Nissan 100NX N14 silhouetteN14

VE-TYPE INJECTION PUMP - Disassembly (Cont'd) / Inspection

EF & EC-675prose procedure

CD20 diesel engine VE-type injection pump.

Continued from EF & EC-674

Disassembly (Cont'd)

  1. 19
    Remove speed timer cover, O-ring, shims, spring, piston and slider.
    Exploded view of the speed timer assembly. Callout arrows label 'Shim', 'Spring', 'Piston', 'O-ring' (right), 'Slider', and 'O-ring' (lower) around the timer body.
    SEF850A
  2. 20
    Remove regulating valve.
    Regulating valve being removed from the pump body using special tool KV11214260 (a hooked tool) inserted from the right.
    SEF485
  3. 21
    Loosen screw from feed pump cover.
    Screw being loosened from the feed pump cover using a screwdriver, top-down view of the cover with four corner screws.
    SEF486
  4. 22
    Remove cover and feed pump assembly as a unit.
    (1) Insert feed pump holder (KV11229542) into fuel injection pump housing.
    (2) Turn injection pump's top side down, as shown.
    (3) Remove cover and feed pump assembly as a unit.
    a. If cover and feed pump assembly are hard to remove or are stuck midway, strike pump body lightly.
    b. Do not move position of vanes.
    Cover and feed pump assembly being removed as a unit using special tool KV11229542 (feed pump holder) inserted into the pump housing.
    SEF487

Inspection

  1. 1
    Wash all parts completely.
  2. 2
    Replace worn or damaged parts.
  3. 3
    Control edge of plunger must be sharp and contact surfaces must not exhibit any noticeable running tracks. If such is not the case, replace plunger.
  4. 4
    Check height of all rollers.
    Difference in max. and min. roller height should be less than 0.02 mm (0.0008 in).
    Inspection setup measuring roller height; the roller holder mounted on a fixture with a measuring instrument bridging across.
    SEF504
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