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Home >> Mercury >> 2009 >> Mariner Base, 2.5 7, AWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 19 (Engine Mechanical - 3.0L (4V)) >> In-Vehicle Repair >> Valve Spring, Retainer, and Seal >> Removal

Valve Spring, Retainer, and Seal: Removal

WARNING: This page is about a different variant/trim than selected.
  1. Remove the camshaft roller followers. For additional information, refer to CAMSHAFT ROLLER FOLLOWER .
    2. NOTE: If air pressure has forced the piston to the bottom of the cylinder, any loss of air pressure will allow the valve(s) to fall into the cylinder. A rubber band, tape or string wrapped around the end of the valve stem will prevent this from happening.
  2. Pressurize the cylinder using compressed air.
  3. Using the Valve Spring Compressor, remove the key, retainer and the valve spring.
    Fig 1: Identifying Valve Spring, Retainer And Key
    G06095597Courtesy of FORD MOTOR CO.
    4. NOTE: Camshaft removed for clarity.
    Fig 2: Locating Valve Seal
    G06095598Courtesy of FORD MOTOR CO.
  4. Remove the valve seal.
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