Geely Emgrand X7. Manual part — 124

12. Dismantle the thrust film at the

third main bearing support.

Note: Rotate the crankshaft during
removing, so that the thrust film can
exit together to facilitate the removal.

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13. Dismantle the crankshaft.

14. Dismantle

the

crankshaft

vibration damping belt pulley.

15. Dismantle the crankcase main

bearing (upper).

16. Remove the crankcase main

bearing from the main bearing
cap (lower)

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Crankshaft inspection, the
crankshaft bearing clearance
matching inspection procedure:

1. Use the dial indicator and V

Block to measure the radial
runout at the crankshaft main
Journal.

The maximum runout should be: 0.02,
if the runout is under the criterion,
replace the crankshaft.

2. Inspect the crankshaft thrust

clearance.

(a) Install

the

crankshaft.

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(b) Install the main bearing cap with lower shaft bushing and the main bearing bolts, making the

frontal mark on the main bearing cap facing towards the engine front end.

(c) Use a screwdriver to pry the crankshaft fore and after, and measure the thrust clearance with

the dial indicator at the same time.

Standard Thrust Clearance: 0.04mm～0.24mm (Metric)

495

If the thrust clearance does not meet the requirement, thrust film should be replaced in set.

3. Inspect the fit clearance of the crankshaft’s main shaft bushing.

(a) Inspect for the corrosive pitting and scratching on the main shaft bushing and main

Journal.

(b) Install the crankshaft’s main bearing upper shaft bushing (refer to the “Installation”

section)

(c) Place the crankshaft on the cylinder block.

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

(e) Install main bearing cover with bushing on cylinder body, and make the forward mark of

main bearing cover to the front of engine.

Tighten the main bearing cover bolt to the specified torque (see Installation).

Do not turn the crankshaft)

(f) Dismantle the main bearing cap (refer to the “Dismantle” section)

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

Standard Clearance: 0.016mm~0.034mm (Metric)

If the clearance exceeds this range, replace the main shaft bushing of this crankshaft. If necessary,
replace the crankshaft.

To replace the shaft bushing, the main shaft bushing of the same gauge should be chosen. If the
gauge of the main shaft bushing can not be identified, the sum of the numbers printed on the
cylinder block and crankshaft is the correct main shaft bushing gauge. The calculated gauge can
then be used to choose a new main shaft bushing. (Cylinder block main bearing aperture group No.
+ crankshaft)

Installation Procedure:

1.

Clean all the relevant
components.

2. Apply a small amount of engine

lubrication oil to the crankshaft
bearing.

3. Install the chosen crankshaft

main bearing (install the upper
shaft bushing with oil sump on
the cylinder block)

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496

4. Install the crankshaft.
5. Install the crankshaft thrust film

under the bearing #3 of the

cylinder block with the grooves

facing outside.

6. Inspect the crankshaft axial

clearance, to confirm the

crankshaft axial clearance is

acceptable. Refer to 2.6.1.2

Mechanical

System

Specification.

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7. Apply a small amount of engine

oil to the crankshaft bearing cap.

8. Install the crankshaft main

bearing (lower) to the crankshaft

bearing cap.

9. Install the crankshaft bearing cap.

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10. Tighten the crankshaft bearing

cap retaining bolts according to

the sequence shown in the graph.

During the assembly of the cylinder

components and the main bearing cap,

the main bearing cap bolts should be

tightened in three steps with the first

tightened torque of (20±2) N·m, the

second tightened torque of (40±2)

N·m and the third tightened torque of

(60±3) N·m.
11. Install the mounting bolts of oil

filter.

12. Install the crankshaft damping

belt plate.

13. Install pistons, connecting rods

and bearings.

14. Install the oil pan.

7

8

3

4

1

2

5

6

9

10

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497

Torque: 20N.m or 14.8lb-ft

15. Install the oil pan.

16. Install the cylinder hood.

17. Install the crankshaft rear oil

seal.

18. Install the flywheel.

19. Install the gearbox.

20. Install the engine assembly.

498