Installation [10/2018 - ]: Procedure

Refer to INSTALLATION [10/2018 - ]

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 exhaust pipe gasket to the exhaust manifold (TWC: Front Catalyst).
3. Using a plastic hammer and wooden block, tap in the exhaust pipe gasket until its surface is flush with the exhaust manifold (TWC: Front Catalyst).

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   *1	Exhaust Manifold (TWC: Front Catalyst)
   *2	Exhaust Pipe Gasket
   *a	Wooden Block

   NOTE:

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

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

   HINT: 

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

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

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

6. Engage the clamp.
7. Connect the No. 2 air fuel ratio sensor connector.

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

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   Standard Length	40 mm (1.57 in.)
   Minimum Free Length	38.5 mm (1.52 in.)

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

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

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

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

   NOTE:

   • Be careful with the installation direction of the exhaust pipe gasket.
   • Do not reuse the exhaust pipe gasket.
   • Do not damage the exhaust pipe gasket.
   • Do not push in the exhaust pipe gasket by using the exhaust pipes when connecting them.
4. Connect the tail exhaust pipe assembly to the 4 exhaust pipe supports.
5. Install the tail exhaust pipe assembly to the front 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 front exhaust pipe assembly (TWC: Rear Catalyst) is consistent front-to-rear and left-to-right.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   *1	Front Exhaust Pipe Assembly (TWC: Rear Catalyst)
   *2	Tail Exhaust Pipe Assembly
   *3	Exhaust Pipe Gasket
   *a	Space between Flanges: 6.5 mm (0.256 in.)

1. Install the 3 front floor center braces to the vehicle body with the 12 bolts.

   Torque: 29 N.m (296 kgf/cm, 21 ft.lbf) 

1. Engage the 6 clamps to install the front floor cover LH to the vehicle body with the 2 bolts and 3 clips.

   Torque: 7.5 N.m (76 kgf/cm, 66 in.lbf) 

HINT: 

Use the same procedure as for the LH side.

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

HINT: 

Perform "Inspection After Repairs" after repairing or replacing the exhaust system.

Refer to INITIALIZATION [10/2018 - 08/2021] , or refer to INITIALIZATION [08/2021 - ]