gmc Workshop Repair Guides

GMC Workshop Service and Repair Manuals

Valve Clearance Adjustment - On Vehicle|Page 3162 > < Valve Clearance Adjustment - On Vehicle
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8. Adjust the valve lash to 0.3 mm (0.012 in). Refer to Valve Clearance Adjustment Specifications   (See: Engine, Cooling and

Exhaust/Engine/Specifications/Valve Clearance Adjustment Specifications) to determine which valves can be adjusted when the engine is at TDC.

Caution:  Refer to Fastener Caution   (See: Service Precautions/Vehicle Damage Warnings/Fastener Caution).

9. Tighten the lock nut to 22 Nm (16 lb ft).

10. Rotate the crankshaft one revolution in order to bring the number 1 cylinder to TDC of the exhaust stroke.

Valve Clearance Adjustment - On Vehicle|Page 3162 > < Valve Clearance Adjustment - On Vehicle