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Home >> Nissan-Datsun >> 2003 >> Sentra Limited >> Repair and Diagnosis >> External Pages >> Different car >> Section 1040 (Engine Mechanical - QG18DE) >> Fuel Injector And Fuel Tube >> Removal and Installation >> Installation >> Notes

Removal and Installation: Installation: Notes

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  1. Installation is in the reverse order of removal.
    • Install new O-rings on the fuel injectors.
    • Lubricate the new O-rings lightly with new engine oil.
    • Be careful not to scratch the injector during installation. Also be careful not to twist or stretch the O-ring.

      If the O-ring was stretched while it was installed, do not insert it into the fuel tube immediately.

  1. Install the fuel injector into the fuel tube with the following procedure:
    • Do not reuse the clip, replace it with a new one.
    • Insert the clip into the clip mounting groove on the fuel injector.
    • Insert clip so that lug A of fuel injector matches notch A of the clip.
  2. Insert fuel injector into fuel tube with clip attached.
    • Insert it while matching it to the axial center.
    • Insert fuel injector so that projection B of fuel injector matches notch B of the clip.
    • Make sure that fuel tube flange is securely fixed in flange fixing groove on the clip.
    • Make sure that installation is complete by checking that fuel injector does not rotate or come off.
  3. Install the fuel tube assembly with the following procedure:
    • Insert the tip of each fuel injector into the intake manifold.
      Fig 1: Installing Fuel Injector Into Fuel Tube
      G00773932Courtesy of NISSAN MOTOR CO., U.S.A.
    • Tighten the fuel tube nuts in two steps in the order shown.
      1. Step 1 :12 - 14 N.m (1.2 - 1.4 kg-m, 9 - 10 ft-lb) 
      2. Step 2 :17 - 24 N.m (1.7 - 2.4 kg-m, 12 - 17 ft-lb) 
    CAUTION:
    • After properly connecting fuel tube assembly to injector and fuel hose, check connection for fuel leakage.
    Fig 2: Tightening Fuel Tube Nuts
    G00773933Courtesy of NISSAN MOTOR CO., U.S.A.