Valve Spring Strength

Special Tools

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

Fig 1: Measuring Valve Spring Strength

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 article in ENGINE for the procedure.
- If out of specification, install new components as necessary. Refer to the appropriate article in ENGINE for the procedure.