Operation CHARM
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Chevy Truck
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1988
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R 30 P/U 2WD V8-454 7.4L
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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 Clearance
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Valve Clearance Specifications
Valve Clearance Specifications
ROCKER ARM AND PUSHROD ADJUSTMENT
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Adjust Rocker Arm to Zero lash plus 3/4 additional turn.