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Home >> Subaru >> 2005 >> Forester XT, Automatic >> Repair and Diagnosis >> Maintenance >> Procedures >> General Information >> Periodic Maintenance Services >> Spark Plug >> Replacement
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Spark Plug: Replacement

  1. Remove the intake duct and intake chamber.
  2. Remove the washer tank and put it aside.
  3. Disconnect the spark plug cord.
  4. Remove the spark plug with a plug-wrench.
    Fig 1: Removing Spark Plug
    G03848455Courtesy of SUBARU OF AMERICA, INC.
  5. Set the new spark plug.

    Spark plug: 

    • Non-turbo model 
      • NGK: FR5AP-11 
    • Turbo model 
      • NGK: PFR6G 

    Spark plug gap: 

    • Non-turbo model 
      • 1.0 - 1.1 mm (0.039 - 0.043 in) 
    • Turbo model 
      • 0.7 - 0.8 mm (0.028 - 0.031 in) 
  6. Tighten the spark plug lightly with hand, and then secure with a plug-wrench to the specified torque.

    Tightening torque: 

    • 21 N.m (2.14 kgf-m, 15.49 ft-lb) 
    NOTE:
    • Be sure to place the gasket between the cylinder head and spark plug.
    • If a torque wrench is not available, tighten the spark plug until gasket contacts cylinder head; then tighten further 1/4 to 1/2 turns.
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