IS 250C V6-2.5L (4GR-FSE) (2011)
Exhaust Manifold: Service and Repair
Installation
4GR-FSE INTAKE / EXHAUST: EXHAUST MANIFOLD: INSTALLATION
1. INSTALL AIR FUEL RATIO SENSOR (for Bank 2 Sensor 1) See: Powertrain Management/Computers and Control Systems/Oxygen
Sensor/Service and Repair/Air Fuel Ratio Sensor/Installation
2. INSTALL EXHAUST MANIFOLD SUB-ASSEMBLY LH
(a) Install a new gasket as shown in the illustration.
(b) Install the exhaust manifold sub-assembly LH with 6 new nuts.
LH
Torque : 21 Nm (214 kgf-cm, 15 ft-lbf)
NOTICE:
*
Do not damage the stud bolts when installing the exhaust manifold.
*
Be sure to tighten either of nuts A first as show in the illustration.
(c) Connect the air fuel ratio sensor connector (for Bank 2 Sensor 1).
3. INSTALL NO. 3 ENGINE ROOM RELAY BLOCK
(a) Install the No. 3 engine room relay block with the bolt and nut.
Torque : 8.0 Nm (82 kgf-cm, 71 in-lbf)
(b) Install the earth wire with the 2 bolts.
Bolt A - Torque : 10 Nm (102 kgf-cm, 7 ft-lbf)
Bolt B - Torque : 13 Nm (133 kgf-cm, 10 ft-lbf)
4. INSTALL EXHAUST MANIFOLD SUB-ASSEMBLY RH