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GMC
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1986
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Safari Van M V6-262 4.3L
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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
This engine uses hydraulic lifters. To properly set lifter plunger, turn rocker arm stud nut until valve lash is eliminated, then tighten one additional turn.