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Home >> GMC >> 2003 >> Safari Van Cargo, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 457 (Engine Mechanical - 6.6L V8 Diesel) >> Removal & Installation >> Valve Rocker Arm, Shaft & Push Rod >> Removal

Valve Rocker Arm, Shaft & Push Rod: Removal

WARNING: This page is about a different car, the 2003 GMC Sierra, 2003 GMC Cab & Chassis Sierra, 2003 Chevrolet Silverado, and 2003 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
  1. Remove lower valve rocker arm covers. See VALVE ROCKER ARM COVERS . Loosen valve clearance lock nuts on each rocker arm. Loosen valve clearance adjusting screw on each rocker arm to relieve tension on valve train.
    2. NOTE: The valve rocker arm bolts retain rocker arms on shaft. Do not remove bolts from rocker arm shaft brackets.
  2. Loosen rocker arm shaft assembly bolts in proper sequence. Leave bolts in rocker arm shaft brackets. Remove rocker arm shaft assembly from cylinder head.
  3. Remove valve bridge pins. Remove valve bridges. Remove valve push rods. Clean all parts in a suitable cleaning solvent.
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