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Home >> Subaru >> 2008 >> Forester XT, Standard >> 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 set to the side.
  3. Disconnect the spark plug cord.
  4. Remove the spark plug with a plug-wrench.
    Fig 1: Removing Spark Plug With Plug-Wrench
    G04997233Courtesy of SUBARU OF AMERICA, INC.
  5. Install a new spark plug.

    Spark plug: 

    Non-turbo model 

    NGK: FR5AP-11 

    Turbo model: 

    NGK: ILFR6B 

    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 the 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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