LEMON Manuals: Even more car manuals for everyone
Home >> Chevrolet >> 2015 >> Camaro LS, Standard Trans >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 1 (Engine Mechanical - 6.2L (L99 LS3 LSA) Or 7.0L (LS7) - Repair Instructions - On Vehicle) >> Repair Instructions - On Vehicle >> Valve Stem Oil Seal and Valve Spring Replacement >> Installation Procedure

Installation Procedure

WARNING: This page is about a different variant/trim than selected.
    Fig 1: Valve Stem Keys, Spring, Cap & Shim
    GM1503529Courtesy of GENERAL MOTORS COMPANY
  1. Clean the cylinder head valve spring seat and/or shim area.
  2. Install the valve stem oil seal and shim (2).
    3. IMPORTANT:

    The valve stem oil seal alignment and position on the valve guide is critical.

    An improperly installed valve stem oil seal may lead to excessive oil consumption, and increased vehicle emissions .

  3. Install the valve stem oil seal onto the guide.
    1. Lubricate the valve guide and valve stem oil seal with clean engine oil.
    2. Install the valve stem oil seal onto the valve stem. Push the seal down until the seal contacts the valve guide.
    4. Fig 2: Compressing Valve Spring (Cylinder Head Installed) Using Special Tools
    GM218211Courtesy of GENERAL MOTORS COMPANY
  4. Install the valve spring to the J 38606  valve spring compressor.
  5. Compress the valve spring using the J 38606  valve spring compressor.
  6. Install the valve spring to the cylinder head.
    7. Fig 3: Valve Stem Keys, Spring, Cap & Shim
    GM1503529Courtesy of GENERAL MOTORS COMPANY
  7. Install the valve spring cap (2).
  8. Install the valve stem keys (1).
    1. Use grease to hold the keys (2) in place and remove J 38606  valve spring compressor.
    2. Make sure the keys (2) seat properly in the groove of the valve stem.
    3. Carefully release the valve spring pressure, making sure the valve keys stay in place.
    4. Remove the J 38606  valve spring compressor.
    5. Tap the end to the valve stem with a plastic faced hammer to seat the keys, if necessary.
    9. Fig 4: Compressed Air Adapter Hose
    GM353918Courtesy of GENERAL MOTORS COMPANY
  9. Disconnect and remove the air supply from the J 22794  spark plug port adapter.
  10. Remove the J 22794  spark plug port adapter from the spark plug hole.
    11. Fig 5: Measuring Valve Spring Installed Height
    GM64315Courtesy of GENERAL MOTORS COMPANY
  11. Measure the valve spring installed height using a ruler.

    Measure from the base of the valve spring to the top of the valve spring.

    • If the installed height exceeds 46.25 mm (1.82 in), install a valve spring shim of approximately 0.5 mm (0.02 in) thick.
    • Do not shim the valve spring to obtain less than the specified height.

      Do not assemble the components without a spring shim on the cylinder head.

  12. Remove the air hose from the J 22794  spark plug port adapter.
    13. Fig 6: View Of Spark Plug And Sparkplug Seat
    GM14824Courtesy of GENERAL MOTORS COMPANY
  13. Install the spark plug. Refer to Spark Plug Replacement (Except LS7)Spark Plug Replacement (LS7) .
  14. Install the valve rocker arms. Refer to Valve Rocker Arm and Push Rod Replacement .
scientia non olet · About LEMON Manuals