Valve Springs
WARNING: This page is about a different car, the 1995 Ford Windstar. However, it is still accessible from the selected car via links, so may be relevant.
- Inspect pressure of valve spring. Replace valve spring if pressure is not within specification. See VALVES & VALVE SPRINGS table under ENGINE SPECIFICATIONS.
- Check springs for squareness, stand spring on table with closed end of spring downward. Hold square against spring and rotate spring. Measure space between spring and square. See, in this article, VALVES & VALVE SPRINGS table.
- Measure valve spring installed height from cylinder head surface to underside of spring retainer. If installed height is not within specification, install a .03" (.8 mm) shim between cylinder head and valve spring to obtain correct height. See, in this article, VALVES & VALVE SPRINGS table.
CAUTION:
DO NOT
install valve spring shims unless necessary. Using more shims than required can result in spring breakage or worn camshaft lobes.
NOTE:
Lubricate all valves, valve stems and valve guides with heavy oil during installation. Use Multi-Purpose Grease (D0AZ-19584-AA) on valve tips.