Chery S11 / Chery QQ. Manual - part 219

                         

SQR7080  Maintenance Manual           372 Engine Mechanical System 

 

19

 

 
(3) Put SST on the valve thrusting rod from inside of 
cylinder head,pay attention noy to press the adjusting 
gasket,shown as the illustration. 
   
(4) Turn the crankshaft to make the top of the cam 
vertically upwards. Use special tools to press down the 
valve thrusting rod and hold it in the place firmly. 
 

 

  (5) Use a screwdriver to stir up the separation cushion, 
and use magnet bar to remove the separation cushion 
from inside. 
 

 

 (6) Turn the crankshaft to make the cam top facing 
downward. Press down the valve and use special tools to 
remove it. 
 
  (7) Turn the crankshaft for 2—3 circles, then confirm 
the throttle spacing. If it fails to be within the benchmark 
value limits, check and adjust the throttle spacing in the 
operational procedures described in (1)—(9). 
 

 

 

SST 

SST 

SST 

 
4. Cylinder head 
4-1 Configuration diagram (Do the following operations in the procedures for the dismounting and 
installation of the camshaft) 

                         

SQR7080  Maintenance Manual           372 Engine Mechanical System 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

（

1）     Spark plug20±1Nm   

（

2）     Cylinder head 

（

3）     Weather sealI 

（

4）     Cylinder head gasket 

（

5）     Adjust shim 

（

6）     Valve lifter 

（

7）     Keeper 

（

8）     Valve spring seat 

（

9）     Valve spring 

（

10）  Iintake valve 

（

11）  Exhaust valve 

（

12）  Valve oil seal 

（

13）  Valve seat 

（

14）  Valve guide 

 

※：

Non-reusable part 

Unit：N·m(kg·cm) 

 

 

   
4-2 Dismounting 
1、Removal of spark plug 
 
 

 

20

                         

SQR7080  Maintenance Manual           372 Engine Mechanical System 

 

21

 

 

 
2 There are 8 cylinder cover bolts. In the process of 
removing the cylinder, please follow the sequences shown 
as the right illustration, loosen the bolts one by one 
evenly and gently. 
 

 

3 Removal of the cylinder dustproof sealing and cylinder 
cover base. 
[Attention] The cylinder cushion can not be used 
repeatedly. 
4 Removal of throttle adjusting separation cushion and 
valve thrusting rod 
5 Use special tools to remove the valve spring locking 
block, throttle spring stand,valve spring, IN valve and EX 
valve 
 
 
6 Removal of valve oil seal and valve spring washer 
 

 

4-3 Clearing 
1 The accumulated carbon residue covered on the valve 
must be cleared. 
2  Use scraper to clear the cylinder cover, the air inlet 

and exhaust branching pipe surfaces and bottoms 

         
[Attention]   
Do not damage the cylinder cover surface by scraping 
during the process of clearing. 
Do not drop filth into the air inlet and the water channel. 
 

 

4-4 Routine checks 
4-4-1 Cylinder cover 
1 Use the straight knife sharp edge ruler to measure the 
levelness at various points as shown in the figure. 

Cylinder cover 0.10mm 
Air inlet branching pipe surface 0.10 mm 

 

SST 

                         

SQR7080  Maintenance Manual           372 Engine Mechanical System 

 

22

 

 
 
2 Use a square ruler to measure the right angle of the 
valve spring. Replace the spring if it fails to meet the 
specifications. 
[Limit] 1.2mm 
 

 

 
3 Measure the free state of spring 
  [Benchmark value] 37mm 

 

 

                                           
4-4-3 Throttle 
Routine checks on throttles 
1. Check to see if there are some deformations, obvious 
tears and wears 
 Routine check list on valve      Unit:mm 

Item Standard 

Limit 

IN

0.85～1.41 ___ 

Wide 

E

X

1.07～1.36 ___ 

IN

1.0±0.2 0.75 

Width of valve top 

E

X

1.0±0.2 0.75 

 

                     

 

(2) 

Checks on the clearance between the throttle guiding 

pipe and throttle thrusting rod 
1    Use a dial gauge to measure the inner diameter of the 
throttle guiding pipe, and use a caliper to measure the 
outer diameter. 

 

 
 
 
 
 
 

Measure outside 
diameter 

Width 

Measure point