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Home >> Ford >> 2007 >> Crown Victoria Police Interceptor >> Repair and Diagnosis >> Engine Mechanical >> Mechanical >> Engine System >> In-Vehicle Servicing >> Valve Springs >> Removal

Valve Springs: Removal

    WARNING: If equipped with fire suppression system, depower the system. For important safety warnings and procedures, refer to FIRE SUPPRESSION SYSTEM article.
  1. With the vehicle in NEUTRAL, position it on a hoist. For additional information, refer to JACKING AND LIFTING article.
  2. Remove the camshaft roller followers. For additional information, refer to Camshaft Roller Follower .
  3. Position the piston at the top of the stroke.
    4. CAUTION: Only use hand tools when removing or installing the spark plugs, damage may occur to the cylinder head or spark plug.
  4. Remove the spark plugs. For additional information, refer to ENGINE IGNITION article.
  5. Install compressed air in the cylinder to hold both valves in position.
    6. CAUTION: If air pressure has forced the piston to the bottom of the cylinder, any loss of air pressure will allow the valve to fall into the cylinder. If air pressure must be removed, support the valve prior to removal or engine damage may occur.
  6. Using the special tool, compress the valve springs.
    7. Fig 1: Compressing Valve Springs
    GF0013580Courtesy of FORD MOTOR CO.
  7. Remove the valve spring retainer keys, the valve spring retainer and the valve spring.
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