gmc Workshop Repair Guides

GMC Workshop Service and Repair Manuals

Valve Clearance|Specifications|Page 2811 > < Valve Clearance|Specifications
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Valve Clearance: Adjustments

VALVE ADJUSTMENT

The 4.3L engine has screw-in rocker arm studs with positive stop shoulders. No valve adjustment is necessary. When the valve train requires service,
tighten the rocker arm nuts to 27 Nm (20 ft. lb.).

Valve Clearance|Specifications|Page 2811 > < Valve Clearance|Specifications