Removal [08/2015 - ]: Procedure

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REMOVE AIR FUEL RATIO SENSOR
Refer to REMOVAL [08/2015 - ]

REMOVE NO. 1 EXHAUST MANIFOLD HEAT INSULATOR

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).

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

REMOVE NO. 4 EXHAUST MANIFOLD HEAT INSULATOR

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.

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

REMOVE NO. 2 EXHAUST MANIFOLD HEAT INSULATOR

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

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

REMOVE TURBOCHARGER STAY

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

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

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

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).

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

REMOVE STUD BOLT

HINT:

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

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