Geely Emgrand X7. Manual part — 258

10. Use wooden handle to push out

cylinder 4 piston connecting rod
assemblies, and mark the position
of cylinder 4 on piston and
connecting rod assemblies.

FE02-0227b

11. Rotate crankshaft to180?, make

2-3 cylinders on lower stop point
position, and then dismantle bolt
of connecting rod bearing cover
of cylinder 2.

FE02-0228b

12. Hold the connecting rod bolts

and take out the Cylinder 2
connecting rode bearing cap and
mark the Cylinder 2 position on
the bearing cap.

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13. Use wooden handle to push out

piston connecting rod
components of cylinder 2, and
mark the position of cylinder 2
on piston and connecting rod
components.

FE02-0230b

14. Remove the bolt for the #3

cylinder connecting rod bearing
cover.

FE02-0231b

15. Hold the connecting rod bolts

and take out the Cylinder 3
connecting rode bearing cap and
mark the Cylinder 3 position on
the bearing cap.

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16. Use wooden handle to push out

piston connecting rod
components of cylinder 3, and
mark the position of cylinder 3
on piston and connecting rod
components.

FE02-0233b

Carry out the following inspection
procedures prior to the installation
of the piston.

1. Inspect whether the rod is bent or

distorted. If the rod is bent or
distorted, replace the connecting
rod.

Cross degree: 0.03/100 (metric)
0.001/3.9 (Inch)

Twisted Degree: 0.05/100 (Metric)
0.002/3.9 (English system)

2. Inspect the connecting rod

bearings.

3. Inspect whether the bottom rod is

worn.

4. Inspect whether the connecting

rod upper end is scratched.

5. Inspect whether there is the

crankshaft connecting rod
bearing journal wear and tear.

6. Inspect whether the piston is

scratched, cracked and worn.

7. Inspect the piston and piston pin

mating.

Standard value: 0 . 005-(-0 .
001mm)(Metric)

0.0002-(-0.00004in)(English system)

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8. Inspect piston pin and connecting

rod clearance.

Standard value :0 . 005 ～ 0 .
011mm(Metric)

0.0002～0.0004in (English system)

9. Check the fitting clearance

between the piston pin and piston
pin hole.

Standard Value

(-0.001)-0.005 mm (Metric)
(-0.00003)-0.0002 in (English
system)

10. Inspect whether the engine block

cylinder bore is worn, runout and
taper.

11. Inspect whether the engine block

cylinder bore is polished, if
necessary, slightly polish the
cylinder bore.

FE02-0235b

12. With a ruler and gap regulator,

inspect the engine block top
surface flatness.

Standard value :0 . 05mm(Metric)
0 . 002in(English system)

13. Select a new set of piston rings,

use a gap regulator to measure
piston ring end gap.

Oil ring end gap:0,20

～

0,70mm(Metric)/0,0079

～

0,0276in(English system)

The second compression ring end gap:
0.40-0.55mm (Metric)/
0.0157-0.0217in (English system)

The first compression ring end gap:
0.25-0.35mm
(Metric)/0.0098-0.0138in (English
system)

14. Inspect the connecting rod

bearings gap.

Standard velue ： 0.020 ～ 0.044
mm(Metric)/0.0007 ～ 0.0017 in
（

English system）

15. Inspect the connecting rod

bearing clearance.

FE02-0236b

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