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Home >> Ford >> 2006 >> Focus ZX5 SE, Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 1127 (Engine - 6.8L) >> In-Vehicle Servicing >> Valve Springs >> Removal And Installation

Removal And Installation

WARNING: This page is about a different car, the 2008 Ford Econoline, 2008 Ford E450 Super Duty, and 2008 Ford Cutaway. However, it is still accessible from the selected car via links, so may be relevant.
  1. If servicing the RH cylinder valve train components, remove the RH valve cover. For additional information, refer to Valve Cover - RH .
  2. If servicing the LH cylinder valve train components, remove the LH valve cover. For additional information, refer to Valve Cover - LH .
  3. Position the piston of the cylinder being serviced at the bottom of the stroke.
  4. Install the special tool between the valve spring coils to protect the valve stem seal from damage.
    5. Fig 1: Installing Special Tool Between Valve Spring Coils
    G03962476Courtesy of FORD MOTOR CO.
    CAUTION: The camshaft roller followers must be installed in their original locations. Record the camshaft roller follower locations. Failure to follow these instructions may result in engine damage.
    NOTE: Do not allow the valve keepers to fall off the valve or the valve may drop into the cylinder. If a valve drops into the cylinder, the cylinder head must be removed. For additional information, refer to Engine .
    NOTE: It may be necessary to push the valve down while compressing the spring.
  5. Use the special tool to compress the valve spring and remove the camshaft roller follower.
    6. Fig 2: Compressing Valve Springs Using Special Tool (303-567)
    G04612479Courtesy of FORD MOTOR CO.
  6. Remove the spark plug. For additional information, refer to ENGINE IGNITION - 4.6L (2V) AND 5.4L (2V) article or ENGINE IGNITION - 6.8L article.
  7. Use compressed air in the cylinder to hold both valves in position.
    • Apply a minimum of 965 kPa (140 psi) of compressed air into the cylinder.
    8. CAUTION: The camshaft roller followers must be installed in their original locations. Failure to follow these instructions may result in engine damage.
    NOTE: Do not allow the valve keepers to fall off the valve or the valve may drop into the cylinder. If a valve drops into the cylinder, the cylinder head must be removed. For additional information, refer to Cylinder Head .
    NOTE: It may be necessary to push the valve down while compressing the spring.
  8. Using the special tool, compress the valve spring and remove the valve spring retainer keys.
    9. Fig 3: Compressing Valve Springs Using Special Tool (303-567)
    G04612253Courtesy of FORD MOTOR CO.
  9. Remove the valve spring retainer and the valve spring.
  10. Repeat the previous 7 steps for each valve spring being serviced.
    11. NOTE: Lubricate the camshaft roller follower with clean engine oil prior to installation.
  11. To install, reverse the removal procedure.
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