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Home >> Subaru >> 2008 >> Outback Base, Automatic >> Repair and Diagnosis >> Maintenance >> Procedures >> General Information >> Periodic Maintenance Services >> Spark Plug >> Replacement >> 2.5 L (Non-Turbo) Model
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2.5 L (Non-Turbo) Model

  1. Remove the intake duct and intake chamber.
  2. Remove the battery.
  3. Disconnect the spark plug cord.
  4. Remove the spark plug with a spark plug socket.
    Fig 1: Removing Spark Plug
    G04997233Courtesy of SUBARU OF AMERICA, INC.
  5. Tighten the new spark plug lightly with hand, and then secure with a spark plug socket to the specified torque.

    Recommended spark plug: 

    NGK: FR5AP-11 

    Tightening torque: 

    21 N.m (2.1 kgf-m, 15.2 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.