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 ft-lb)

Fig 1: Locating Tumble Generator Valve Assembly Bolts
Courtesy of SUBARU OF AMERICA, INC.
Connect the fuel delivery hose, return hose, and evaporation hose. <Ref. to INSTALLATION , Fuel Delivery, Return and Evaporation Lines .>
NOTE: If fuel hoses or clamps are damaged, replace them with new parts.

Fig 2: Identifying Fuel Delivery Hose, Fuel Return Hose And Evaporation Hose
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Tighten the hose clamp screw.
Tightening torque:

1.25 N.m (0.13 kgf-m, 0.94 ft-lb)
Connect the connector to the oil flow control solenoid valve.

Fig 3: Identifying Oil Flow Control Solenoid Valve Connector
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Connect the connector to the engine coolant temperature sensor (A), oil pressure switch (B) and crankshaft position sensor (C).

Fig 4: Identifying Engine Coolant Temperature Sensor, Oil Pressure Switch And Crankshaft Position Sensor
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Connect the connector to the knock sensor.

Fig 5: Identifying Knock Sensor Connector
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Connect the connector to the power steering pump switch.

Fig 6: Identifying Power Steering Pump Switch Connector
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Connect the connectors to camshaft position sensor.

Fig 7: Identifying Camshaft Position Sensor Connector
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Connect the connector to the secondary air combination valve.

Fig 8: Identifying Secondary Air Combination Valve Connector
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Connect the connector to the ignition coil.

Fig 9: Locating Ignition Coil Connectors
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Install the engine harness with clip (A) to the rocker cover.

Fig 10: Identifying Engine Harness Clip
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Connect the engine harness connectors to the bulkhead harness connectors.

Fig 11: Locating Engine Harness Connector
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Connect the brake booster hose.

Fig 12: Identifying Brake Booster Hose
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Connect the PCV hose to the rocker cover and lock it by fitting the clamp protrusion using ST.
ST 18353AA000 CLAMP PLIERS

NOTE: Use a new clamp.

Fig 13: Identifying ST 18353AA000 Clamp Pliers
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Connect the engine coolant hoses to throttle body.

Fig 14: Identifying Engine Coolant Hoses
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Install the duct to the throttle body.
Attach the bolts which secure the air by-pass pipe and PCV pipe to the intake manifold.
Tightening torque:

6.5 N.m (0.66 kgf-m, 4.8 ft-lb)

Fig 15: Locating Air By-Pass Pipe Bolts
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Connect the emission hose (A) and the connector (B) to the PCV hose assembly.

Fig 16: Connecting Connector To PCV Hose Assembly
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Fig 17: Identifying Emission Hose
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Install the coolant filler tank. <Ref. to INSTALLATION , Coolant Filler Tank .>
Install the intercooler. <Ref. to INSTALLATION , Intercooler .>
Install the intake duct to the air cleaner case.
Install the fuse of fuel pump to the main fuse box.
Connect the battery ground cable to the battery.
Lift the vehicle.
Install the under cover.
Fill engine coolant. <Ref. to FILLING OF ENGINE COOLANT , REPLACEMENT, Engine Coolant .>
Install the collector cover.