Operation CHARM
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Subaru
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1998
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Forester L F4-2.5L DOHC
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Repair and Diagnosis
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Powertrain Management
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Tune-up and Engine Performance Checks
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Spark Plug
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Specifications
Spark Plug: Specifications
Service Specifications
Spark Plug Gap
0.039-0.043 in (1.0-1.1mm)
Spark Plug Torque
13-17 ft lb