Chery A15. Manual — part 8

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.

B-8

VALVE CLEARANCE

VALVE MECHANISM COMPONENTS

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

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

Lower seat of valve

spring (8 pcs)

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

Valve spring (8 pcs)

Upper seat of valve
spring (8 pcs)

Hydraulic tappet (8 pcs)
Clearance: 0.023~0.065

Rocker ram seat washer (8 pcs)

Valve keeper (16 pcs)

Rocker ram seat (8 pcs)

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

Rocker arm (8 pcs)

B-9

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.

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Cupped
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Valve Cover

B-10

ROCKER MECHANISM

Removal

Loosen the rocker nuts to take them out.

Take the level bracket out.

Take the rocker arm out.

Take the gasket of the level bracket out.

Place each set of rock arm and level
bracket in one same plastic bag for
distinction. The removed rocker nuts
cannot be reused.

Installation:

Check whether theire is abnormal abrasion on
the contact surface of the rocker. Replace it if
necessary.

Put the rocker seat gasket into the stud.

Lubricate the rocker arm and rocker seat by
motor oil.

Install the rocker arm and seat, screw in the
new nuts by hands, then tighten them for the
moment of 25—29N.m.

Note: The corresponding hydraulic

tappet shall be in the Min.
position before each rocker
arm is installed and tightened
with nuts.

B-11