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Home >> Lincoln >> 2004 >> LS V8-3.9L VIN A >> Repair and Diagnosis >> Engine, Cooling and Exhaust >> Engine >> Service and Repair >> General Procedures >> Valve Spring
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Valve Spring

Valve Spring Free Length





1. Measure the free length of each valve spring.

^ If out of specification, install new components as necessary.

Valve Spring Squareness





1. Measure the out-of-square on each valve spring.
^ Turn the valve spring and observe the space between the top of the valve spring and the square. Install a new valve spring if out of square.

Valve Spring Strength





Special Tool(s)





1. Use a Valve/Clutch Spring Pressure Gauge to check the valve spring for correct strength at the specified valve spring length.

^ If out of specification, install new components as necessary.