Valve Spring Strength

Fig 1: Identifying Special Tools

Courtesy of FORD MOTOR CO.

Use a Valve/Clutch Spring Pressure Gauge to check the valve spring for correct strength at the specified valve spring length.
- Refer to the appropriate ENGINE article for more information.
- If out of specification, install new components as necessary.
Fig 2: Checking Valve Spring For Correct Strength
Courtesy of FORD MOTOR CO.