Installation [11/2016 - ]: Procedure

Refer to PROCEDURE - Step 1

1. Install a new gasket to the front exhaust pipe assembly.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   	Bolt
   	Nut

2. Install the front exhaust pipe assembly to the exhaust manifold assembly LH (TWC: Front Catalyst) with 2 new nuts.

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

3. Install the exhaust pipe support bracket to the front exhaust pipe assembly with the 2 bolts (B).

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

4. Tighten the bolt (A).

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

5. Connect the heated oxygen sensor connector.
6. Engage the wire harness clamp.

1. Install 2 new gaskets to the front No. 3 exhaust pipe sub-assembly.
2. Install the front No. 3 exhaust pipe sub-assembly to the front exhaust pipe assembly and exhaust manifold (TWC: Front Catalyst) with 2 new bolts and 2 new nuts.

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

Refer to PROCEDURE - Step 5

1. Using a vernier caliper, measure the free length of the compression springs.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   Standard Length	43.0 mm (1.69 in.)
   Minimum Free Length	41.5 mm (1.63 in.)

   If the free length is less than the minimum, replace the compression spring.

2. Temporarily install a new gasket to the front No. 3 exhaust pipe sub-assembly.
3. Using a plastic hammer and wooden block, tap in the gasket until its surface is flush with the front No. 3 exhaust pipe sub-assembly.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   *1	Front No. 3 Exhaust Pipe Sub-assembly
   *2	Gasket
   *a	Wooden Block

   NOTE:

   • Be careful with the installation direction of the gasket.
   • Do not reuse the gasket.
   • Do not damage the gasket.
   • Do not push in the gasket by using the exhaust pipes when connecting them.
4. Connect the center exhaust pipe assembly (TWC: Rear Catalyst) to the 5 exhaust pipe supports.
5. Install the center exhaust pipe assembly (TWC: Rear Catalyst) to the front No. 3 exhaust pipe sub-assembly with the 2 bolts and 2 compression springs.

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

   HINT: 

   After installation, check that the space between the flanges of the center exhaust pipe assembly (TWC: Rear Catalyst) and front No. 3 exhaust pipe sub-assembly is consistent front-to-rear and left-to-right.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   *1	Center Exhaust Pipe Assembly (TWC: Rear Catalyst)
   *2	Front No. 3 Exhaust Pipe Sub-assembly
   *3	Gasket
   *a	Space between Flanges: 8.5 mm (0.335 in.)

6. Connect the 2 heater water hoses to the center exhaust pipe assembly (TWC: Rear Catalyst) and 2 clips secure them.

1. Install the heater cover to the water hose bracket and vehicle body with the 3 bolts.

   Torque: 9.8 N*m (100 kgf*cm, 87 in.*lbf) 

2. Engage the clamp.

1. Using a vernier caliper, measure the free length of the compression springs.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   Standard Length	43.0 mm (1.69 in.)
   Minimum Free Length	41.5 mm (1.63 in.)

   If the free length is less than the minimum, replace the compression spring.

2. Temporarily install a new gasket to the center exhaust pipe assembly (TWC: Rear Catalyst).
3. Using a plastic hammer and wooden block, tap in the gasket until its surface is flush with the center exhaust pipe assembly (TWC: Rear Catalyst).

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   *1	Center Exhaust Pipe Assembly (TWC: Rear Catalyst)
   *2	Gasket
   *a	Wooden Block

   NOTE:

   • Be careful with the installation direction of the gasket.
   • Do not reuse the gasket.
   • Do not damage the gasket.
   • Do not push in the gasket by using the exhaust pipes when connecting them.
4. Connect the tail exhaust pipe assembly to the exhaust pipe support.
5. Install the tail exhaust pipe assembly to the center exhaust pipe assembly (TWC: Rear Catalyst) with the 2 bolts and 2 compression springs.

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

   HINT: 

   After installation, check that the space between the flanges of the tail exhaust pipe assembly and center exhaust pipe assembly (TWC: Rear Catalyst) is consistent front-to-rear and left-to-right.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   *1	Tail Exhaust Pipe Assembly
   *2	Center Exhaust Pipe Assembly (TWC: Rear Catalyst)
   *3	Gasket
   *a	Space between Flanges: 8.5 mm (0.335 in.)

Refer to PROCEDURE - Step 2

Refer to PROCEDURE - Step 3

If gas is leaking, tighten the areas necessary to stop the leak. Replace damaged parts as necessary.

1. Perform Inspection After Repair after repairing an exhaust gas leak.

   Refer to INITIALIZATION [11/2016 - ]

See step  26

Refer to PROCEDURE - Step 83

Refer to PROCEDURE - Step 84

Refer to PROCEDURE - Step 74