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Home >> Nissan-Datsun >> 2021 >> NV2500 HD S >> Repair and Diagnosis >> External Pages >> Different car >> Section 212 (Engine Mechanical (CUMMINS 5.0L) (2 Of 2)) >> Removal And Installation >> Fuel Injector >> Removal and Installation (CYLINDER 6 and CYLINDER 8) >> Installation

Removal and Installation (CYLINDER 6 and CYLINDER 8): Installation

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  1. Record the fuel injector trim codes that are listed on the top of each fuel injector (1) and record the cylinder location where each injector will be installed.
    GNSALBIA2189Z-189Courtesy of NISSAN NORTH AMERICA, INC.
    NOTE:
    • The fuel injector trim codes are seven character alphanumeric codes located the top of the injector.
    • If the fuel injector is replaced, perform INJECTOR ADJUSTMENT VALUE REGISTRATION. Refer to Description .
  2. Verify that the new injector sealing washer (1) is the correct thickness using a suitable tool (A).
    GNSALBIA2190Z-190Courtesy of NISSAN NORTH AMERICA, INC.
    CAUTION:
    • To avoid possible leaks, fuel system component damage or performance issues, always use the correct components, assemble in the correct order and tighten fuel system components to the specified torque.
    • Do not reuse the sealing washer.

    Injector sealing washer thickness (B)

    : 2.5 mm (0.10 in)
  3. Verify a new sealing washer has been installed on the tip of the injector.
    GNSALBIA2191Z-191Courtesy of NISSAN NORTH AMERICA, INC.
    NOTE: A double stacked or incorrect sealing washer can cause high-pressure fuel leaks and/or performance problems because of incorrect injector protrusion.

    (A)

    : Good

    (B)

    : NG
  4. Position fuel injector pairs into a hold-down clamp (1) and make sure the spherical washer (B) is installed between the bolt (A) and the hold-down clamp with the flat side of the washer mating to the bolt.
    GNSALBIA2192Z-192Courtesy of NISSAN NORTH AMERICA, INC.
    CAUTION: Do not reuse the O-ring.
    NOTE:
    • Install a new O-ring if reinstalling existing fuel injector.
    • Lubricate the injector o-ring with lithium grease and a small amount of clean engine oil.
    • The injector hold-down clamp is noted with a "TOP" on the side of the injector clamp that points outward of the engine.
    • Make sure the injector bore is clean.
  5. Install pairs of injectors (2) into the injector bores in the cylinder heads.
    GNSALBIA2193Z-193Courtesy of NISSAN NORTH AMERICA, INC.
    NOTE:
    • The Bank 2 injector harness connectors (A) point to the rear of the engine. Bank 1 injector harness connectors (A) point to the front of the engine.
    • If reusing the injector, make sure that the number identified on the injector matches the cylinder number.
    • Be careful that pressure is not placed on the electrical connectors. The electrical connectors can break off if used to push on the injector.

    (1)

    : Injector hold-down clamp
  6. Tighten the injector hold-down clamp bolt (A).
    GNSALBIA2184Z-184Courtesy of NISSAN NORTH AMERICA, INC.

    Step 1

    : 24 N.m (2.4 kg-m, 18 ft-lb)

    Step 2

    : Tighten 90 degrees

    (B)

    : Spherical washer
  7. Installation of the remaining components is in the reverse order of removal.
    NOTE:
    • If a malfunction resulted in coolant, oil, excessive fuel, or excessive black smoke entering the exhaust system, the aftertreatment system must be inspected. Refer to and Aftertreatment DPF Regeneration Test .
    • Prime the fuel system. Refer to Priming (Fuel system priming).
    • Run CONSULT High-Pressure Fuel System Leak Test. Refer to High-Pressure Fuel System Leak Test .
    • Operate the engine and check for leaks.
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