INSPECTION

Perform inspection as follows after removal, installation or replacement of camshaft or valve-related parts, or if there is unusual engine conditions regarding valve clearance.
In cases of removing/installing or replacing camshaft and valve-related parts, or of unusual engine conditions due to changes in valve clearance (found malfunctions during stating, idling or causing noise), perform inspection as follows:

JPBIA0164ZZ.JPG


: Engine front



    1.Remove rocker covers (bank 1 and bank 2). Refer to Exploded View.
    2.Measure the valve clearance as follows:
      (1)Set No. 1 cylinder at TDC of its compression stroke.
      • Rotate crankshaft pulley clockwise to align timing mark (grooved line without color) with timing indicator (1).
        NNBIA0009ZZ.JPG


        : Timing mark (grooved line without color)

        NOTE:
        Timing indicator is not included because it is not factory-supplied.

      • Check that intake and exhaust cam nose on No. 1 cylinder (engine front side of bank 1) are located as shown in the figure.
        NNBIA0042ZZ.JPG
      • If not, turn crankshaft one revolution (360 degrees) and align as shown in the figure.

        : Engine front


      (2)Use a feeler gauge, measure the clearance between valve lifter and camshaft.
      SEM139D.JPG

      Valve clearance
      : Refer to Camshaft (GT-R certified NISSAN dealer).

      • By referring to the figure, measure the valve clearances at locations marked “×” as shown in the table below (locations indicated in the figure).
        JPBIA0165ZZ.JPG


        : Engine front

      • No. 1 cylinder at compression TDC
        Measuring position [bank 1 (A)]
        No. 1 CYL.
        No. 3 CYL.
        No. 5 CYL.
        No. 1 cylinder at compression TDC
        EXH (C)

        × (B)

        INT (D)
        × (E)


        Measuring position [bank 2 (H)]
        No. 2 CYL.
        No. 4 CYL.
        No. 6 CYL.
        No. 1 cylinder at compression TDC
        INT (D)


        × (F)
        EXH (C)
        × (G)




      (3)Rotate crankshaft by 240 degrees clockwise (when viewed from engine front) to align No. 3 cylinder at TDC its compression stroke.
      NOTE:
      Mark a position 240 degrees (b) from a corner of the hexagonal part of crankshaft pulley mounting bolt as shown in the figure. Use the hexagonal part as a guide.

      JPBIA0166ZZ.JPG

      1
      : Crankshaft pulley
      A
      : Paint mark


      • By referring to the figure, measure the valve clearances at locations marked “×” as shown in the table below (locations indicated in the figure).
        JPBIA0167ZZ.JPG


        : Engine front

      • No. 3 cylinder at compression TDC
        Measuring position [bank 1 (A)]
        No. 1 CYL.
        No. 3 CYL.
        No. 5 CYL.
        No. 3 cylinder at compression TDC
        EXH (C)


        × (B)
        INT (D)

        × (E)

        Measuring position [bank 2 (H)]
        No. 2 CYL.
        No. 4 CYL.
        No. 6 CYL.
        No. 3 cylinder at compression TDC
        INT (D)
        × (F)


        EXH (C)

        × (G)



      (4)Rotate crankshaft by 240 degrees clockwise (when viewed from engine front) to align No. 5 cylinder at TDC of compression stroke.
      NOTE:
      Mark a position 240 degrees (b) from a corner of the hexagonal part of crankshaft pulley mounting bolt as shown in the figure. Use the hexagonal part as a guide.

      JPBIA0166ZZ.JPG

      1
      : Crankshaft pulley
      A
      : Paint mark


      • By referring to the figure, measure the valve clearances at locations marked “×” as shown in the table below (locations indicated in the figure).
        JPBIA0168ZZ.JPG


        : Engine front

      • No. 5 cylinder at compression TDC
        Measuring position [bank 1 (A)]
        No. 1 CYL.
        No. 3 CYL.
        No. 5 CYL.
        No. 5 cylinder at compression TDC
        EXH (C)
        × (B)


        INT (D)


        × (E)
        Measuring position [bank 2 (H)]
        No. 2 CYL.
        No. 4 CYL.
        No. 6 CYL.
        No. 5 cylinder at compression TDC
        INT (D)

        × (F)

        EXH (C)


        × (G)


    3.Perform adjustment if the measured value is out of the standard. Refer to Inspection (GT-R certified NISSAN dealer).