FixVault

Exhaust System Removal/Installation: Notes

WARNING:
  • A hot engine and exhaust system can cause severe burns. Turn off the engine and wait until they are cool before removing the exhaust system.
  1. Disconnect the negative battery terminal. (See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION .)
  2. Remove in the order indicated in the table.
  3. Remove the insulator. (See EXHAUST SYSTEM INSULATOR REMOVAL/INSTALLATION .)
  4. Install in the reverse order of removal.

Step 1 

Fig 1: Exhaust System Components With Torque Specification (Step 1)
G13721513Courtesy of MAZDA MOTORS CORP.
PART DESCRIPTION

1 Main silencer
2 Insulator
(See INSULATOR INSTALLATION NOTE .)
3 Brace bar
(See BRACE BAR REMOVAL NOTE .)
(See BRACE BAR INSTALLATION NOTE .)
4 HO2S
(See HEATED OXYGEN SENSOR (HO2S) REMOVAL/INSTALLATION .)
5 Tunnel member
(See TUNNEL MEMBER INSTALLATION NOTE .)
6 Wiring harness
7 TWC

Step 2 

Fig 2: Exhaust System Components With Torque Specification (Step 2)
G13721514Courtesy of MAZDA MOTORS CORP.
PART DESCRIPTION

1 A/F sensor
(See AIR FUEL RATIO (A/F) SENSOR REMOVAL/INSTALLATION .)
2 Clip
3 Insulator
4 Exhaust manifold insulator
(See EXHAUST MANIFOLD INSULATOR REMOVAL NOTE .)
(See EXHAUST MANIFOLD INSULATOR INSTALLATION NOTE .)
5 Exhaust manifold (WU-TWC)
(See EXHAUST MANIFOLD REMOVAL NOTE .)
(See EXHAUST MANIFOLD INSTALLATION NOTE .)
6 Exhaust manifold gasket