Subaru BRZ 2013 · Service Manual Engine/hybrid system

Exhaust manifold (FA20)

Components Removal / installation

INTAKE / EXHAUST
EXHAUST MANIFOLD (FA20)
EXPLODED VIEW
REMOVAL
1. Removal of air / fuel ratio sensor
(Refer to )
2. Removal of oxygen sensor
(Refer to )
3. Removal of under cover COMPL T/M (Refer to )
4. Removal of exhaust pipe ASSY FR (Refer to )
5. Exhaust manifold removal
(1) Remove the two nuts and remove the exhaust pipe SUB-ASSY FR.
(2) Remove the gasket.
(3) Remove the six nuts and remove the exhaust manifold.
(4) Remove the two gaskets.
INSTALLATION
1. Exhaust manifold installation
(1) Install two new gaskets.
(2) Install the exhaust manifold with the six nuts.

Standard value:
Tightening torque=30N·m { 306kgf·cm} {22.1ft·lbf}
(3) Install a new gasket to the exhaust pipe SUB-ASSY FR installation portion of exhaust manifold.
(4) Install the exhaust pipe SUB-ASSY FR with the two nuts.

Standard value:
Tightening torque=35N·m { 357kgf·cm} {25.8ft·lbf}
2. Installation of exhaust pipe ASSY FR (Refer to )
3. Installation of under cover COMPL T/M (Refer to )
4. Oxygen sensor installation
(Refer to )
5. Installation of air / fuel ratio sensor
(Refer to )
6. Exhaust gas leakage check
(1) Make sure that there is no exhaust gas leakage from the connections of exhaust pipes and the mounting portion of each sensor.