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
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 Of 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 FUEL DELIVERY HOSE, FUEL RETURN HOSE AND FUEL HOSE, INSTALLATION , Fuel Delivery, Return and Evaporation Lines. >

Fig 3: Locating Fuel Injector Pipe RH Clamps
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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 Bolt Of Intake Manifold
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 Bolt Of Intake Manifold
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Install the fuel injector.
NOTE: Use new O-rings, rubbers and seal rings.
- RH side
  
  Fig 6: Installing Fuel Injector (RH Side)
  Courtesy of SUBARU OF AMERICA, INC.
- LH SIDE
  
  Fig 7: Installing 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 Of Intake Manifold (RH Side)
  Courtesy of SUBARU OF AMERICA, INC.
- LH SIDE
  
  Fig 9: Locating Fuel Injector Pipe Bolts Of Intake Manifold (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 Fuel Injector Pipe LH Bolt
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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 And Intake Duct Of Intake Manifold
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Connect the connector to the fuel injector and the tumble generator valve assembly.

Fig 12: Locating Connectors Of 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 Throttle Body Bolts Of Intake Manifold
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Connect the connector to the throttle position sensor.

Fig 14: Identifying 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 15: Connecting Vacuum Hose
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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: Identifying Solenoid Valve Bracket Assembly Mounting Bolts
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Connect the filter assembly.

Fig 17: Identifying Filter Assembly
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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
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Tightening torque: 6.4 N.m (0.7 kgf-m, 4.7 ft-lb)

Fig 19: Locating Fuel Pipe Connector And Mounting Bolt
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Connect the vacuum hose to the intake manifold.
NOTE: Connect the vacuum hose as shown in the figure.

Fig 20: Connecting Vacuum Hose
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Fig 21: Locating Intake Manifold Vacuum Hose
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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 Fuel Pipe Protector LH Mounting Bolts
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 Fuel Pipe Protector RH Mounting Bolts Of Intake Manifold
Courtesy of SUBARU OF AMERICA, INC.