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Home >> Infiniti >> 2018 >> Q70 5.6 Luxe, RWD >> Repair and Diagnosis >> Engine Mechanical >> Mechanical >> Engine Mechanical (5.6L) (Except Hybrid) >> Removal And Installation >> Ignition Coil, Spark Plug And Rocker Cover >> Removal and Installation >> Removal

Removal and Installation: Removal

  1. Remove the following parts:
    • Engine cover: Refer to Exploded View .
    • Air duct (inlet), air cleaner case assembly and air duct: Refer to Exploded View .
    • Remove harness clip and harness bracket, and move engine harness.
  2. Remove ignition coil.
    CAUTION: Never impact it.
    NOTE: Installation position of ignition coil depends on cylinder position.
  3. Disconnect PCV hose from rocker cover.
  4. Remove spark plugs. Refer to Removal and Installation .
    CAUTION: Never impact it.
  5. Remove the rocker cover, refer to following.
    1. Bank 1

      Bank 2

      • Remove EVAP hose.
      • Release fuel pressure. Refer to Work Procedure .
      • Disconnect battery cable from the negative terminal.
      • Remove water hose. Refer to Exploded View .
      • Disconnect low fuel pressure sensor harness connector and quick connector. Refer to Removal and Installation .
      • Remove fuel feed hose mounting bolt. Refer to Exploded View .
      • Move the fuel feed hose.
    2. Loosen rocker cover bolts in reverse order shown in the figure, below.
      Fig 1: Rocker Cover Bolt Tightening Sequence
      GNSJPBIA3536GB-536Courtesy of NISSAN NORTH AMERICA, INC.

      A

      : Bank 2

      B

      : Bank 1

      SYMBOL

      : Engine front

    3. Remove rocker cover.
  6. Remove rocker cover gasket from rocker cover.
  7. Use scraper to remove all traces of liquid gasket from cylinder head & VVEL ladder assembly.
    CAUTION: Never scratch or damage the mating surface when cleaning off old liquid gasket.
  8. Remove PCV valve from rocker cover, if necessary.
  9. Remove oil filler cap and oil catcher from rocker cover, if necessary.