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How to Replace Exhaust Manifold on Ford Edge and Lincoln MKX?


The procedure is similar for both ford and Lincoln car models:-----

The details to replace Exhaust Manifold is as follows: -------

Exhaust Manifold
REMOVAL & INSTALLATION:---------

Left Side
Specific to:
Ford Edge 2008-2009
Lincoln MKX 2008-2009
  1. Remove the LH catalytic converter, as follows:
    1. Raise and safely support the vehicle.
    2. Disconnect the catalyst monitor sensor electrical connector.
    3. Remove the exhaust Y-pipe.
    4. Remove the 2 catalytic converter support bracket-to-transmission bolts.
    5. Remove the 4 nuts and the LH catalytic converter.
    6. Discard the 4 LH catalytic converter nuts and gasket.
  2. Remove the LH Heated Oxygen Sensor (HO2S).
  3. Remove the 3 bolts and the LH exhaust manifold heat shield.
  4. Remove the 6 nuts and the LH exhaust manifold. Discard the nuts and gasket.
  5. Clean and inspect the LH exhaust manifold.
  6. Remove and discard the 6 LH exhaust manifold studs.
    WARNING
    Do not use metal scrapers, wire brushes, power abrasive discs or other abrasive means to clean the sealing surfaces. These may cause scratches and gouges resulting in leak paths. Use a plastic scraper to clean the sealing surfaces.
  7. Clean the exhaust manifold mating surface of the cylinder head with metal surface prep. Follow the directions on the packaging. 

    image
    Fig. Exploded view of the left side exhaust manifold and related components

To install:
  1. Install 6 new LH exhaust manifold studs and tighten to 9 ft. lbs. (12 Nm).
    NOTE
    Failure to tighten the exhaust manifold nuts to specification a second time will cause the exhaust manifold to develop an exhaust leak.
  2. Using a new gasket, install the LH exhaust manifold and 6 new nuts. Tighten in the sequence shown to 15 ft. lbs. (20 Nm). Then tighten to 18 ft. lbs. (25 Nm).

    Click image to see an enlarged view
    Fig. Exhaust manifold tightening sequence-left side
  3. Install the LH exhaust manifold heat shield and the 3 bolts and tighten to 89 inch lbs. (10 Nm).
  4. Install the LH HO2S.
    NOTE
    When installing the catalytic converter, always install new fasteners and gaskets. Clean the flange faces prior to new gasket installation to ensure proper sealing.
  5. Install the LH catalytic converter, with new gaskets and nuts, in the reverse of the removal procedure. Tighten the retainers as follows:
    1. Catalytic converter nuts: 30 ft. lbs. (40 Nm)
    2. Catalytic converter support bracket-to-transmission bolts: 35 ft. lbs. (48 Nm).

Right Side
Specific to:
Ford Edge 2008-2009
Lincoln MKX 2008-2009
  1. Remove the right side catalytic converter, as follows:
    1. Raise and safely support the vehicle.
    2. Remove the catalyst monitor sensor.
    3. Remove the exhaust Y-pipe.
    4. For All Wheel Drive (AWD) models, Remove and discard the 4 universal joint (U-joint) flange bolts and separate the front driveshaft and secure it with a piece of wire.
    5. For AWD models, remove the RH halfshaft assembly. Remove the 2 catalytic converter support bracket-to-engine block bolts.
    6. For Front Wheel Drive (FWD) models, remove the 2 bolts and the power steering rack shield.
    7. For FWD models, remove the catalytic converter support bracket-to-engine block bolt and nut.
    8. Remove the 2 nuts and the roll restrictor shield.
    9. Remove the roll restrictor bolt and rotate the engine forward.
    10. Remove the 2 bracket-to-RH catalytic converter bolts.
    11. Remove the 4 nuts and the RH catalytic converter.
    12. Discard the 4 RH catalytic converter nuts and gasket.
  2. Disconnect the RH Heated Oxygen Sensor (HO2S) electrical connector.
  3. Remove the 6 nuts and the RH exhaust manifold. Discard the nuts and gasket.
  4. Clean and inspect the RH exhaust manifold.
  5. Remove and discard the 6 RH exhaust manifold studs.
    WARNING
    NEVER use metal scrapers, wire brushes, power abrasive discs or other abrasive means to clean the sealing surfaces. These may cause scratches and gouges resulting in leak paths. Use a plastic scraper to clean the sealing surfaces.
  6. Clean the exhaust manifold mating surface of the cylinder head with metal surface prep. Follow the directions on the packaging.

    Click image to see an enlarged view
    Fig. Exploded view of the right side exhaust manifold and related components
To install:
  1. Install 6 new RH exhaust manifold studs and tighten to 9 ft. lbs. (12 Nm).
    NOTE
    Failure to tighten the exhaust manifold nuts to specification a second time will cause the exhaust manifold to develop an exhaust leak.
  2. Using a new gasket, install the RH exhaust manifold and 6 new nuts. Tighten in the sequence shown to 15 ft. lbs. (20 Nm). Then tighten to 18 ft. lbs. (25 Nm).

    Click image to see an enlarged view
    Fig. Exhaust manifold tightening sequence-right side
  3. Connect the RH HO2S electrical connector.
    NOTE
    When installing the catalytic converter, always install new fasteners and gaskets. Clean the flange faces prior to new gasket installation to ensure proper sealing.
  4. Install the right side catalytic converter, with new gaskets and nuts, in the reverse of the removal procedure. Tighten the retainers as follows:
    1. Catalytic converter nuts: 30 ft. lbs. (40 Nm)
    2. Bracket-to-RH catalytic converter bolts: 15 ft. lbs. (20 Nm)
    3. Roll restrictor bolt: 66 ft. lbs. (90 Nm)
    4. Roll restrictor shield: 8 ft. lbs. (11 Nm)
    5. Catalytic converter support bracket-to-engine block bolt and nut (FWD models): 30 ft. lbs. (40 Nm)
    6. Power steering rack shield (FWD models): 11 ft. lbs. (15 Nm)
    7. Catalytic converter support bracket-to-engine block bolts (AWD models): 30 ft. lbs. (40 Nm)
    8. U-joint flange bolts (AWD models): 52 ft. lbs. (70 Nm)



These details will help.
Thanks.

FOR MORE HELP GO TO: ---

Car repair guide?

http://technoanswers.blogspot.in/2012/03/car-repair-guide.html



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