Chery B11. Manual - part 56

   

Maintenance Manual for Chery·Oriental Son

           

Engine Section

 

           

 

 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Check 

Piston ring 

(1)  Check if there’s damage, excessive wear and 

breach on piston ring. If any, replace it. If 

replacing piston, it is necessary to replace 

piston ring.   

(2) Check clearance between piston ring and piston 

ring groove. If it’s too wide, replace piston ring 

or both of them. 

Standard value： 0.02～0.06mm 
Limit value： 0.1mm 

press in with piston 

               

 

(3)  Put piston ring into cylinder. After using top 

surface of piston to put it away, measure open 

clearance with clearance gauge. When open 

clearance is too wide, replace piston ring. 

Standard value： 

No.1 ring…0.25～0.35mm 

        No.2 ring…0.40～0.55mm 
        Oil control ring…0.10～0.40mm 
Limit value： 

No.1 ring and No.1 ring…0.8mm 

 Oil control ring…1.0mm 
 
 
 

Oil clearance of crank pin (Plastigauge ) 

(1)  Clean the oil on connecting rod neck and 

bearing out. 

(2)  Divide plastigauge into the same length of 

rearing width and put it on crank pin and make 

it parallel to axle center line. 

 
(3) Install connecting rod cap carefully, and screw 

nuts on according to the regulated torque.    

(4)  Disassemble connecting rod cap carefully. 

(5)  Use measuring rule imprinted on the package of 

plastigauge to measure the width of the widest 

part of staved plastic line and get clearance 

value. 

Standard value：0.02～0.05mm 
Limit value：0.1mm 

 

open clearance

piston ring 

plastigauge 

 

2 、

Crankshaft, cylinder block and 

flywheel 

 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

 

 

Daub engine oil  on

all the operation

parts when

installing.

 

6

9 

8 

16 

8.8N.m

7 

19

15 

18

14 

20

13 

17

12 

11 

Disassembling 
illustration 

10 

o

to10

0

o

25N.m+90

2.5kgf.m 

Disassembling steps 

11.

Main bearing cap 

12.

 Lower bearing of crankshaft 

13.

Crankshaft 

14.

Upper bearing of crankshaft 

15.

Crankshaft thrust rearing 

16.

Cylinder block 

17.

Drive board〈A/T〉 

18.

Crankshaft sleeve〈A/T〉 

18.

Jointing board〈A/T〉 

19.

Driving board bolt

〈A/T〉 

 

1. 

Screw rearing of flywheel<M/T> 

2. 

Jointing board<M/T> 

3. 

Flexible flywheel<M/T> 

4. 

Jointing board<M/T> 

5. 

Crankshaft bushing<M/T> 

6. 

Rear cover board 

7. Bell 

housing 

8. 

Rear oil seal cap 

9. 

Rear oil seal 

10.

Main bearing cap bolt

 

 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Check 

Oil clearance of crankshaft 
(Plastigauge ) 

(1)  Clean the oil on main journal 

and internal diameter of bearing 
out. 

(2) Install 

crankshaft. 

(3) Divide plastigauge into the 

same length of bearing width and 
put it on crankshaft journal and 
make it parallel to axle center line. 

 

plastigaug

e

 

(4) Install main bearing cap carefully, 

and screw nuts on according to the 
regulated torque.    

(5) Disassemble  main  bearing  cap 

carefully. 

(6)  Use measuring rule imprinted on the 

package of plastigauge to measure 
the width of the widest part of 
staved plastic line and get clearance 
value. 
Standard value：0.02～0.04mm 
Limit value：0.1mm 

 

Cylinder block 
(1)  Observe if there are defects like 

scratch, rust and corrosion with eyes. 
Use defect detector to check breach. 
If any, fix or replace it. 

(2) Check if the surface of cylinder 

block warps and assure there’s no 
pad scraps or other foreign matters. 
Standard value：0.05mm 
Limit value：0.1mm 

(3) If warping excessively, revise or 

replace it within the permitting 
range. 
Abrasive limit：0.2mm 
Maximum sum of abrasive 
thickness of cylinder block and 
cylinder cap permitted is o.2mm. 
Height  of  cylinder  block(new): 
4G63 284mm, 4G64 290mm 

(4)  Check if there’s scratch and cylinder 

sticking. If it’s disqualified, revise 
(increase the size) or replace it. 

(5)  Check internal diameter of cylinder 

and cylindricality with cylinder bore 
gauge.  

Revise cylinder according to increased 
diameter, replace piston and piston ring if 
wearing badly. Checking position as shown. 

Standard value： 
internal diameter of cylinder  
4G63 85.00～85.03mm 

4G64 86.50～86.53MM 

Cylindricality：≤0.01mm 

12mm

center 

bottom 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 
Cylinder reboring 
(1)  Choose diameter of piston 

increased according to the 
maximum cylinder bore. 

Identification of piston sizes 
Size Identification 

mark 

Increase 0.50 

0.50 

Increase 1.00 

1.00 

 
Note: Imprint size marks on the top of 
piston 
(2)  External diameter of piston used in 

the measurement should be 
measured in the thrust direction as 
shown. 

(3)  According to measuring value of 

external diameter of piston, calculate 
the size of cylinder reboring. 

size of cylinder reboring ＝ external 

diameter of piston ＋
(clearance between piston 
and cylinder)

－

0.02mm(Abrasive 
capacity) 

thrust 

direction

 

Piston external

diameter

 

(4)  Rebore every cylinder bore to size 

of cylinder reboring 
Notice: 
·When boring out cylinder, process 

according to the following 
procedures to avoid errors 
because of temperature 
raising :No.2→No.4→No.1→No.3 

(5)  Cylinder bore which is abrasive to 

the ultimate. (diameter of piston＋
clearance between piston and 
cylinder) 

(6) Check clearance between piston and 

cylinder 
Standard value：0.02～0.04mm 

Remarks: When boring out cylinder, four 
cylinders should be bored in the same 
size which is increased, instead of only 
bore one cylinder. 

Installation notice 

Installation of crankshaft bearing 
(1) Choose bearings that conform to 

crankshaft main journal according to 
the following table. 

     

Combination of crankshaft main journal and 

spindle bore 

Crankshaft main journal 

G

ro

u

p

s 

Identification 

color 

External 

diameter

(mm) 

Identification 

mark of 

spindle bore 

Identification 

mark and color of 

No. 1, 2, 4, 5 

journal bearing

Identification 

mark and 

color of No. 

3 journal 

bearing 

0 1、green 0、black 

1 2、yellow 1、green 

Ⅰ

Yellow 

56.994－

57.000 

2 3、nil 2、yellow

0 2、yellow 1、green 

1 3、nil 2、yellow

Ⅱ

Nil 

56.988－

56.994 

2 4、blue 3、nil 

0 3、nil 2、yellow

1 4、blue 3、nil 

Ⅲ

White 

56.982－

56.988 

2 5、red 4、blue