Chery A18. Manual — part 34

REAR OIL SEAL

FLY WHEEL REMOVAL AND
INSTALLATION

Removal

Remove 9 fixing bolts. New bolts shall be used
for installation.

Remove the fly wheel to check whether there
are cracks on the friction surface of the clutch
plate and there is abrasion and pit corrosion on
the teeth of the ring gear, etc.

Installation

The clearance of the ring gear and the fly
wheel is 0.48-0.86mm. The ring gear shall be
pressed into the fly wheel after heating.

The gauge holes of the fly wheel and the
locating journal are easy fit at a clearance of
0.012-0.074mm. It

shall be gently pushed into

the journal after alignment. Do not hammer at
the crank shaft.

During the assembly process, align the
installation mark bore and the manufacturing
bore on the crank shaft. Tighten 9 new bolts
applied with a coat of glue in advance at a
moment of 82-92Nm.

REAR OIL SEAL REPLACEMENT

Removal

Remove 4 bolts (as indicated by arrows).

Take the rear oil seal support assembly out.

Take the rear oil seal support gasket.

Pries the rear oil seal out of the rear oil seal
support with a chisel or a screwdriver. Note: do
not damage the rear oil seal support.

Installation

Put the support on the vice clamp whose jaw
has a piece of wood.

Make the side with the part numbers of the rear
oil seal outward and align the rear oil seal with
the rear oil seal support bore. Press the rear oil
seal into its support with a vice clamp, with the
clearance between the rear oil seal and oil seal
support bore to be 0.26—0.50mm.

Install the new rear oil seal support gasket.

Install the rear oil seal assembly. Before
assembling, wrap a piece of plastic plate on the
crank shaft to avoid colliding the oil seal. And
apply some motor oil on the oil seal edge and
oil seal journal.

Measure the out-of-flat of the bottom plane of
the rear oil seal bracket and the sump flange
surface of the cylinder block, which shall be
within the range of ±0.26mm.

Tighten the 4 M6 bolts to a moment of
8.0-11.0Nm.

Take away the plastic tape.

Seal
washer

Bolt: M6*20(4 pcs)
Tightening torque: 8~11Nm

CAMSHAFT

CAMSHAFT GEAR

Removal

Rotate the crankshaft to the compression TDC
position of the first cylinder.

Remove the belt.

Put one pole into one hole of the cam shaft gear to
lock it. Loosen the gear bolts and remove them and
the gasket.

Note:

New bolts shall be used for reinstallation. The
camshafts

of

different

engines

are

not

interchangeable. In case the cam shaft shall be
replaced, replace it with a new one according to
the indicators on the original gear.

Installation

Check whether there are abrasion, pit corrosion or
scrapes on the gear.

Install the whitney key of the cam shaft, with a
protrusion height of 1.64-2.11mm.

Install the camshaft gear onto the camshaft and put
new bolts into the gasket. The new bolts that
haven’t been applied with a coat of glue in
advance shall be applied with a coat of glue first
and be tightened for a moment of 52-60N.m.

Check whether the crank shaft is in the
compression TDC position.

CAMSHAFT AND CAMSHAFT THRUST
SPACER

Removal

Measure the axial clearance of the cam shaft,
which shall be between 0.049~0.129mm.

Loosen the bolts of the thrust spacer to take them
out.

Take the thrust spacer out (as illustrated in the
figure).

Draw the cam shaft assembly out from the rear end
of the cylinder head and be careful not to damage
the cam shaft hole of the cylinder head during this
process.

Inspection

Check whether there is any abrasion on the cam
and the journal of the cam shaft. Change the one
with serious abrasion.

Change the thrust space if the axial clearance of
the cam shaft is above the specification.

Measure the bore diameter of the cam shaft of the
cylinder head or check the relative displacement of
the journal and bore with the cam shaft. Change the
cam shaft if the bore is excessively wore.

Cam Height

Engine model

Admission cam T (unit: mm)

Exhaust cam T (unit: mm)

480

38.602

37.586

480E

37.559

37.559