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Home >> Lincoln >> 2018 >> MKZ Select, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1206 (Engine - 2.3L ECOBOOST (201KW/273PS)) >> Disassembly And Assembly Of Subassemblies >> Cylinder Head >> Disassembly

Cylinder Head: Disassembly

WARNING: This page is about a different car, the 2018 Lincoln MKC. 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.
NOTE: Aluminum surfaces are soft and can be scratched easily. Never place the cylinder head gasket surface, unprotected, on a bench surface.
NOTE: If the components are to be reinstalled, mark the location of the components removed, they must be installed in the same location.
  1. Remove the bolts and the engine lift eyes.
    GFD227857Courtesy of FORD MOTOR COMPANY
  2. Remove the bolts and the coolant outlet.
    GFD227858Courtesy of FORD MOTOR COMPANY
  3. NOTE: Use compressed air to remove any foreign material in the spark plug well before removing the spark plugs.

    Remove the spark plugs.

    GFD227866Courtesy of FORD MOTOR COMPANY
  4. Remove and discard the CHT sensor.
    GFD227859Courtesy of FORD MOTOR COMPANY
  5. NOTE: Use a small screwdriver and multi-purpose grease to remove the valve collets.

    Using the special tools, remove the valve collet, valve spring retainer and the valve spring. Use Special Service Tool: 303-300 (T87C-6565-A) Set, Valve Spring Compressor. 303-350 (T89P-6565-A) Compressor, Valve Spring. 303-472 (T94P-6565-AH) Adapter, Valve Spring Compressor. 303-1249 Valve Spring Compressor.

    Material: Motorcraft ® Multi-Purpose Grease Spray / XL-5-A (ESB-M1C93-B)

    GFD227867Courtesy of FORD MOTOR COMPANY
  6. Inspect and install new parts, as necessary.
    GFD227868Courtesy of FORD MOTOR COMPANY
  7. Using the special tools, remove the valve stem seals. Use Special Service Tool: 303-468 (T94P-6510-AH) Remover, Valve Stem Oil Seal. 307-005 (T59L-100-B) Slide Hammer.
    GFD227869Courtesy of FORD MOTOR COMPANY
  8. NOTE: Note the location of the valves if they are to be reused.

    Remove the intake and exhaust valves.

    GFD228282Courtesy of FORD MOTOR COMPANY
  9. Inspect the intake and exhaust valve guides and seats.
    GFD228283Courtesy of FORD MOTOR COMPANY
  10. NOTE: Install new parts, as necessary.

    1. Inspect the end of the stem for grooves or scoring.
    2. Inspect the valve face and the edge for pits, grooves or scores.
    3. Inspect the valve head for signs of burning, erosion, warpage and cracking.
    4. Inspect the valve margin for wear.

GFD227872Courtesy of FORD MOTOR COMPANY
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