Explorer Sport Trac 4WD V6-4.0L VIN E (2007)
Valve Spring: Service and Repair
Valve Springs
Valve Springs
Special Tools
Material
Removal and Installation
1. Remove the camshaft roller followers.
2. Position the piston of the cylinder being serviced at top dead center (TDC).
3. 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.
Hold the valves in the cylinder head.
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Remove the spark plug of the cylinder being serviced.
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Use a suitable tool to apply air pressure to the cylinder.
4. Using the special tool, remove the valve spring retainer keys, valve spring retainers and the valve springs.
5. NOTE: Lubricate the valve springs, retainers and retainer keys with clean engine oil.
To install, reverse the removal procedure.
