EXHAUST MANIFOLD REMOVAL

CAUTION / NOTICE / HINT

The necessary procedures (adjustment, calibration, initialization or registration) that must be performed after parts are removed and installed, or replaced during exhaust manifold assembly RH (TWC: Front Catalyst) and exhaust manifold assembly LH (TWC: Front Catalyst) removal/installation are shown below.

Necessary Procedures After Parts Removed/Installed/Replaced
Replaced Part or Performed Procedure Necessary Procedure Effect/Inoperative Function when Necessary Procedure not Performed Link

  • Replacement of air fuel ratio sensor

  • Gas leak from exhaust system is repaired

 Inspection After Repair

  • Poor idle, etc.

  • Engine start function, etc.

Click here

CAUTION:


  • B006XAT

    To prevent burns, do not touch the engine, exhaust manifold or other high temperature components while the engine is hot.

  • B00719S

    To prevent burns, do not touch the engine, exhaust pipe or other high temperature components while the engine is hot.

PROCEDURE


  1. REMOVE BODY MOUNTING PLATE

    Click here

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

    Click here

  3. REMOVE FRONT EXHAUST PIPE ASSEMBLY (TWC: Rear Catalyst)


    1. B007104

      Disconnect the 2 heated oxygen sensor connectors.

    2. Disengage the 2 wire harness clamps.

    3. B006WY0

      Remove the 4 bolts, 4 nuts and disconnect the front exhaust pipe assembly (TWC: Rear Catalyst).

    4. Remove the front exhaust pipe assembly (TWC: Rear Catalyst) from the exhaust pipe support.

    5. Remove the 3 gaskets from the front exhaust pipe assembly (TWC: Rear Catalyst).

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

    Click here

  5. REMOVE NO. 1 EXHAUST MANIFOLD HEAT INSULATOR


    1. B006X2Y

      Remove the 3 bolts and No. 1 exhaust manifold heat insulator from the exhaust manifold assembly RH (TWC: Front Catalyst).

  6. REMOVE EXHAUST MANIFOLD ASSEMBLY RH (TWC: Front Catalyst)


    1. B006Y3W

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

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


    1. B006WZB

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

  8. REMOVE FRONT WHEEL OPENING EXTENSION PAD LH

    Click here

  9. REMOVE FRONT WHEEL OPENING EXTENSION PAD RH

    Click here

  10. REMOVE NO. 1 ENGINE UNDER COVER

    Click here

  11. REMOVE V-BANK COVER SUB-ASSEMBLY

    Click here

  12. REMOVE COOL AIR INTAKE DUCT SEAL

    Click here

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

    Click here

  14. REMOVE ENGINE OIL LEVEL DIPSTICK GUIDE

    Click here

  15. REMOVE NO. 2 EXHAUST MANIFOLD HEAT INSULATOR


    1. B006XEG

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

  16. REMOVE NO. 2 MANIFOLD STAY


    1. B006ZBCC01
      B006Z38 Bolt
      B006ZY0 Nut

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

  17. DISCONNECT NO. 5 WATER BY-PASS HOSE


    1. B006ZZG

      Disengage the 2 clamps to disconnect the No. 5 water by-pass hose and No. 6 water by-pass hose from the hose clamp.

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


    1. B006ZO2

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

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


    1. B0071VH

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

  20. REMOVE STUD BOLT

    Tech Tips

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


    1. B0070O1

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