Intake Manifold: Assembly

Apply liquid gasket to the nipple threads, and install the nipple to the intake manifold.
Liquid gasket:

THREE BOND 1105 (Part No. 004403010) or equivalent

Tightening torque:

23 N.m (2.3 kgf-m, 17.0 ft-lb)

Fig 1: Identifying Liquid Gasket Applying Area On Nipple Threads
Courtesy of SUBARU OF AMERICA, INC.
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 2: Locating Tumble Generator Valve Assembly Mounting Bolts
Courtesy of SUBARU OF AMERICA, INC.
Install the fuel injector pipe.
Connect fuel hoses to the fuel injector pipe and the fuel pipe. < Refer to CONNECTING FUEL DELIVERY HOSE, FUEL RETURN HOSE AND FUEL HOSE , INSTALLATION, Fuel Delivery, Return and Evaporation Lines. >

Fig 3: Locating Fuel Hose To Fuel Injector Pipe Mounting Clamp
Courtesy of SUBARU OF AMERICA, INC.
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 4: Locating Fuel Injector Pipe Mounting Bolt
Courtesy of SUBARU OF AMERICA, INC.
Secure the fuel pipe to intake manifold with bolts.
Tightening torque:

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

Fig 5: Locating Fuel Pipe Mounting Bolt
Courtesy of SUBARU OF AMERICA, INC.
Install the fuel injector.
NOTE: Use new O-rings, rubbers and seal rings.
- RH side
  
  Fig 6: Removing Fuel Injector (RH Side)
  Courtesy of SUBARU OF AMERICA, INC.
- LH side
  
  Fig 7: Removing Fuel Injector (LH Side)
  Courtesy of SUBARU OF AMERICA, INC.
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 8: Locating Fuel Injector Pipe Bolts (RH Side)
  Courtesy of SUBARU OF AMERICA, INC.
- LH side
  
  Fig 9: Locating Fuel Injector Pipe Bolts (LH Side)
  Courtesy of SUBARU OF AMERICA, INC.
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 10: Locating Pressure Regulator Vacuum Hose And Bolt
Courtesy of SUBARU OF AMERICA, INC.
Install the PCV pipe (A), harness assembly (B), intake duct (C), brake booster vacuum hose (D) and vacuum hose (E) to the intake manifold.
Tightening torque:

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

Fig 11: Identifying PCV Pipe, Harness Assembly, Intake Duct, Brake Booster And Intake Manifold Vacuum Hose
Courtesy of SUBARU OF AMERICA, INC.
Connect the connector to the fuel injector and the tumble generator valve assembly.
- RH side
  
  Fig 12: Locating Fuel Injector And Tumble Generator Valve Assembly Connector (RH Side)
  Courtesy of SUBARU OF AMERICA, INC.
- LH side
  
  Fig 13: Locating Fuel Injector And Tumble Generator Valve Assembly Connector (LH Side)
  Courtesy of SUBARU OF AMERICA, INC.
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 14: Locating Throttle Body Mounting Bolts
Courtesy of SUBARU OF AMERICA, INC.
Connect the connector to the throttle position sensor.

Fig 15: Locating Throttle Position Sensor Connector
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Connect the vacuum hose to the intake duct and the fuel pipe, then connect the connector to the purge control solenoid valve 2.
NOTE: Connect the vacuum hose as shown in the figure.

Fig 16: Connecting Vacuum Hose To Intake Duct And Fuel Pipe
Courtesy of SUBARU OF AMERICA, INC.
Install the solenoid valve bracket assembly to the intake manifold, and connect the connector to the wastegate control solenoid valve and the manifold absolute pressure sensor.
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 17: Locating Wastegate Control Solenoid Valve And Manifold Absolute Pressure Sensor Connector
Courtesy of SUBARU OF AMERICA, INC.
Connect the filter assembly.

Fig 18: Locating Filter Assembly
Courtesy of SUBARU OF AMERICA, INC.
Connect the vacuum hose and the connector the fuel pipe, and install the purge control solenoid valve 1 to the intake manifold.
NOTE: Connect the vacuum hose as shown in the figure.

Fig 19: Connecting Vacuum Hose And Connector To Fuel Pipe
Courtesy of SUBARU OF AMERICA, INC.

Tightening torque:

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

Fig 20: Locating Fuel Pipe Connector
Courtesy of SUBARU OF AMERICA, INC.
Connect the vacuum hose to the intake manifold.
NOTE: Connect the vacuum hose as shown in the figure.

Fig 21: Connecting Vacuum Hose To Intake Manifold
Courtesy of SUBARU OF AMERICA, INC.

Fig 22: Locating Vacuum Hose
Courtesy of SUBARU OF AMERICA, INC.
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 23: Locating Fuel Pipe Protector Bolts (LH)
Courtesy of SUBARU OF AMERICA, INC.
Install the fuel pipe protector RH to the intake manifold.
Tightening torque:

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

Fig 24: Locating Fuel Pipe Protector Bolts (RH)
Courtesy of SUBARU OF AMERICA, INC.