Chery A15. Instruction - page 12

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.

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

Seal
washer

B-24

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).

B-25

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

B-26

SIZE OF CAMSHAFT JOURNAL AND
HOLE OF THE CYLINDER HEAD

Installation

To replace the cam shaft, observe the shape of the
rear end of the cam shaft for right selection.

Before installation, apply the cam of the cam shaft
with hyperbolic gear oil or motor oil. The cam
shaft shall be assembled from the cylinder head in
a back-to-front order.

Apply some motor oil to the thrust spacer of the
cam shaft and put the thrust spacer into the groove
of the cylinder head.

Screw two bolts into the threaded holes of the
thrust spacer and tighten them for a moment of
9—13Nm.

Check the axial clearance of the cam shaft, which
shall be within the specified range.

If adopting oversized hydraulic tappet (0.25), a
carefully selected cam shaft shall be used,
otherwise it will block the hydraulic tappet.

1. Standard size

Number of cam shaft

journal

Diameter of cam shaft journal

(unit: mm)

Diameter of the cam shaft hold of the

cylinder head (unit: mm)

1 44.74—44.76 44.783—44.808

2 44.99—45.01 45.033—45.058

3 45.24—45.26 45.283—45.308

4 45.49—45.51 45.533—45.558

5 45.74—45.76 45.783—45.808

2. Oversized (0.38)

Number of cam shaft

journal

Diameter of cam shaft journal

(unit: mm)

Diameter of the cam shaft hold of the

cylinder head (unit: mm)

1 45.12—45.14 45.163—45.188

2 45.37—45.39 45.413—45.438

3 45.62—45.64 45.663—45.688

4 45.87—45.89 45.913—45.938

5 46.12—46.14 45.163—45.188

B-27

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