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Spark Plugs: Installation

  1. Inspect the spark plugs.
    Item Part Number Description
    1 - Deposits bridging spark plug gap
    2 - Wet black deposits (oil fouling)
    3 - Dry black deposits (carbon fouling)
    4 - Normal spark plug
    5 - Pre-ignition
    6 - Overheating
    7 - Fused spot deposits
    2. Fig 1: Identifying Spark Plugs Condition
    GF0019760Courtesy of FORD MOTOR CO.
  2. Adjust the spark plug gap as necessary.
    3. Fig 2: Spark Plug Gap With Specification
    GF0024477Courtesy of FORD MOTOR CO.
    CAUTION: Only use hand tools when removing or installing the spark plugs, or damage can occur to the cylinder head or spark plug.
  3. Install the spark plugs.
    • Tighten to 12 Nm (9 lb-ft).
    4. NOTE: Apply a small amount of dielectric grease to the inside of the ignition coil-on-plug boots before attaching to the spark plugs.
  4. Install the 4 ignition coils and bolts.
    • Tighten to 10 Nm (89 lb-in).
  5. Connect the 4 ignition coil electrical connectors.
  6. Install the generator air inlet duct and the 2 nuts and the bolt.
    • Tighten to 6 Nm (53 lb-in).
    7. Fig 3: Locating Generator Air Inlet Duct, Bolt And Nuts
    GF0028700Courtesy of FORD MOTOR CO.
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