Operation CHARM
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Porsche
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1999
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Boxster (986) F6-2.5L
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Repair and Diagnosis
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Engine, Cooling and Exhaust
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Engine
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Cylinder Head Assembly
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Valve Spring
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Description and Operation
Valve Spring: Description and Operation
Valves,
Valve Springs
:
The exhaust and intake valves have a shaft diameter of 6 mm.
The
valve springs
are single conical springs.