Nissan 100NX N14 silhouetteN14

VE-TYPE INJECTION PUMP — Testing of Injection Pump (Cont'd)

EF & EC-695prose procedure

Injection timing mark differs by engine: CD17 11° ATDC, CD20 9° ATDC. VE-type injection pump applies to CD diesel engines.

Continued from EF & EC-694

Testing of Injection Pump (Cont'd)

Cold start device adjustment (continued)

  1. 6
    Select feeler gauge whose thickness equals the specified clearance [obtained from S.D.S.: ℓ ± 0.05 mm (0.0020 in)] between idle adjusting screw and control lever.
    Illustration showing the idle adjusting screw and control lever with a feeler gauge inserted between them ("Insert feeler gauge here"). Callouts label the idle adjusting screw and control lever.
    SEC648B
  2. 7
    Insert the feeler gauge between idle adjusting screw and control lever.
  3. 8
    Turn cold start linkage screw C such that fast idle adjusting screw F slightly contacts control lever.
    Illustration of the injection pump linkage showing control lever, fast idle adjusting screw F, and cold start linkage screw C, with callouts labelling each.
    SEC650B

Installation

  1. 1
    Set No. 1 piston at injection timing mark on its compression stroke.
    Injection timing mark: Yellow painted mark
    CD17: 11° ATDC
    CD20: 9° ATDC
    Illustration of the crankshaft pulley / timing gear showing the injection timing mark (yellow painted mark) and the T.D.C. mark for setting No. 1 piston on compression stroke.
    SEC573B
  2. 2
    Install injection pump and timing belt.
    Refer to MA section for installing timing belt.
    Temporarily secure injection pump bolts so alignment mark on injection pump flange meets the mark on injection pump bracket.
    Illustration of the injection pump flange showing alignment marks to be matched when temporarily securing injection pump bolts, with a dimension marker (≈110).
    SEC541B
  3. 3
    Adjust injection timing.

Adjustment

INJECTION TIMING ADJUSTMENT (Plunger lift adjustment)

Preparation of cold start device

  1. 1
    Turn cold start device linkage clockwise.
  2. 2
    Set a suitable block [Thickness: about 15 mm (0.59 in)] between cold start device plunger and linkage rod.
    Illustration of the cold start device with a block inserted between the cold start device plunger and linkage rod (labelled "Block").
    SEF777A
  3. 3
    Turn crankshaft 2 turns clockwise to set the device to normal position.
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See also

MA section

S.D.S.

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