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Home >> Cadillac >> 2018 >> Escalade Base, 4WD >> Repair and Diagnosis >> External Pages >> Different car >> Section 2 (Engine Mechanical - 6.0L (L96)) >> Repair Instructions - On Vehicle >> Valve Stem Oil Seal And Valve Spring Replacement >> Installation Procedure

Installation Procedure

WARNING: This page is about a different car, the 2018 Chevrolet Suburban 3500 HD. However, it is still accessible from the selected car via links, so may be relevant.
    Fig 1: Identifying Valve Components
    GM480555Courtesy of GENERAL MOTORS COMPANY
  1. Install the valve stem oil seal (4).
  2. Install the valve spring (3).
  3. Install the valve spring cap (2) onto the valve spring (3), over the valve stem.
    4. Fig 2: Compressing Valve Spring (Cylinder Head Installed) Using Special Tools
    GM218211Courtesy of GENERAL MOTORS COMPANY
    CAUTION:

    Completely engage the J 38606 jaws on the valve spring. The J 38606 may slip off and scratch the valve spring. Replace the valve spring if the valve spring becomes scratched.

  4. Use the J-38606  compressor.
  5. Apply steady pressure on the valve spring cap until the valve key groves are accessible.
    6. NOTE:

    Use grease in order to hold the valve stem keys in place.

  6. Install the valve stem keys.
  7. Carefully release the valve spring pressure, making sure the valve stem keys stay in place.
    8. CAUTION:

    The valve stem keys must correctly seat in the valve spring cap. Engine damage may occur by not installing properly.

  8. Remove the J-38606  compressor.
    1. Look to ensure that the valve stem keys seat properly in the upper groove of the valve stem.
    2. Tap the end of the valve stem with a plastic faced hammer in order to seat the valve stem keys, if necessary.
    9. Fig 3: Spark Plug Port Adapter And Compressed Air Hose
    GM476770Courtesy of GENERAL MOTORS COMPANY
  9. Remove the J-22794  adapter.
  10. Install the spark plugs. Refer to Spark Plug Replacement .
  11. Install the valve rocker arms. Refer to Valve Rocker Arm and Push Rod Replacement .
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