Intake Manifold: Installation

Install the intake manifold onto cylinder heads.
NOTE: Use a new gasket.

Tightening torque:

25 N.m (2.5 kgf-m, 18.4 ft-lb)

Fig 1: Locating Intake Manifold Mounting Bolts
Courtesy of SUBARU OF AMERICA, INC.
Connect the fuel delivery hose, fuel return hose, and evaporation hose.

Fig 2: Identifying Fuel Delivery Hose, Fuel Return Hose And Evaporation Hose
Courtesy of SUBARU OF AMERICA, INC.
Fix the engine harness to the rocker cover LH with the air duct.
Tightening torque:

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

Fig 3: Locating Air Duct To Rocker Cover LH Bolts
Courtesy of SUBARU OF AMERICA, INC.
Fix the engine harness to the rocker cover RH with clips (A).

Fig 4: Identifying Engine Harness Clip
Courtesy of SUBARU OF AMERICA, INC.
Lift up the vehicle.
Connect connector (A) to the exhaust camshaft position sensor, connector (B) to the exhaust oil flow control solenoid valve, connector (C) to the ignition coil.

Fig 5: Identifying Exhaust Camshaft Position Sensor, Exhaust Oil Flow Control Solenoid Valve And Ignition Coil Connectors
Courtesy of SUBARU OF AMERICA, INC.
Install the engine harness cover. (right side only.)
Tightening torque:

5 N.m (0.5 kgf-m, 3.7 ft-lb)

Fig 6: Identifying Engine Harness Cover
Courtesy of SUBARU OF AMERICA, INC.
Lower the vehicle.
Connect the connector to the intake oil flow control solenoid valve.

Fig 7: Locating Intake Oil Flow Control Solenoid Valve Connector
Courtesy of SUBARU OF AMERICA, INC.
Connect the connector to the intake camshaft position sensor.

Fig 8: Locating Intake Camshaft Position Sensor Connector
Courtesy of SUBARU OF AMERICA, INC.
Connect the connector to the secondary air combination valve.

Fig 9: Locating Secondary Air Combination Valve Connectors
Courtesy of SUBARU OF AMERICA, INC.
Connect the connector to the knock sensor.

Fig 10: Locating Knock Sensor Connector
Courtesy of SUBARU OF AMERICA, INC.
Connect the connector to the power steering pump switch.

Fig 11: Locating Power Steering Pump Switch Connector
Courtesy of SUBARU OF AMERICA, INC.
Connect the connector (A) to the engine coolant temperature sensor, connector (B) to the oil pressure switch, and the connector (C) to the crankshaft position sensor.

Fig 12: Identifying Engine Coolant Temperature Sensor And Crankshaft Position Sensor Connector
Courtesy of SUBARU OF AMERICA, INC.
Install the engine harness connector to engine harness bracket, then connect the bulkhead harness connector to the engine harness connector.

Fig 13: Locating Bulkhead Harness Connectors
Courtesy of SUBARU OF AMERICA, INC.
Install the engine harness to clip (A).

Fig 14: Identifying Engine Harness Clip
Courtesy of SUBARU OF AMERICA, INC.
Install the engine coolant hose to the water tank pipe.

Fig 15: Locating Engine Coolant Hose Clamp
Courtesy of SUBARU OF AMERICA, INC.
Connect the air control hose (A) to the wastegate actuator, and install the turbocharger to the intake duct.
Tightening torque:

3 N.m (0.3 kgf-m, 2.2 ft-lb)

Fig 16: Identifying Air Control Hose
Courtesy of SUBARU OF AMERICA, INC.
Connect the vacuum hose (A) and connector (B) to the PCV hose assembly B.

Fig 17: Identifying Vacuum Hose And Connector
Courtesy of SUBARU OF AMERICA, INC.
Install the vacuum hose to clip (B), and install the PCV hose assembly A to clip (A).

Fig 18: Identifying PCV Hose Assembly Clip And Vacuum Hose Clip
Courtesy of SUBARU OF AMERICA, INC.
Connect the connector to the PCV hose assembly A.

Fig 19: Locating PCV Hose Assembly Connector
Courtesy of SUBARU OF AMERICA, INC.
Connect the brake booster vacuum hose (A) and pressure regulator vacuum hose (B) to the intake manifold.

Fig 20: Identifying Brake Booster And Pressure Regulator Vacuum Hose
Courtesy of SUBARU OF AMERICA, INC.
Connect the engine coolant hoses to throttle body.

Fig 21: Locating Engine Coolant Hose Clamp
Courtesy of SUBARU OF AMERICA, INC.
Install the A/C pressure hoses to A/C compressor. < Refer to INSTALLATION , Hose and Pipe. >
Install the coolant filler tank. < Refer to INSTALLATION , Coolant Filler Tank. >
Install the generator. < Refer to INSTALLATION , Generator. >
Install the intercooler. < Refer to INSTALLATION , Intercooler. >
Install the air intake boot.
Tightening torque:

2.5 N.m (0.3 kgf-m, 1.8 ft-lb)

Fig 22: Locating Air Intake Boot
Courtesy of SUBARU OF AMERICA, INC.
Install the air intake duct. < Refer to INSTALLATION , Air Intake Duct. >
Connect the battery ground terminal.

Fig 23: Connecting Battery Ground Terminal
Courtesy of SUBARU OF AMERICA, INC.
Lift up the vehicle.
Install the under cover. < Refer to INSTALLATION , Front Under Cover. >
Lower the vehicle.
Install the V-belt cover.
Tightening torque:

13 N.m (1.3 kgf-m, 9.6 ft-lb)

Fig 24: Locating V-Belt Cover
Courtesy of SUBARU OF AMERICA, INC.
Fill engine coolant. < Refer to FILLING OF ENGINE COOLANT , REPLACEMENT, Engine Coolant. >
Charge the A/C system with refrigerant. < Refer to PROCEDURE , Refrigerant Charging Procedure. >