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Subaru
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2003
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Legacy F4-2.5L SOHC
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Repair and Diagnosis
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Powertrain Management
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Ignition System
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Spark Plug
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Adjustments
Spark Plug: Adjustments
ADJUSTMENT
Correct it if the
spark plug
gap is measured with a gap gauge, and it is necessary.
Spark plug
gap: L
1.0-1.1 mm (0.039 - 0.043 in)
NOTE:
Replace with new
spark plug
if this area is worn to "ball" (A) shape.