Intake Manifold: Assembly

WARNING: This page is about a different variant/trim than selected.

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 From Intake Manifold And Bolts
Courtesy of SUBARU OF AMERICA, INC.
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 2: Locating Nipple From Intake Manifold Nut
Courtesy of SUBARU OF AMERICA, INC.
Set the fuel delivery pipe and fuel pipe, tighten the clamps which hold the fuel hose to the fuel delivery pipe, and install the fuel delivery pipe to the intake manifold.
Tightening torque:

T1: 1.25 N.m (0.1 kgf-m, 0.9 ft-lb)

T2: 6.4 N.m (0.7 kgf-m, 4.7 ft-lb)

Fig 3: Identifying Fuel Delivery Pipe And Fuel Pipe
Courtesy of SUBARU OF AMERICA, INC.
Connect vacuum hose (A), vacuum control hose (B) and brake booster vacuum hose (C) to the intake manifold.

Fig 4: Identifying Vacuum Hose, Vacuum Control Hose And Brake Booster Vacuum Hose
Courtesy of SUBARU OF AMERICA, INC.
Install the fuel injector.

Fig 5: Installing Fuel Injector
Courtesy of SUBARU OF AMERICA, INC.
Install the bolts which secure fuel pipe to the intake manifold.
Tightening torque: 19 N.m (1.9 kgf-m, 14.0 ft-lb)

Fig 6: Locating Fuel Pipe To Intake Manifold Bolts
Courtesy of SUBARU OF AMERICA, INC.
Install the bolts which secure fuel delivery pipe to the intake manifold, 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 7: Locating Bolts And Fuel Delivery Pipe Assembly To Intake Manifold
Courtesy of SUBARU OF AMERICA, INC.
Install PCV pipe (B) and engine harness (C) to the intake manifold, and install the brake booster vacuum hose to the clip (A).
Tightening torque: 6.4 N.m (0.7 kgf-m, 4.7 ft-lb)

Fig 8: Identifying Brake Booster Vacuum Hose Clip
Courtesy of SUBARU OF AMERICA, INC.
Connect the connector to the fuel injector and the tumble generator valve assembly.

Fig 9: Locating Fuel Injector And Tumble Generator Valve Assembly Connector
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 10: Locating Bolts And Throttle Body To Intake Manifold
Courtesy of SUBARU OF AMERICA, INC.
Connect the connector to the throttle position sensor.

Fig 11: Locating Throttle Position Sensor Connectors
Courtesy of SUBARU OF AMERICA, INC.
Connect the connectors to the purge control solenoid valves 1 and 2.

Fig 12: Locating Purge Control Solenoid Valves Connectors
Courtesy of SUBARU OF AMERICA, INC.
Install the solenoid valve bracket assembly to the intake manifold, and connect the connector to the manifold absolute pressure sensor.
Tightening torque: 19 N.m (1.9 kgf-m, 14.0 ft-lb)

Fig 13: Locating Manifold Absolute Pressure Sensor Connector
Courtesy of SUBARU OF AMERICA, INC.
Connect the vacuum hose to the intake manifold and fuel delivery pipe.

Fig 14: Locating Vacuum Hose To Intake Manifold And Fuel Delivery Pipe
Courtesy of SUBARU OF AMERICA, INC.
Install the filter assembly.

Fig 15: Locating Filter Assembly
Courtesy of SUBARU OF AMERICA, INC.
Install the intake manifold protector LH to the intake manifold, and install the engine ground terminal to the intake manifold protector.
NOTE: Route the from front oxygen (A/F) sensor connector and rear oxygen sensor connector inside the intake manifold protector, as shown in the figure.

Fig 16: Identifying Front Oxygen (A/F) Sensor Connector, Rear Oxygen Sensor Connector And Intake Manifold Protector
Courtesy of SUBARU OF AMERICA, INC.

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

Fig 17: Locating Bolts And Intake Manifold Protector LH
Courtesy of SUBARU OF AMERICA, INC.
Install front oxygen (A/F) sensor connector (A) and rear oxygen sensor connector (B) to the intake manifold protector LH, and also install clip (C) which holds the engine harness.

Fig 18: Identifying Front Oxygen (A/F) Sensor Connector, Rear Oxygen Sensor Connector And Clip
Courtesy of SUBARU OF AMERICA, INC.
Install the intake manifold protector RH to the intake manifold.
Tightening torque: 19 N.m (1.9 kgf-m, 14.0 ft-lb)

Fig 19: Locating Bolts And Intake Manifold Protector RH
Courtesy of SUBARU OF AMERICA, INC.