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Porsche
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2008
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911 Targa 4S (997) F6-3.8L
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Repair and Diagnosis
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Engine, Cooling and Exhaust
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Engine
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Tune-up and Engine Performance Checks
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Valve Clearance
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Specifications
Valve Clearance: Specifications
Valve Clearance
This engine is equipped with hydraulic
valve clearance
compensation. No adjustment is required.