Chery Fora (Elara A520). Manual — part 167

CHERY A21 SERVICE MANUAL

MECHANISM OF 2.0NALC ENGINE

41

6.2

Installation

1)

Clean the oil seal seat ring. Clean the oil
seal seat ring with clean oiled gauze.

2)

Spread the oil at the lip of crankshaft
front oil seal.

Enclose the

guide sleeve of crankshaft oil

seal

, special tool, with that oil seal. Then

press it into oil seal seat ring.

3)

Mount the flywheel and the clutch
pressure plate, and then mount the
engine on the vehicle.

Torque:25±5N.M, then screw 30°±5°.

7. Replace crankshaft and thrust washer

7.1 Needed tools and auxiliary materials

A set of open end wrenches, a set of sleeve
tools, a small hoist, Le Tai glue, Engine oil,
feeler gauge, feeler gauge, micrometer gauge.

7.2 Process of Removal

1)

Suspend the engine assembly from
vehicle (See “suspending of engine
assembly” for details）.

2)

Drain out the engine oil.

3)

Remove the timing belt (see “replace
timing belt” for details).

Guide Sleeve of Crankshaft Oil Seal

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4)

Dismantle the accessories, such as
dynamo,

A/C

compressor,

power

steering pump and bracket. （ See the
“replacement of engine accessory” for
details）

5)

Dismantle the engine cylinder head
assembly. （ See the “replacement of
cylinder head” for details）

6)

Dismantle the engine clutch pressure
plate, the flywheel and the timing belt
pulley.

7)

Remove the oil pan and engine oil
strainer.（See the “replacement of oil pan
and strainer” for details.）

8)

Remove the piston connecting rod
assemblies for 4 cylinders and Put them
in order.

Note: You’d better stick the number on each
piston connecting rod assembly to prevent
from wrong mounting.

9)

Dismantle engine oil pump assembly.

10) Dismantle the frame assembly under

cylinder

block

and

remove

the

crankshaft and thrust washer.

7.3 Inspection

1)

radial clearance of crankshaft

a): Clean the journal and bearing bushing.

b): Install crankshaft

c): Make the length of plastic clearance

gauge equal to the width of bearing.
Then put it on the journal paralleling the
axis.

Clearance Gauge

CHERY A21 SERVICE MANUAL

MECHANISM OF 2.0NALC ENGINE

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d):

Mount the main bearing cap carefully
and screw down the bolt with
specified torque.

e):

Dismantle

the

main

bearing

cap

carefully.

f):

Measure the width at the most bread
part of pressed plastic line with ruler on
plastic clearance gauge package, then
get clearance value.

Standard Value

Clearance

-0.0035-0.034

Replace the new bearing bushing if the
measured clearance value exceeds the limit
value.

Note: Replace the whole group when
replacing bearing bushing.

Selecting method of main bearing bushing:

By observing the sign on cylinder (see the
picture), we could see 5 As which correspond
to bearing bushings respectively.

There two kinds of signs on this vehicle, A
and B, corresponding to two kinds bushing,
red one and blue one (the color can be
recognized on the new bushing but it is
possible unrecognized the color on the old
one.) A corresponds to red bushing, and B
corresponds to blue bushing.

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2)

Inspect the crankshaft axial clearance

Mount the crankshaft and measure its radical
clearance with micrometer guage.

Standard Value

Clearance

0.076—0.265

Replace the new thrust washer if the
measured value exceeds the limit value.

Standard thickness of thrust washer:

7.4

Installation

1)

Clean the engine and spread the engine
transmission oil on the crankshaft
journal.

2)

Mount the crankshaft correctly and then
mount the thrust washer.

3)

Mount the cylinder frame and screw
down the crankshaft fastening bolt.

See the picture for the screwing sequence

Screwing way and Torque:

A:

Pre-fasten the bolt according to the
sequence in the picture.

B:

Screw the bolt as the sequence on the
picture to 45±5 N.m.

C:

Screw 180±5°

4)

Mount and screw down the bolt of
frame periphery.

Torque: 23N.m

5)

Mount the engine oil strainer, oil pan,
crankshaft front and rear oil seal and oil
pump.

6)

Mount the engine accessories, suspend
the engine assembly from vehicle and