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Valve Spring Strength

Special Tools

Illustration Tool Name Tool Number
GF0000211Courtesy of FORD MOTOR CO.
 Pressure Gauge, Valve/Clutch Spring 303-006 (TOOL-6513-DD) or equivalent
NOTE: Refer to the appropriate ENGINE - 4.0L SOHC or ENGINE - 4.6L (3V) .
  1. Use the Valve/Clutch Spring Pressure Gauge to check the valve spring for correct strength at the specified valve spring length.
    2. Fig 1: Identifying Special Tool (303-006)
    GF0040879Courtesy of FORD MOTOR CO.
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