Operation CHARM
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Audi
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1991
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90 Quattro 20V L5-2309cc 2.3L DOHC (7A)
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Repair and Diagnosis
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Specifications
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Mechanical Specifications
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Engine
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Cylinder Head Assembly
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Valve Guide
Valve Guide
Valve guide
wear Limit (with new valve)
Intake valve
1.0 mm (0.039 in.)
Exhaust valve
1.3 mm (0.051 in.)