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Valve Spring Strength

SPECIAL TOOLS

Pressure Gauge, Valve/Clutch Spring
303-006 (TOOL-6513-DD) or equivalent

NOTE: Refer to the ENGINE MECHANICAL - 3.5L-GTDI or ENGINE MECHANICAL - 3.7L for the specification.

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

Fig 1: Checking Valve Spring Correct Strength
Courtesy of FORD MOTOR CO.