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Home >> Audi >> 2010 >> S4 Automatic DCT >> Repair and Diagnosis >> External Pages >> Different car >> Section 1084 (Engine - 3.5L ECOBOOST (272KW/370PS)) >> Removal And Installation >> Cylinder Head LH >> Removal

Cylinder Head LH: Removal

WARNING: This page is about a different car, the 2018 Lincoln Navigator. However, it is still accessible from the selected car via links, so may be relevant.
NOTE: During engine repair procedures, cleanliness is extremely important. Any foreign material, including any material created while cleaning gasket surfaces that enters the oil passages, coolant passages or the oil pan, can cause engine failure.
  1. With the vehicle in NEUTRAL, position it on a hoist. Refer to: Jacking and Lifting .
  2. Release the fuel system pressure. Refer to: Fuel System Pressure Release .
  3. Disconnect the battery ground cable. Refer to: Battery Cables .
  4. Remove the LH turbocharger. Refer to: Turbocharger LH .
  5. Remove the LH camshaft. Refer to: Camshaft LH .
  6. Remove the fuel supply tube spring lock coupling retainers.
    GFD272270Courtesy of FORD MOTOR COMPANY
  7. Disconnect the fuel supply tube. Refer to: Spring Lock Couplings .
    GFD272271Courtesy of FORD MOTOR COMPANY
  8. Remove and discard the fuel rail-to-fuel rail high-pressure tube.
    GFD272272Courtesy of FORD MOTOR COMPANY
    • Disconnect the RH and LH port injection fuel rail electrical connectors.

    • Disconnect the RH and LH direct injection fuel rail electrical connectors.

    GFD272273Courtesy of FORD MOTOR COMPANY
    • Loosen the flare nut, remove the bolt and the high-pressure fuel tube. Discard the high-pressure fuel tube.

    GFD272274Courtesy of FORD MOTOR COMPANY
  11. Remove the fuel supply tube spring lock coupling retainer.
    GFD272275Courtesy of FORD MOTOR COMPANY
  12. Disconnect the fuel supply tube. Refer to: Spring Lock Couplings .
    GFD272276Courtesy of FORD MOTOR COMPANY
    • Position aside wire harness retainer. Remove the stud bolt and the ground wire.

    • Remove the bolt and position aside the body ground strap.

    GFD272277Courtesy of FORD MOTOR COMPANY
  14. Remove and discard the LH M6 bolt.
    GFD272278Courtesy of FORD MOTOR COMPANY
  15. NOTE: Place clean shop towels over exposed engine cavities. Carefully remove the towels so foreign material is not dropped into the engine. Any foreign material (including any material created while cleaning gasket surfaces) that enters the oil passages or the oil pan, may cause engine failure.
    NOTE: Aluminum surfaces are soft and can be scratched easily. Never place the cylinder head gasket surface, unprotected, on a bench surface
    NOTE: The cylinder head bolts must be discarded and new bolts must be installed. They are tighten-to-yield designed and cannot be reused.

    • Remove and discard the bolts from the LH cylinder head.

    • Remove the cylinder head.

    GFD272279Courtesy of FORD MOTOR COMPANY
  16. Remove and discard the LH cylinder head gasket.
    GFD272280Courtesy of FORD MOTOR COMPANY
  17. NOTE: Do not use metal scrapers, wire brushes, power abrasive discs or other abrasive means to clean the sealing surfaces. These tools cause scratches and gouges that make leak paths. Use a plastic scraping tool to remove all traces of the head gasket.
    NOTE: Observe all warnings or cautions and follow all application directions contained on the packaging.

    Make sure that the mating faces are clean and free of foreign material.

    Material: Motorcraft® Silicone Gasket Remover / ZC-30-A

    Material: Motorcraft® Metal Surface Prep Wipes / ZC-31-B

  18. Support the cylinder head on a bench with the head gasket side up. Check the cylinder head distortion and the cylinder block distortion. Refer to: Cylinder Block Distortion . Refer to: Cylinder Head Distortion .
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