Explorer Sport Trac 4WD V6-4.0L VIN K Flex Fuel (2004)
Valve Spring: Service and Repair
Valve - Valve Spring
Special Tools
Removal
1. Remove the camshaft roller followers.
2. Position the piston at top dead center (TDC).
3. Remove the spark plug and apply compressed air in the cylinder to hold both valves in position.
4. CAUTION: If air pressure has forced the piston to the bottom of the cylinder, any loss of air pressure will allow the valve to fall into the cylinder.
If air pressure must be removed, support the valve prior to removal.
Using the special tool to compress the valve spring, remove the valve spring retainer keys, the valve spring and the retainer.
5. Inspect the components.
Installation