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Home >> Chevrolet >> 2006 >> Silverado 1500 HD, 4WD >> Repair and Diagnosis >> External Pages >> Different car >> Section 144 (Engine Mechanical - 4.3L) >> Repair Instructions >> Off-Vehicle Repair Instructions >> Cylinder Head Disassemble

Cylinder Head Disassemble

WARNING: This page is about a different car, the 2003 GMC Savana and 2003 Chevrolet Chevy Express. However, it is still accessible from the selected car via links, so may be relevant.

Tools Required 

J 8062  Valve Spring Compressor

WARNING: Compressed valve springs have high tension against the valve spring compressor. Valve springs that are not properly compressed by or released from the valve spring compressor can be ejected from the valve spring compressor with intense force. Use care when compressing or releasing the valve spring with the valve spring compressor and when removing or installing the valve stem keys. Failing to use care may cause personal injury.
WARNING: Wear safety glasses in order to avoid eye damage.
  1. Use the J 8062  in order to compress the valve springs.
    Fig 1: Compressing Valve Springs Using J 8062
    G02078126Courtesy of GENERAL MOTORS CORP.

    Important:  Mark, sort, and organize the components so that the components can be reinstalled in their original location and position.

  2. Remove the valve stem keys (1).
  3. Remove the J 8062  from the cylinder head.
  4. Remove the valve spring cap (2).
  5. Remove the valve spring (3).
  6. Remove the valve stem oil seal (4).
  7. Discard the valve stem oil seal.
  8. Remove the valve.
    Fig 2: Disassembling Cylinder Head
    G02078127Courtesy of GENERAL MOTORS CORP.
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