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Home >> Lexus >> 2014 >> IS 350 Base, AWD >> Repair and Diagnosis >> Engine Mechanical >> Mechanical >> Engine Intake / Exhaust System (2GR-FSE) - Service Information >> Exhaust Manifold >> Installation [04/2013 - 10/2016] >> Procedure

Installation [04/2013 - 10/2016]: Procedure

  1. INSTALL EXHAUST MANIFOLD SUB-ASSEMBLY LH (TWC: Front Catalyst) 
    1. Set a new gasket to the cylinder head sub-assembly.
      GTY461349Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Protrusion
      Front

      HINT: 

      Orient the protrusion of the gasket as shown in the illustration.

    2. Temporarily install the exhaust manifold sub-assembly LH (TWC: Front Catalyst) with 6 new nuts.
      GTY468771Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Nut A
      *b Nut B
      Front
    3. Using a 12 mm deep socket wrench, tighten the 6 nuts.

      Torque: 21 N*m (214 kgf*cm, 15 ft.*lbf) 

      NOTE:
      • Be sure to tighten either the nut (A) or (B) shown in the illustration first.
      • Do not damage the stud bolts when installing the exhaust manifold sub-assembly LH (TWC: Front Catalyst).
  2. INSTALL EXHAUST MANIFOLD SUB-ASSEMBLY RH (TWC: Front Catalyst) 
    1. Set a new gasket to the cylinder head sub-assembly.
      GTY458161Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Protrusion
      Front

      HINT: 

      Orient the protrusion of the gasket as shown in the illustration.

    2. Temporarily install the exhaust manifold sub-assembly RH (TWC: Front Catalyst) with 6 new nuts.
      GTY458573Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Nut A
      *b Nut B
      Front
    3. Using a 12 mm deep socket wrench, tighten the 6 nuts.

      Torque: 21 N*m (214 kgf*cm, 15 ft.*lbf) 

      NOTE:
      • Be sure to tighten either the nut (A) or (B) shown in the illustration first.
      • Do not damage the stud bolts when installing the exhaust manifold sub-assembly RH (TWC: Front Catalyst).
  3. INSTALL NO. 2 ENGINE OIL LEVEL DIPSTICK GUIDE 
    1. Install a new O-ring to the No. 2 engine oil level dipstick guide.

      HINT: 

      Apply a light coat of engine oil to the O-ring.

    2. Install the No. 2 engine oil level dipstick guide to the cylinder block with the bolt.

      Torque: 21 N*m (214 kgf*cm, 15 ft.*lbf) 

    3. Install the engine oil level dipstick.
  4. INSTALL FRONT PROPELLER SHAFT ASSEMBLY (for AWD) 

    Refer to PROCEDURE - Step 1 [04/2013 - 08/2015] , or refer to PROCEDURE - Step 1 [08/2015 - ]

  5. INSTALL NO. 1 EXHAUST PIPE SUPPORT BRACKET SUB-ASSEMBLY 
    1. Install the No. 1 exhaust pipe support bracket sub-assembly to the automatic transmission with transfer assembly with the 2 bolts.

      Torque: 43 N*m (438 kgf*cm, 32 ft.*lbf) 

  6. INSTALL FRONT EXHAUST PIPE ASSEMBLY (TWC: Rear Catalyst) 

    See step  4

  7. CONNECT HEATED OXYGEN SENSOR 

    Refer to INSTALLATION [04/2013 - 10/2017]

  8. INSTALL FRONT CENTER FLOOR BRACE 

    See step  6

  9. INSTALL REAR NO. 2 FLOOR BOARD SUB-ASSEMBLY (for Full Cover Type) 

    Refer to PROCEDURE - Step 77 [04/2013 - 08/2015] , or refer to PROCEDURE - Step 78 [08/2015 - 10/2016]

  10. INSTALL REAR NO. 1 FLOOR BOARD SUB-ASSEMBLY (for Full Cover Type) 

    Refer to PROCEDURE - Step 78 [04/2013 - 08/2015] , or refer to PROCEDURE - Step 79 [08/2015 - 10/2016]

  11. INSTALL NO. 2 ENGINE UNDER COVER (w/ No. 2 Engine Under Cover) 

    Refer to PROCEDURE - Step 100 [04/2013 - 08/2015] , or refer to PROCEDURE - Step 101 [08/2015 - 10/2016]

  12. INSTALL FRONT SUSPENSION MEMBER BRACE (for 2WD) 

    Refer to PROCEDURE - Step 101 [04/2013 - 08/2015] , or refer to PROCEDURE - Step 102 [08/2015 - 10/2016]

  13. INSTALL AIR FUEL RATIO SENSOR 

    Refer to INSTALLATION [04/2013 - 10/2017]

  14. INSPECT FOR EXHAUST GAS LEAK 

    See step  9

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