Express 3500 V8-6.0L VIN U (2004)
Valve Guide Seal: Service and Repair
Valve Stem Oil Seal and Valve Spring Replacement
Tools Required
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J22794 Spark Plug Port Adapter
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J38606 Valve Spring Compressor
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J42078 Valve Stem Oil Seal Installer
Removal Procedure
1. Remove the valve rocker arm.
2. Disconnect the spark plug wire at the spark plug.
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Twist each plug wire boot 1/2 turn.
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Pull only on the boot in order to remove the wire from the spark plug.
3. Important: Remove the spark plugs from the cylinder head with the engine at room temperature.
Loosen the spark plug 1 or 2 turns.
4. Brush or air blast away any dirt or debris from around the spark plug.
5. Remove the spark plug.
6. Install J22794 into the spark plug hole.
7. Attach an air hose to J22794.
8. Apply compressed air to J22794 in order to hold the valves in place.
