Nissan 100NX N14 silhouetteN14

Injection Nozzle

EF & EC-701prose procedure

CD engine (CD20 diesel) injection nozzle cleaning and assembly.

Continued from EF & EC-700

Cleaning (Cont'd)

  1. 4
    Clean spray hole of nozzle body by using Tool.
    To prevent spray hole from canting, always clean it by starting with inner side and working towards outside.
    Illustration of a hand using special tool KV11290220 to clean the spray hole of the nozzle body.
    SEF833
  2. 5
    Decarbonate nozzle needle tip by using Tool.
    Illustration of hands using special tool KV11290140 to decarbonate the nozzle needle tip.
    SEF834
  3. 6
    Check needle sinking. (1) Pull needle about halfway out from body and then release it. (2) Needle should sink into body very smoothly from just its own weight. (3) Repeat this test and rotate needle slightly each time.
    If needle fails to sink smoothly from any position, replace both needle and body as a unit.
    Illustration of the nozzle body held in hand with an arrow indicating the needle being pulled out about halfway, demonstrating the needle sinking test.
    SEF835

Assembly

Assemble in the reverse order of disassembly, observing the following.

Assembly

  1. 1
    If nozzle body is not installed properly, Tool cannot be removed and nozzle body may be damaged.
    If nozzle body is not installed properly, Tool cannot be removed and nozzle body may be damaged.
    Illustration of a hand using special tool KV11292010 during assembly of the nozzle body, with the tool engaging the nozzle assembly held in a fixture.
    SEF671A
Holder to nozzle nuttightening torque
78 - 98N·m8.0 - 10.0kg-m58 - 72ft-lb
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