Chery Tiggo T11 LHD. Manual — part 78

（ 3 ） Disassemble the special tool

(MD998442) and check whether the
plunger could be pressed. If it is not
easy to press the plunger, the
hydraulic erect post is normal. If it is
easy to press the plunger to the end,
the hydraulic erect post should be
exhausted again and then be
checked again. If the plunger is still
loose, the hydraulic erect post should
be replaced.

Caution:
·After the exhaust of air, the

hydraulic erect post should be
kept erect to avoid outflow of the
internal diesel oil.

（ 4 ） After the exhaust, the hydraulic erect

post should be installed in special tool
(return leakage tester).

（5）When the plunger sinks a little(0.2～

0.5mm), measure the time it needs to
sink a second 1mm. If the
measurement value is not conformed to
the standard value, replace the
hydraulic erect post.
Standard value: 4

～20seconds/1mm

(applying diesel oil of 15

～20 )

℃

hydraulic

erect post

MD99844
0

graduation=

1mm

III.

Disassembling

and

assembling of cylinder cover,
valve

Disassembling steps

1.

bolt for cylinder cover

2.

components for cylinder cover

3.

cylinder gasket

4.

lock for valve spring retainer

5.

upper valve spring retainer

6.

compression spring for valve

7.

intake valve

8.

lock for valve spring retainer

9.

upper valve spring retainer

10 compression spring for valve

11. exhaust valve

12 valve oil seal
13 valve spring retainer
14 valve oil seal
15 valve spring retainer
16 duct for intake valve
17 duct for exhaust valve
18 seat for intake valve
19 seat for exhaust valve

20 cylinder cover

Disassemblin
g illustration

All the internal

parts should be

applied

with

machine oil while

assembling.

78N.m→completel

y

loosen

→20N.m→90

0

+90

0

Disassembling Notice

1

、

Cautions after disassembling

The parts disassembled must be placed according
to the cylinder numbers and intake/exhaust area
respectively.



Disassembling of the bolt of
cylinder cover

(1) Loosen the bolts on every cylinder

cover with special tool. It should be
loosened evenly and gradually.



Disassembling of lock for valve
spring retainer

(1) The disassembled parts such as valve

and spring should be marked with
cylinder No. and installation position,
and should be kept well for use in the
assembling.



Disassembling of valve oil seal

(1)Valve oil seal should not be used
repeatedly.

2

、Installation Notice



Installation of valve oil seal

(1) Install the lower retainer of valve

spring.

(2) Install the valve oil seal in the valve

duct with special tool. Improper
installation may cause leakage.
Caution:



Valve oil seal should not be used
repeatedly.



Installation of valve spring

(1)When installing the valve spring, the end

with identifying color should be faced to the
upper retainer for valve spring.

MB991654

MD998774

油
va
lv
e
oil
se
al

识别颜色
identify
colour



Installation of lock for valve spring retainer

(1)If the valve spring is excessively compressed, the
bottom of upper valve spring retainer will contact with it
and will damage the valve oil seal.

（2）Install the spring lock with special tool.



Installation of bolt for cylinder cover

(1)

When assembling the bolt for the cylinder cover,

make sure that the length of bolt is suitable to the limited
value. If it is larger that the limited value, the bolt should
be replaced.
Limit value (A): maximum99.4mm
(2)

Apply some machine oil to the rippling part of bolt

and washer.

(3)

According to the fastening sequence, tighten the

bolts to the assigned torque with special
tool

（MB991654）.

Fasten torque: 78N.m
(4)

Completely loosen all the bolts.

(5)

According to the fastening sequence again,

tighten the bolt with a torque of 20N.m

(6)

Make a lined painting mark in the bolt end of

cylinder cover and the cylinder cover.
(7)

Tighten the bolt of cylinder cover for

90°according to the fastening sequence.
(8)

Further tighten the bolt for 90°and make sure

that the painting mark in the bolt end of cylinder cover
and that in the cylinder cover aligned.
Caution:


If the tightening angle of bolt is smaller than

90°, the correct tightening torque is not expected.
So while tightening, the correct tightening angle
must be paid much attention to.

length of bolt

油 漆 标 记
painting
mark