(1)
Confirm that the pinion is resisted when rotating to the left while
smoothly rotated when turning right.
(2)
Check the wearing and damages of the pinion.
BRUSH
(1)
Check the roughness of the contact surface of brush and commu-
tator and the length of brush.
Limit value: Wear limit mark
(2)
While rectifying the contact surface or changing new brush, you
may wrap a piece of sand paper around the commutator.
1EN0298
1EN0296
depth
brush holder
mica
6EN0602
brush holder
slacken
fasten
6EN1777
wear limit mark
6EN1778
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11-63
ENGINE
STARTER
(3)
While crumbing worn battery with a plier, be careful not to
damage the soft pigtail.
(4)
In order to make soldering tin easy to be adhered, scrape the soft
pigtail end with a piece of sand paper.
(5)
Insert soft pigtail into the new brush hole and burn it on and be
sure no soldering tin exposed on the surface of brush.
DETECT SHORT CIRCUIT OF ROTOR WINDING
(1)
Put the rotor onto the growler.
(2)
Place the tagger above the rotor and keep it parallel to the central
axis of the rotor, slowly rotate the rotor and observe the tagger.
If it is not magnetized and doesn
t viberate, the rotor is normal.
NOTES:
CONDUCTING DETECTION AFTER COMPLETELY
CLEANING THE SURFACE OF ROTOR.
(3)
Check the insulation between commutator separators and the
iron core of rotor. If conduction fails, it
s normal.
DETECT OPEN CIRCUIT OF WROTOR INDING
(1)
Check whether conduction exists between all commutator
segment, if yes, its normal.
NOTES FOR ASSEMBLY
MOUNTING OF CHECKING RING AND SNAP
SPRING
(1)
Use a proper tool to pull the checking ring from across the snap
spring towards it.
soft pigtail
new brush
sodering (no
soldering tin
exposed on the
surface of brush)
mark
1EN0285
growler
6EN1779
6EN1780
1EN0299
checking ring
checking ring
6EL0099
A
snap spring
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11-64
ENGINE
THROTTLE BODY
THROTTLE BODDY
DISASSEMBLY AND ASSEMBLY
Disassembly Procedure
1.
holder
2.
throttle position transducer
3.
idle air valve
4.
o-ring
5.
throttle body
6.
SAS speed adjusting screw SAS
CLEANING OF THROTTLE BODY
COMPONENTS
1. Clean all throttle body components.
Don
t use detergent to clean the following components:
Throttle position transducer
Idle speed control body assembly
If these components are immerged into detergent, their
insulation property will be damaged.
Only cloth may be used to clean them.
Remarks
1. SAS has been adjusted before leaving factory, so no
adjustment is needed.
2. In case the fixed SAS is dismantled by chance, the speed
adjusting screw of throttle should be fixed up again.
3. In case the throttle speed adjusting screw is dismantled by
chance, it should be readjusted.
2. Check whether the vacuum port or passage is
jammed. Clean the vacuum passage with com-
pressed air.
6EN1782
4.9N.m
3.4N.m
2.9N.m
3.4N.m
3
1
4
6
2
5
N
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