Exhaust Manifold: Service and Repair
Removal1. Disconnect battery ground cable.
2. Disconnect PCV hose from air intake duct.
3. Remove a nut from air intake duct bracket and loosen hose clamp on throttle body. Remove air intake duct assembly with air cleaner cover.
4. Remove air intake duct bracket with ground cable.
5. Remove four fixing bolts on exhaust manifold heat protector.
6. Remove fixing four nuts from flange of front exhaust pipe and remove fixing bolts from silencer side.
7. Remove ten exhaust manifold fixing nuts then remove exhaust manifold.
Installation
1. Install exhaust manifold and tighten fixing nuts to be tightened in three steps.
- Tightening sequence:
Step 1: J G H B D C J G B D
Step 2: A B C D E F G H J K
Step 3: A B C D E F G H J K
- Tightening torque:
Step 1: 14 Nm (10 ft. lbs.)
Step 2: 20 Nm (14 ft. lbs.)
Step 3: 20 Nm (14 ft. lbs.)
2. Install front exhaust pipe to exhaust manifold and tighten fixing nut to the specified torque.
Torque: 25 Nm (18 ft. lbs.)
3. Tighten silencer side bolt to the specified torque.
Torque: 68 Nm (50 ft. lbs.)
4. Install exhaust manifold heat protector and tighten bolt.
Torque: 8 Nm (5.9 ft. lbs.)
5. Install intake duct bracket with ground cable.
6. Install intake duct assembly to throttle body and air cleaner then tighten nut to the intake duct bracket and clamp on the throttle body side, also clamp air cleaner cover.
7. Connect PCV hose to air intake duct.
8. Connect battery ground cable.