Installation Procedure

Important:  The color of the replacement seal may not be the same color as the original seal. Install the seals in their correct location based on GM part and package description. Ensure that the seal is fully seated on the valve guide.

1. Place the valve stem oil seal over the valve stem so the seal begins to contact the valve guide.

   Important:  Use hand pressure only when installing the valve seal using J 42863. Using to much force may cause damage to the oil seal and possibly lead to excessive oil consumption.

2. Using J 42863 push the valve stem oil seal over the valve guide.
   Fig 1: Push Valve Stem Oil Seal Over The Valve Guide

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3. Install the J 38606 on the valve spring.
   Fig 2: Installing J 38606

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4. Compress the valve spring using the J 38606.
   Fig 3: Compressing Valve Spring

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5. Using install the valve spring and the valve cap.
6. Install the valve keys.
7. Release the valve spring.
8. Ensure that the valve keys are seated.
9. Remove the J 38606.
   Fig 4: Remove J 38606

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10. Disconnect the air pressure, and remove the J 23590.
    Fig 5: Removing J 23590

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11. Install the spark plug.
12. Install the push rod and valve rocker arm. Refer to Valve Rocker Arm and Push Rod Replacement .