EXHAUST MANIFOLD REMOVAL

PROCEDURE


  1. REMOVE NO. 1 ENGINE UNDER COVER

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  2. REMOVE NO. 2 ENGINE UNDER COVER

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  3. REMOVE FRONT FLOOR COVER LH


    1. A0027OWC01
      B003ZIE Bolt
      B003Z8F Screw

      Remove the clip (A), 2 screws and 4 bolts from the front floor cover LH.

    2. Disconnect the 2 clips (B) to remove the front floor cover LH.

  4. REMOVE FRONT NO. 3 EXHAUST PIPE SUB-ASSEMBLY


    1. A0029V5

      Disengage the 3 wire harness clamps.

    2. Disconnect the heated oxygen sensor (for Bank 1) connector.

    3. A00297UC01
      B003ZIE Bolt
      B003Z8F Nut

      Remove the 4 bolts, 2 nuts, 2 compression springs and front No. 3 exhaust pipe sub-assembly from the front exhaust pipe assembly and center exhaust pipe assembly (TWC: Rear Catalyst).

    4. Remove the 3 gaskets from the front No. 3 exhaust pipe sub-assembly, front exhaust pipe assembly and center exhaust pipe assembly (TWC: Rear Catalyst).

  5. REMOVE MANIFOLD STAY


    1. A00280QC01
      B003ZIE Bolt
      B003Z8F Nut

      Remove the bolt and nut to remove the manifold stay from the exhaust manifold (TWC: Front Catalyst) and rear engine mounting bracket.

  6. REMOVE EXHAUST MANIFOLD (TWC: Front Catalyst)


    1. A00279S

      Disconnect the air fuel ratio sensor connector.

    2. Disengage the 3 wire harness clamps.

    3. A002BC7

      Using a 12 mm deep socket wrench, remove the 4 nuts and exhaust manifold (TWC: Front Catalyst) from the cylinder head sub-assembly RH.

  7. REMOVE EXHAUST MANIFOLD TO HEAD GASKET (for Bank 1)


    1. A00277L

      Remove the exhaust manifold to head gasket (for Bank 1) from the cylinder head sub-assembly RH.

  8. REMOVE AIR FUEL RATIO SENSOR (for Bank 1)

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  9. REMOVE NO. 1 EXHAUST PIPE SUPPORT BRACKET (for Lower Side)

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  10. REMOVE FRONT EXHAUST PIPE ASSEMBLY

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  11. REMOVE V-BANK COVER SUB-ASSEMBLY

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  12. REMOVE AIR FUEL RATIO SENSOR (for Bank 2)

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  13. REMOVE NO. 2 EXHAUST MANIFOLD HEAT INSULATOR


    1. A002823

      Remove the 3 bolts and No. 2 exhaust manifold heat insulator from the exhaust manifold assembly LH (TWC: Front Catalyst).

  14. REMOVE NO. 2 MANIFOLD STAY


    1. A0029F9C01
      B003ZIE Bolt
      B003Z8F Nut

      Remove the bolt, nut and No. 2 manifold stay from the exhaust manifold assembly LH (TWC: Front Catalyst) and cylinder block sub-assembly.

  15. REMOVE EXHAUST MANIFOLD ASSEMBLY LH (TWC: Front Catalyst)


    1. A002BF4

      Using a 12 mm deep socket wrench, remove the 4 nuts and exhaust manifold assembly LH (TWC: Front Catalyst).

  16. REMOVE EXHAUST MANIFOLD TO HEAD GASKET (for Bank 2)


    1. A0027EV

      Remove the exhaust manifold to head gasket (for Bank 2) from the cylinder head sub-assembly.

  17. REMOVE STUD BOLT

    Tech Tips

    If a stud bolt is deformed or its threads are damaged, replace it.


    1. A0029ZL

      Using an E8 "TORX" socket wrench, remove the 2 stud bolts from the exhaust manifold (TWC: Front Catalyst).

    2. A002AW8

      Using an E8 "TORX" socket wrench, remove the 2 stud bolts from the exhaust manifold assembly LH (TWC: Front Catalyst).