Intake Manifold: Assembly

1. Install the tumble generator valve assembly onto intake manifold.
   NOTE: Use new O-rings.

   Tightening torque: 8.3 N.m (0.8 kgf-m, 6.1 ft-lb) 

   Fig 1: Locating Tumble Generator Valve Assembly Bolts

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2. Install the fuel injector pipe.
3. Connect fuel hoses to fuel injector pipes, and secure them with the clamps.

   Tightening torque: 1.25 N.m (0.1 kgf-m, 0.9 ft-lb) 

   Fig 2: Identifying Fuel Hose Fuel Injector Pipe

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4. Secure the fuel injector pipe RH to intake manifold with bolt.

   Tightening torque: 6.4 N.m (0.7 kgf-m, 4.7 ft-lb) 

   Fig 3: Locating Fuel Injector Pipe RH And Bolt

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5. Secure the fuel injector pipe LH to intake manifold with bolt.

   Tightening torque: 6.4 N.m (0.7 kgf-m, 4.7 ft-lb) 

   Fig 4: Locating Fuel Injector Pipe LH And Bolt

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6. Install the fuel injector.
   • RH side
     Fig 5: Identifying Fuel Injector (RH Side)

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   • LH side
   Fig 6: Identifying Fuel Injector (LH Side)

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7. Secure the fuel injector pipe to intake manifold with bolts.

   Tightening torque: 19 N.m (1.9 kgf-m, 14.0 ft-lb) 

   • RH side
     Fig 7: Locating Fuel Injector Pipe Onto Intake Manifold And Bolts (RH)

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   • LH side
   Fig 8: Locating Fuel Injector Pipe Onto Intake Manifold And Bolts (LH)

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8. Secure the fuel injector pipe LH to intake manifold with bolt, and connect the pressure regulator vacuum hose to the intake manifold.

   Tightening torque: 6.4 N.m (0.7 kgf-m, 4.7 ft-lb) 

   Fig 9: Locating Fuel Injector Pipe LH And Bolt

   Courtesy of SUBARU OF AMERICA, INC.
9. Install PCV pipe (A), harness assembly (B) and intake duct (C) to the intake manifold.

   Tightening torque: 6.4 N.m (0.7 kgf-m, 4.7 ft-lb) 

   Fig 10: Locating PCV Pipe, Harness Assembly And Intake Duct

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10. Connect the connector to the fuel injector and the tumble generator valve assembly.
    Fig 11: Locating Fuel Injector And Tumble Generator Valve Assembly Connectors

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11. Install the throttle body to the intake manifold.
    NOTE: Use new O-rings.

    Tightening torque: 8 N.m (0.8 kgf-m, 5.9 ft-lb) 

    Fig 12: Locating Throttle Body To Intake Manifold And Bolts

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12. Connect the connector to the throttle position sensor.
    Fig 13: Locating Throttle Position Sensor Connectors

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13. Connect the evaporation hose to purge control solenoid valve 2.
    NOTE: Connect the evaporation hose as shown in the figure.
    Fig 14: Connecting Evaporation Hose To Purge Control Solenoid Valve

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14. Connect the connectors to the wastegate control solenoid valve, manifold absolute pressure sensor and purge control solenoid valve 2, and install the solenoid valve bracket assembly to the intake manifold.

    Tightening torque: T1: 17 N.m (1.7 kgf-m, 12.5 ft-lb) 

    T2: 19 N.m (1.9 kgf-m, 14.0 ft-lb) 

    Fig 15: Connecting Connectors To Wastegate Control Solenoid Valve

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15. Connect the filter assembly.
    Fig 16: Connecting Filter Assembly

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16. Connect the evaporation hose and the connector to the purge control solenoid valve 1, and install the purge control solenoid valve 1 to the intake manifold.
    NOTE: Connect the evaporation hose as shown in the figure.
    Fig 17: Connecting Evaporation Hose To Purge Control Solenoid Valve

    Courtesy of SUBARU OF AMERICA, INC.

    Tightening torque: 6.4 N.m (0.7 kgf-m, 4.7 ft-lb) 

    Fig 18: Locating Evaporation Hose And Connector With Bolt

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17. Install the fuel pipe protector RH to the intake manifold.

    Tightening torque: 19 N.m (1.9 kgf-m, 14.0 ft-lb) 

    Fig 19: Locating Fuel Pipe Protector RH And Bolts

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18. Install the fuel pipe protector LH to the intake manifold, and install the engine ground terminal to the fuel pipe protector LH.

Tightening torque: 19 N.m (1.9 kgf-m, 14.0 ft-lb) 

Fig 20: Locating Fuel Pipe Protector LH And Bolts

Courtesy of SUBARU OF AMERICA, INC.