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: Applying Liquid Gasket To Nipple Threads And Nipple To Intake Manifold
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 Bolts And Tumble Generator Valve Assembly From Intake Manifold
Courtesy of SUBARU OF AMERICA, INC.
Install the fuel injector pipe.
Connect fuel hoses to the fuel injector pipe and the fuel pipe. < Ref. to CONNECTING THE FUEL DELIVERY HOSE, FUEL RETURN HOSE AND FUEL HOSE , INSTALLATION, Fuel Delivery, Return and Evaporation Lines. >

Fig 3: Locating Clamp And Fuel Hose To Fuel Injector Pipe And Fuel Pipe
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 RH To Intake Manifold With 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 Bolts And Fuel Pipe To Intake Manifold
Courtesy of SUBARU OF AMERICA, INC.
Install the fuel injector.
NOTE: Use new O-rings, rubbers and seal rings.
- RH side
  
  Fig 6: Installing Fuel Injector RH
  Courtesy of SUBARU OF AMERICA, INC.
- LH side
  
  Fig 7: Installing Fuel Injector LH
  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 To Intake Manifold With Bolts RH
  Courtesy of SUBARU OF AMERICA, INC.
- LH side
  
  Fig 9: Locating Fuel Injector Pipe To Intake Manifold With Bolts LH
  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 Bolt And Fuel Injector Pipe LH Onto Intake Manifold
Courtesy of SUBARU OF AMERICA, INC.
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 11: Identifying PCV Pipe, Harness Assembly, Intake Duct, Brake Booster Vacuum Hose, Vacuum Hose And Intake Manifold
Courtesy of SUBARU OF AMERICA, INC.
Connect the connector to the fuel injector and the tumble generator valve assembly.

Fig 12: Locating Connector From Fuel Injector And Tumble Generator Valve Assembly
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 13: Locating Bolts And Throttle Body From Intake Manifold
Courtesy of SUBARU OF AMERICA, INC.
Connect the connector to the throttle position sensor.

Fig 14: Locating Throttle Position Sensor Connector
Courtesy of SUBARU OF AMERICA, INC.
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 15: 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 16: Locating Connector To Wastegate Control Solenoid Valve And Manifold Absolute Pressure Sensor
Courtesy of SUBARU OF AMERICA, INC.
Connect the filter assembly.

Fig 17: Identifying 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 18: Connecting Vacuum Hose
Courtesy of SUBARU OF AMERICA, INC.

Tightening torque:

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

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

Fig 21: Locating Vacuum Hose To Intake Manifold
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 22: Locating Bolts And Engine Ground Terminal From Fuel Pipe Protector 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 23: Locating Bolts And Fuel Pipe Protector RH From Intake Manifold
Courtesy of SUBARU OF AMERICA, INC.