Chery SQR 7160 sedan. Manual — part 25

CAC Gasoline Engine Maintenance And Servicing Manual

18

Engine removal and assembly procedure

【1】、Positioning no.1 cylinder top dead center (compression)

——Remove two M6×55 flange-shaped bolts, remove
upper timing gear cover.
——Install a wrench on crankshaft pulley bolt, rotate

crankshaft Clockwise (viewed from the direction of pulley)
until the TDC notch on crankshaft pulley aligns with the
TDC mark (0) on timing gear cover.

Note：Before rotation，spark plugs may be removed to
reduce effort.

——Check whether the TDC mark on the camshaft gear
aligns with the mark on the front end of cylinder head. If
not aligned, rotate crankshaft one turn，aligning the TDC
mark on the camshaft gear with the TDC mark on the front
end of cylinder head，engine should be at no.1 cylinder
TDC .
——With crankshaft pulley and lower timing gear
removed，position no.1 cylinder at TDC as following:

Rotate crankshaft, aligning the TDC mark on the

crankshaft gear shaft with the TDC mark on the oil pump
case. Check whether the TDC mark on camshaft gear
aligns with the TDC mark on the front end of cylinder
head. if not aligned, rotate crankshaft one turn，aligning
the TDC mark on camshaft gear with the TDC mark on the
front end of cylinder head.

Fig.3

Fig.2

Fig.1

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CAC Gasoline Engine Maintenance And Servicing Manual

19

【2】、Upper and lower timing gear cover assemblies removal and installation

Removal：
——Loosen and remove 2 bolts for upper timing
gear cover assembly.
——Remove upper timing gear cover and seal
assembly.
——Remove seal gasket and shot nail from
upper timing gear cover.
——Remove crankshaft pulley.
——Loosen and remove 2 bolts for lower timing
gear cover assembly.
——Remove lower timing gear cover and seal
gasket assembly.
——Remove shot nail and seal gasket from
lower timing gear cover.
Installation：
——Clean lower timing gear cover.
——Mount new seal gasket with shot nail or
glue on lower timing gear cover.
——Install lower timing gear cover and seal
gasket on crankshaft，finger screw in 2 bolts and

tighten to 9.0—11Nm.
——Clean upper timing gear cover.

——Mount new seal gasket with shot nail or glue
on lower timing gear cover.
——Install upper timing gear cover seal gasket
with 2 bolts on cylinder block，tightening torque
is 9—11Nm.

【3】、Crankshaft pulley removal and installation

Removal：
——If engine is equipped with starter，remove
three M10×30 or M10×35 bolts and remove
starter.
——Block flywheel ring gear with a appropriate
screwdriver or lever, preventing crankshaft from
rotating.
——Loosen crankshaft pulley mounting bolts，
remove bolt and cushion block.

——Pull out pulley, if necessary, puller may be

used.

upper timing gear cover assembly

Bolt

Tightening
torque

Tightening
torque

Lower timing gear cover assembly

Fig.4

Fig.5

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Installation：
——Clean pulley and crankshaft journal，remove the
oil in pulley groove .
——Install pulley on crankshaft journal, aligning
keyway with semicircular key.
——Slip cushion block onto bolts and finger screw
in.
——Block flywheel ring gear with screwdriver,
preventing crankshaft from turning.
——Tighten bolts to 100—115Nm.

【4】、Valve cover and seal gasket removal and installation

Removal：
——Remove 9 bolts and butterfly gasket.
——Remove valve cover and seal gasket
assembly.
——Remove seal gasket.

B

u

tte

rf

ly

w

a

sh

e

r

pulley

Tightening torque

bolt

Valve cover

Fig. 7

V

a

lv

e

c

o

v

e

r

se

a

l g

a

sk

e

t

Fig.6

Fig.8

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CAC Gasoline Engine Maintenance And Servicing Manual

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Installation：

——Clean cylinder head and valve cover
contacting surface.
——Push the wedge of valve cover seal gasket
into appropriate valve cover groove,
integrating valve cover with seal gasket.

——Install valve cover and seal gasket
assembly on cylinder head.
——Install 9 hexagon head bolts of long
column end with butterfly gasket，finger screw
them into cylinder head.
——Tighten bolts in two steps in order as
diagram showed.

Step 1：Tighten to 4.0—6.0Nm
Step 2：Tighten to 8.0—10.0Nm

【5】、Timing belt removal, installation and adjustment

Removal：
——Rotate crankshaft to no.1 cylinder compression TDC.
——Loosen 2 tension pulley mounting bolt (as arrow
indicated in diagram)，push tension pulley aside with a large
screwdriver.
——To release belt tension，tighten 2 tension pulley mounting
bolts with tension pulley in this position.
——To reuse belt，mark the direction of belt rotation and
make reference mark on crankshaft gear and camshaft gear
matching teeth，remove belt from camshaft gear, water pump
gear and crankshaft gear.

Fig.11

Fig.12

Fig.9

Fig. 10

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