Last Modified: 01-30-2024 |
6.11:8.1.0 |
Doc ID: RM100000001QPX1 |
Model Year Start: 2021 |
Model: RAV4 HV |
Prod Date Range: [08/2020 -
] |
Title: A25A-FXS (INTAKE / EXHAUST): EXHAUST MANIFOLD: INSTALLATION; 2021 - 2024 MY RAV4 HV [08/2020 - ] |
INSTALLATION
PROCEDURE
1. INSTALL NO. 2 EXHAUST MANIFOLD HEAT INSULATOR
(a) for Type A:
Install the No. 2 exhaust manifold heat insulator to the exhaust manifold with the 3 bolts.
Torque:
11 N·m {112 kgf·cm, 8 ft·lbf}
(b) for Type B:
Install the No. 2 exhaust manifold heat insulator to the exhaust manifold with the 6 bolts.
Torque:
11 N·m {112 kgf·cm, 8 ft·lbf}
2. INSTALL EXHAUST MANIFOLD
(a) Install a new exhaust manifold to head gasket to the cylinder head sub-assembly.
(b) Temporarily install the exhaust manifold, No. 1 exhaust manifold heat insulator and No. 1 upper front floor heat insulator.
HINT:
At this time, do not install the parts with bolts or nuts.
(c) Using a 12 mm deep socket wrench, temporarily install the exhaust manifold to the cylinder head sub-assembly with 7 new nuts.
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(d) Using the 12 mm deep socket wrench, tighten the 7 nuts in the order shown in the illustration.
Torque:
26 N·m {265 kgf·cm, 19 ft·lbf}
3. INSTALL MANIFOLD STAY
(a) Temporarily install the manifold stay to the exhaust manifold and cylinder block sub-assembly with the bolt and nut.
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(b) Tighten the bolt and nut in the order shown in the illustration.
Torque:
43 N·m {438 kgf·cm, 32 ft·lbf}
4. INSTALL NO. 1 EXHAUST MANIFOLD HEAT INSULATOR
(a) for Type A:
Using a 10 mm union nut wrench, install the No. 1 exhaust manifold heat insulator to the exhaust manifold with the 3 bolts.
Torque:
Specified tightening torque :
10 N·m {102 kgf·cm, 7 ft·lbf}
HINT:
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Calculate the torque wrench reading when changing the fulcrum length of the torque wrench.
Click here
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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)
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*a
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Torque Wrench Fulcrum Length
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(b) for Type B:
Using a 10 mm union nut wrench, install the No. 1 exhaust manifold heat insulator to the exhaust manifold with the 5 bolts.
Torque:
Specified tightening torque :
10 N·m {102 kgf·cm, 7 ft·lbf}
HINT:
-
Calculate the torque wrench reading when changing the fulcrum length of the torque wrench.
Click here
-
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)
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*a
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Torque Wrench Fulcrum Length
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5. INSTALL NO. 1 UPPER FRONT FLOOR HEAT INSULATOR
(a) Install the No. 1 upper front floor heat insulator to the vehicle body with the 2 nuts.
Torque:
4.9 N·m {50 kgf·cm, 43 in·lbf}
6. INSTALL WIRE HARNESS CLAMP BRACKET
(a) Install the wire harness clamp bracket with the bolt.
Torque:
13 N·m {133 kgf·cm, 10 ft·lbf}
7. INSTALL AIR FUEL RATIO SENSOR (for Sensor 1)
Click here
8. INSTALL FRONT EXHAUST PIPE ASSEMBLY
(a) Install 2 new gaskets to the front exhaust pipe assembly.
(b) Connect the front exhaust pipe assembly to the 2 exhaust pipe supports.
(c) Install the front exhaust pipe assembly to the exhaust manifold and tail exhaust pipe assembly with 2 new bolts and 2 new nuts.
Torque:
43 N·m {438 kgf·cm, 32 ft·lbf}
(d) Connect the air fuel ratio sensor connector.
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*a
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Tie Band
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*b
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Wire Harness Clamp
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(e) Attach the 2 wire harness clamps so that the tie band is positioned as shown in the illustration.
9. INSPECT FOR EXHAUST GAS LEAK
Click here
10. INSTALL ENGINE UNDER COVER HEAT INSULATOR
Click here
11. INSTALL NO. 2 ENGINE UNDER COVER ASSEMBLY
Click here
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