Chery A18. Manual — part 30

DRIVER BELT, TENSION PULLEY AND
GENERATOR

Removal

Pull the abutment on the tension pulley by tools
to the direction of the generator (or align the
gauge holes on the front and rear part of the
tensioning device and drive a pin to fix the
tensioning device).

Remove the driver belt and the two fixing bolts
on the generator to take the generator out.

For installation, reverse the above removal
steps.

Tension pulley and Generator Bracket

Removal

Remove the three fixing bolts on the belt tension
pulley to take it out.

Loosen the connecting nuts on the cylinder head
and binding bolts on the cylinder block on the
generator bracket.

For installation, reverse the above removal
steps.

DETERMINATION OF ENGINE TIMING
（TDC FOR CYLINDER 1）

Unscrew 2 M6 bolts to remove upper timing gear
cover. Put one wrench on the bolts of crank
pulley, rotate the crank shaft clockwise (seeing
from the direction of pulley) until the top dead
center (TDC) gap indicator on the pulley lines up
with the TDC indicator (O) on the bottom timing
gear cover.

Note: The spark plug can be taken away

before rotating the crank for labor
saving.

Check whether the TDC indicator on the cam
shaft gear lines up with that on the front end of
cylinder head. If not, rotate the crank shaft
clockwise in one full circle to make them line up
with each other. At this time, the engine is in the
position of TDC of the first cylinder.

In case the crank pulley and timing gear have
been removed, the TDC for the first cylinder can
be determined as follows:

Rotate the crankshaft to make the TDC indicator
on the crank pulley line up with that on the oil
pump body. Check whether the TDC indicator on
the cam shaft gear lines up with that on the front
end of cylinder head. If not, rotate the crank shaft
for one circle to make the cam gear indicator line
up with that on the cylinder head.

VALVE CLEARANCE

VALVE MECHANISM COMPONENTS

Rocker arm (8 pcs)

Rocker nut (16 pcs)
Tightening torque: 25~29Nm

Rocker ram seat (8 pcs)

Valve keeper (16 pcs)

Rocker ram seat washer (8 pcs)

Hydraulic tappet (8 pcs)
Clearance: 0.023~0.065

Upper seat of valve
spring (8 pcs)

Valve spring (8 pcs)

Rocker arm stud (8 pcs)
Torque: 18~23Nm

Lower seat of valve

spring (8 pcs)

Exhaust valve (4 pcs) (LH)
Clearance: 0.046~0.095

Intake valve (4pcs) (RH)
Clearance: 0.02~0.069

VALVE COVER AND GASKET

Removal

Remove 9 bolts to take out the cupped gasket
and high tension wire support, clutch and
throttle cable support.

Remove the valve cover and gasket assembly.

Take the sheet gasket out.

Installation

Clean the junction face of the cylinder head
and the valve cover.

Push the wedge of the sheet gasket for the
valve cover into corresponding valve cover to
integrate them.

Install the combined valve cover and sheet
gasket assembly on the cylinder head.

Put 9 hexagonal-head long cylindrical end
bolts into the cupped gaskets and supports and
screw them into the cylinder head.

Tighten the bolts in 2 steps according to the
graphics and tightening order. First step:
tighten

them

to

the

moment

of

4.0-6.0Nm.Second step: tighten them to the
moment of 8.0-10.0Nm.

Cupped
gasket

Valve Cover

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