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Home >> Subaru >> 2003 >> Forester X, Automatic >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Fuel Injection (Fuel Systems) >> Intake Manifold >> Assembly
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Intake Manifold: Assembly

  1. Install the fuel pipe assembly and pressure regulator, etc. to the intake manifold.
  2. Tighten the bolt which installs the fuel pipes on the intake manifold.

    Tightening torque: 

    1. 5.0 N.m (0.51 kgf-m, 3.7 ft-lb) 
    Fig 1: Installing Fuel Pipe Assembly & Pressure Regulator, Etc. To Intake Manifold By Tightening Bolt
    G02945189Courtesy of SUBARU OF AMERICA, INC.
  3. Connect the right side fuel hose to the injector pipe, and tighten the clamp screw.
    Fig 2: Connecting Right Side Fuel Hose To Injector Pipe
    G02945190Courtesy of SUBARU OF AMERICA, INC.
  4. Install the fuel injector pipe.
    Fig 3: Installing Fuel Injector Pipe
    G02945191Courtesy of SUBARU OF AMERICA, INC.
  5. Connect the left side fuel hose to the injector pipe, and tighten the clamp screw.
    Fig 4: Connecting Left Side Fuel Hose To Injector Pipe
    G02945192Courtesy of SUBARU OF AMERICA, INC.
  6. Connect the air assist hoses.
    Fig 5: Connecting Air Assist Hoses
    G02945193Courtesy of SUBARU OF AMERICA, INC.
  7. Install the fuel injectors.
    NOTE: Replace the O-rings with new ones.
    Fig 6: Installing Fuel Injector By Replacing O-Ring With New Ones
    G02945194Courtesy of SUBARU OF AMERICA, INC.
    NOTE: Do not forget to install the fuel injector securing clip.
    Fig 7: Installing Fuel Injector
    G02945195Courtesy of SUBARU OF AMERICA, INC.
  8. Tighten the bolt which installs the injector pipe on the intake manifold.

    Tightening torque: 

    1. 5.0 N.m (0.51 kgf-m, 3.7ft-lb) 
    Fig 8: Injector Pipe Bolt Torque Specification
    G02945196Courtesy of SUBARU OF AMERICA, INC.

    Tightening torque: 

    1. 19 N.m (1.9 kgf-m, 13.7 ft-lb) 
    Fig 9: Locating 2 Bolt For Tightening
    G02945197Courtesy of SUBARU OF AMERICA, INC.
  9. Tighten the two bolts which install the fuel pipes on the left side of intake manifold.

    Tightening torque: 

    1. 5.0 N.m (0.51 kgf-m, 3.7 ft-lb) 
    Fig 10: Identifying Bolts For Tightening
    G02945198Courtesy of SUBARU OF AMERICA, INC.
  10. Tighten the bolt which install the injector pipe on the intake manifold.

    Tightening torque: 

    1. 5.0 N.m (0.51 kgf-m, 3.7 ft-lb) 
    Fig 11: Identifying Bolt For Tightening
    G02945199Courtesy of SUBARU OF AMERICA, INC.
  11. Install the purge control solenoid valve.

    Tightening torque: 

    1. 19 N.m (1.9 kgf-m, 13.7 ft-lb) 
    Fig 12: Installing Purge Control Solenoid Valve
    G02945200Courtesy of SUBARU OF AMERICA, INC.
  12. Connect the hoses to the purge control solenoid valve.
    CAUTION: Connect the evaporation hose as shown in the figure. 
    Fig 13: Installing Evaporation Hose Connection
    G02945201Courtesy of SUBARU OF AMERICA, INC.
  13. Install the engine harness onto the intake manifold.

    Tightening torque: 

    1. 16 N.m (1.6 kgf-m, 11.8 ft-lb) 
  14. Connect the connectors to the fuel injectors and purge control solenoid valve.
  15. Hold the engine harness by harness band (A) and harness bracket (B).
    Fig 14: Holding Engine Harness By Harness Band & Harness Bracket
    G02945202Courtesy of SUBARU OF AMERICA, INC.
    NOTE: Do not use harness band on harnesses where they are supposed to be protected by the fuel pipe protector.
  16. Install the fuel pipe protector RH.

    Tightening torque: 

    1. 19 N.m (1.9 kgf-m, 13.7 ft-lb) 
    Fig 15: Installing Fuel Pipe Protector RH
    G02945203Courtesy of SUBARU OF AMERICA, INC.
  17. Install the fuel pipe protector LH.

    Tightening torque: 

    1. 19 N.m (1.9 kgf-m, 13.7 ft-lb) 
    Fig 16: Installing Fuel Pipe Protector LH
    G02945204Courtesy of SUBARU OF AMERICA, INC.
  18. Connect the pressure regulator vacuum hose to the intake manifold.
    Fig 17: Connecting Pressure Regulator Vacuum Hose To Intake Manifold
    G02945205Courtesy of SUBARU OF AMERICA, INC.
  19. Install the air assist injector solenoid valve to the bracket. Refer to INSTALLATION , Air Assist Injector Solenoid Valve.
  20. Install the throttle body to the intake manifold. Refer to INSTALLATION , Throttle Body.
  21. Install the ignition coil and ignition assembly.
    Fig 18: Installing Ignition Coil & Ignitor Assembly
    G02945206Courtesy of SUBARU OF AMERICA, INC.
  22. Connect the connector to the ignition coil and ignitor assembly.
  23. Install the engine ground terminal to the intake manifold.

    Tightening torque: 

    1. 19 N.m (1.9 kgf-m, 13.7 ft-lb) 
    Fig 19: Installing Engine Ground Terminal To Intake Manifold
    G02945207Courtesy of SUBARU OF AMERICA, INC.