Geely Emgrand X7. Manual part — 125

2.6.8.19 Replacement of Balance Shaft

Dismantlement Procedure

1. Dismantle the engine. Refer to

2.6.8.13 Replacement of Engine.

2. Refer to 3.3.6.3 "Replacement of

Gearbox Assembly" to dismantle
the gearbox assembly.

3. Dismantle oil pan, refer to 2.9.8.3

Replacement of Oil Pan.

4. Dismantle the fixing bolts of

crankcase according to the
sequence in the graph.

5. Dismantle

the

crankcase.

1

2

6

10

7

3

5

9

11

8

4

GC03-0077c

6. Dismantle the fixing bolts of

balance shaft bearing cover
according to the sequence in the
graph.

1

7

5

3

2

4

6

8

GC02-0078c

7. Dismantle balance shaft bearing

cover.

8.

Dismantle balance shaft
component I.

GC02-0079c

499

9.

Dismantle balance shaft
component II.

GC02-0080c

10. Dismantle the balance shaft

bearing.

GC02-0081c

Inspect balance shaft thrust clearance and balance clearance:

1. Inspect balance shaft thrust clearance

(a) Install the balance shaft (Refer to the “Balance Shaft Installation”)

(b) During moving the balance shaft fore and after, the dial indicator can be used to measure the

thrust clearance.

Standard thrust clearance: 0.05mm～0.09mm

If the thrust clearance can not meet the requirement, the balance shaft housing and bushing
should be replaced; If necessary, replace the balance shaft.

2. Inspect the balance clearance

(a) Clean each shaft bushing and neck.

(b) Inspect the corrosive pitting and scratching on each shaft bushing and Journal. If damaged,

replace the shaft bushing. If necessary, replace the balance shaft.

(c) Place No.1 and No.2 balance shaft on the crankcase.

(d) Place one plastic gap gauge over each Journal.

(e) Install the balance shaft housing (refer to the “Installation” section).

Remarks: Do not rotate the balance shaft.

500

(f) Dismantle the balance shaft (refer to the "Dismantle" section)

(g) Use the plastic gap gauge to measure the maximum width along the clearance.

Standard Clearance:

0.016mm～0.028mm

Remarks: Totally dismantle the plastic gap gauge after measurement.

If the clearance does not meet the requirement, replace the shaft bushing. If necessary, replace the
balance shaft.

(h) To replace the bearing, the shaft bushing of the same gauge should be used. If the gauge of

the balance shaft bushing cannot be identified, the group No. of the Journal aperture
dimension of the balance shaft housing and the balance shaft bushing group No. can be used
to choose the correct balance shaft bushing. (Group No. of the Journal aperture dimension of
the balance shaft housing = Balance shaft bushing group No.)

Installation Procedure:

1. Smear the oil on the internal

surface of the balance bearing.

Note: Do not smear the oil on the
back surface and other contact
surfaces of the bearing.

2. Install the balance shaft bearing

to the crankshaft housing.

GC02-0081c

3. Install crankshaft case body .

And tighten fixing bolt as per
orders in the figure t.

11

10

6

2

5

9

7

3

1

4

8

GC02-0082c

501

4. Install balance shaft component I.

5. Install balance shaft component

II.

6. Turn crankshaft until the cylinder

#1 crank arriving at the bottom.

Note: as shown in the figure, align
the No.1 balance shaft and the No.2
balance shaft, so that the mounting
hole for reference is located in the
vertical plane.

5.6°

5.6°

安装参照孔

正时标记

GC02-0083c

7. Install the balance bearing cover

and tighten the bolts by the order
shown graph.

Balance bearing cover bolts should be
tightened in two steps with the first
tighten torque of21.5±2N·m,and the
second tighten torque of 38±3N·m。

8

2

4

6

7

5

3

1

GC02-0084c

8. Turn the crankshaft once again to

make the crankshaft front end
Woodruff key facing toward the
top of the engine (at this point,
piston of the Cylinder #1 is at the
compression TDC position), and
then the positional relationship
between the crankshaft and the
balance shaft is shown as the
figure.

5.6°

5.6°

平衡块分割平面

平衡块分割平面

平衡块分割平面

正时标记

正时标记

GC02-0085c

Timing mark.

Install reference

hole.

Partition plane of

balance block

Timing mark.

Timing mark.

Partition plane of

balance block

Partition plane of

balance block

502