Geely Emgrand X7. Manual part — 132

2. Clean the cylinder head cover

and the exhaust manifold mating
face.

3. Install the exhaust manifold, and

tighten the mounting nuts
according to the sequence in the
graph.

3

5

2

1

4

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4.

Install three-way catalytic
converter heat shield and tighten
the fixing bolts.

Torque :11-13 N . m(Metric) . 8 .
1-9 . 6 lb-ft(English system)

5. Install the exhaust manifold

lower heat shield and tighten the
fixing bolts.

Torque :11-13 N . m(Metric) . 8 .
1-9 . 6 lb-ft(English system)

6. Install the exhaust manifold

upper heat shield and tighten the
fixing bolts.

Torque :11-13 N . m(Metric) . 8 .
1-9 . 6 lb-ft(English system)

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7. Install the right supporting plate for the exhaust manifold and tighten the fixing bolt.

Torque :40-48 N . m(Metric) . 29 . 5-35. 4 lb-ft(English system)

8. Install the left and right exhaust manifold supporting plates and tighten the fixing bolts.

Torque :40-48 N . m(Metric) . 29 . 5-35. 4 lb-ft(English system)

9. Connect battery negative cable.

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2.7.6.2 Replacement of Front Exhaust Pipe Assembly

Dismantlement Procedure

1. Disconnect the battery negative electrode cable. Refer to 2.12.6.1 Battery Disconnection.

2. Disconnect the rear oxygen sensor harness connector.

Note: Pull out the red plug to disconnect the harness connector.

3. Lift

the

vehicle, refer to 1.3.1.1

Lifting and Raising the Vehicle.

Warning: Refer to Warning on
Vehicle Lifting and Jacking in
Warnings and Precautions.

4. Dismantle left right fixing nut of

front air exhaust pipe assembly .

Note: Dismantling the bolt when it is
hot is likely to damage the bolt or
flange nuts weld on the exhaust
manifold. Dismantle the bolt when
the engine is cooled down.

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5. Dismantle the three-way catalytic

converter exhaust pipe
connecting nuts.

Note: Do not drop the front exhaust
pipe assembly during the removal.

Remove the front exhaust pipe
assembly and the exhaust pipe gasket.

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528

Installation Procedure:

1. Install a new exhaust pipe gasket

at the exhaust manifold adaptor
and the three-way catalytic
converter assembly.

2. Install left and right fixing nut of

front exhaust air pipe assembly.

Torque :35-45N . m(Metric) . 25.
8-33 . 2lb-ft(English system)

Note: Before installation, clean the
exhaust pipe gaskets and interface.

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3. Install the three-way catalytic

converter right and left retaining
nuts.

Torque :47-57N . m(Metric) . 34 .
8-42. 2lb-ft(English system)

4. Install fixing rubber support

assembly of catalyst, and tighten
left and right fixing bolts.

Nut

Torque :16-24N . m(Metric) . 11 .
8-17. 7(English system)

5. Lower the vehicle from the lifter.

6. Connect the rear oxygen sensor

wiring harness connector.

7. Connect

battery

negative

cable.

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2.7.6.3 Replacement of Three-way Catalytic Converter

Dismantlement Procedure

1. Lift

the

vehicle, refer to 1.3.1.1

Lifting and Raising the Vehicle.

Warning: Refer to Warning on
Vehicle Lifting and Jacking in
Warnings and Precautions.

2. Dismantle the three-way catalytic

converter left and right retaining
nuts.

For the three-way catalytic converter
has a high operating temperature
(500~850 ), it is important to wait it

℃

cooling down before dismantlement!

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3. Dismantle the left and right

retaining nuts of the middle
muffler assembly.

For the three-way catalytic converter
has a high operating temperature
(500~850 ), it is impo

℃

rtant to wait it

cooling down before dismantlement!
During removal, pay attention to the
three-way catalytic converter
assembly to avoid dropping!

4. Remove the three-way catalytic

converter assembly and the
exhaust pipe gaskets.

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Installation Procedure:

1. Install a new exhaust pipe gasket at each end of the three-way catalytic converter assembly.

Note: Before installation, clean the exhaust pipe gaskets and interface.

2. Install the three-way catalytic converter right and left retaining nuts.

Torque :47-57N . m(Metric) . 34 . 8-42 . 2lb-ft(English system)

3. Install the left and right retaining nuts of the middle muffler.

Torque :47-57N . m(Metric) . 34 . 8-42 . 2lb-ft(English system)

4. Lower the vehicle from the lifter.

530