MONOLITHIC CONVERTER REMOVAL

PROCEDURE

1. REMOVE AIR FUEL RATIO SENSOR

   Click here

2. REMOVE NO. 1 EXHAUST MANIFOLD HEAT INSULATOR

   
   

   1. 

      Remove the 5 bolts and No. 1 exhaust manifold heat insulator from the No. 1 heat insulator bracket and exhaust manifold converter sub-assembly (TWC: Front and Rear Catalyst).

3. REMOVE NO. 4 EXHAUST MANIFOLD HEAT INSULATOR

   
   

   1. 

      Remove the 3 bolts and No. 4 exhaust manifold heat insulator from the exhaust manifold converter sub-assembly (TWC: Front and Rear Catalyst) and turbocharger sub-assembly.

4. REMOVE NO. 2 EXHAUST MANIFOLD HEAT INSULATOR

   
   

   1. 

      Remove the 4 bolts and No. 2 exhaust manifold heat insulator from the exhaust manifold converter sub-assembly (TWC: Front and Rear Catalyst).

5. REMOVE TURBOCHARGER STAY

   
   

   1. 

      Remove the 2 nuts and turbocharger stay from the exhaust manifold converter sub-assembly (TWC: Front and Rear Catalyst) and cylinder head sub-assembly.

6. REMOVE EXHAUST MANIFOLD CONVERTER SUB-ASSEMBLY (TWC: Front and Rear Catalyst)

   
   

   1. 

      While supporting the exhaust manifold converter sub-assembly (TWC: Front and Rear Catalyst) to prevent it from falling, loosen the exhaust pipe clamp and remove the exhaust manifold converter sub-assembly (TWC: Front and Rear Catalyst).

   2. Remove the exhaust pipe clamp from the turbocharger sub-assembly.

   3. Remove the outlet turbine elbow gasket from exhaust manifold converter sub-assembly (TWC: Front and Rear Catalyst).

7. REMOVE STUD BOLT

   Tech Tips

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

   
   

   1. 

      Using an E10 "TORX" socket wrench, remove the stud bolt from the exhaust manifold converter sub-assembly (TWC: Front and Rear Catalyst).