PROCEDURE
INSTALL NO. 2 EXHAUST MANIFOLD HEAT INSULATOR
Install the No. 2 exhaust manifold heat insulator to the exhaust manifold (TWC: Front Catalyst) with the 6 bolts.
INSTALL EXHAUST MANIFOLD (TWC: Front Catalyst)
Install a new exhaust manifold to head gasket to the cylinder head sub-assembly.
Temporarily install the exhaust manifold (TWC: Front Catalyst), No. 1 upper front floor heat insulator and No. 1 exhaust manifold heat insulator.
Tech Tips
At this time, do not install the parts with bolts or nuts.
Using a 12 mm deep socket wrench, temporarily install the exhaust manifold (TWC: Front Catalyst) to the cylinder head sub-assembly with 7 new nuts.
Using the 12 mm deep socket wrench, tighten the 7 nuts in the order shown in the illustration.
INSTALL MANIFOLD STAY
Temporarily install the manifold stay to the exhaust manifold (TWC: Front Catalyst) and cylinder block sub-assembly with the bolt and nut.
Tighten the bolt and nut in the order shown in the illustration.
INSTALL NO. 1 EXHAUST MANIFOLD HEAT INSULATOR
| *a | Torque Wrench Fulcrum Length |
Using a 10 mm union nut wrench, install the No. 1 exhaust manifold heat insulator to the exhaust manifold (TWC: Front Catalyst) with the 5 bolts.
Tech Tips
Calculate the torque wrench reading when changing the fulcrum length of the torque wrench.
When using a 10 mm union nut wrench (fulcrum length of 22 mm (0.866 in.)) + torque wrench (fulcrum length of 162 mm (6.38 in.)): 8.8 N*m (90 kgf*cm, 78 in.*lbf)
INSTALL NO. 1 UPPER FRONT FLOOR HEAT INSULATOR
| *a | Torque Wrench Fulcrum Length |
Using a 10 mm union nut wrench, install the No. 1 upper front floor heat insulator to the vehicle body with the 2 nuts.
Tech Tips
Calculate the torque wrench reading when changing the fulcrum length of the torque wrench.
When using a 10 mm union nut wrench (fulcrum length of 22 mm (0.866 in.)) + torque wrench (fulcrum length of 162 mm (6.38 in.)): 4.3 N*m (44 kgf*cm, 38 in.*lbf)
INSTALL WIRE HARNESS CLAMP BRACKET
Install the wire harness clamp bracket with the bolt.
INSTALL AIR FUEL RATIO SENSOR (for Sensor 1)
INSTALL FRONT CENTER UPPER SUSPENSION BRACE SUB-ASSEMBLY
INSTALL COWL TOP VENTILATOR LOUVER SUB-ASSEMBLY
INSTALL FRONT LOWER NO. 1 FLOOR HEAT INSULATOR
INSTALL FRONT EXHAUST PIPE ASSEMBLY (TWC: Rear Catalyst)
Install 2 new gaskets to the front exhaust pipe assembly (TWC: Rear Catalyst).
Connect the front exhaust pipe assembly (TWC: Rear Catalyst) to the 2 exhaust pipe supports.
Install the front exhaust pipe assembly (TWC: Rear Catalyst) to the exhaust manifold (TWC: Front Catalyst) and center exhaust pipe assembly with 2 new bolts and 2 new nuts.
Connect the air fuel ratio sensor (for sensor 2) connector.
Engage the wire harness clamp.
INSTALL CENTER FLOOR CROSSMEMBER BRACE
INSTALL FRONT CENTER FLOOR BRACE
INSTALL FRONT FLOOR COVER LH
INSTALL FRONT FLOOR COVER RH
INSPECT FOR EXHAUST GAS LEAK
INSTALL NO. 2 ENGINE UNDER COVER ASSEMBLY
INSTALL NO. 1 ENGINE UNDER COVER
INSTALL FRONT WHEEL OPENING EXTENSION PAD LH
INSTALL FRONT WHEEL OPENING EXTENSION PAD RH