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Home >> Lincoln >> 2012 >> MKZ Hybrid >> Repair and Diagnosis >> External Pages >> Different car >> Section 1612 (Engine Mechanical - 2.5L (Except Hybrid)) >> In-Vehicle Repair >> Valve Seals >> Removal

Valve Seals: Removal

WARNING: This page is about a different car, the 2012 Ford Fusion. 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. For additional information, refer to JACKING & LIFTING .
  2. Remove the camshafts. For additional information, refer to CAMSHAFTS .
  3. NOTE: If the camshafts and valve tappets are to be reused, mark the location of the valve tappets to make sure they are assembled in their original positions.
    NOTE: The number on the valve tappets only reflects the digits that follow the decimal. For example, a tappet with the number 0.650 has the thickness of 3.650 mm.
  4. Remove and inspect the valve tappets. For additional information, refer to ENGINE SYSTEM - GENERAL INFORMATION .
  5. Remove the spark plugs. For additional information, refer to ENGINE IGNITION - 2.5L .
  6. NOTE: Use compressed air at 7-10 bars (100-150 psi). Do not disconnect the compressed air from the cylinder until the valve spring, valve spring retainer and valve collet are installed. Any loss of air pressure will allow the valve to fall into the cylinder.
  7. Connect compressed air supply to the No. 1 cylinder.
  8. NOTE: Place all parts in order to one side.
  9. Apply compressed air to the cylinder and remove the valve spring.
    • Using the Valve Spring Compressors, compress the valve spring and remove the valve collet, using some grease and a small screwdriver.
    • Remove the valve spring retainer and the valve spring.
      Fig 1: Removing Valve Spring Using Valve Spring Compressors
      G08019426Courtesy of FORD MOTOR CO.
  10. Using the Valve Stem Oil Seal Remover and Slide Hammer, remove and discard the valve seal.
    Fig 2: Removing Valve Seal Using Valve Stem Oil Seal Remover And Slide Hammer
    G08019427Courtesy of FORD MOTOR CO.