Removal And Installation

WARNING: This page is about a different car, the 2007 Ford Ranger. However, it is still accessible from the selected car via links, so may be relevant.

CAUTION: During engine repair procedures, cleanliness is extremely important. Any foreign material created while cleaning gasket surfaces that enters the oil passages, coolant passages or the oil pan, can cause engine failure.

Remove the rocker arms. For additional information, refer to Valve Train Components - Exploded View or Rocker Arm in this article.

NOTE: Install an air line with an adapter in the spark plug hole and turn on the air supply. If the air pressure fails to hold the valve(s) closed while performing the following steps, valve or valve seat damage is indicated and the cylinder head must be removed.

NOTE: Apply a minimum of 689 kPa (100 psi) of compressed air to the cylinder.

Fig 1: Removing Valve Spring Retainer Keys Using Special Tool (303-163)

Courtesy of FORD MOTOR CO.

Using the special tool, remove the valve spring retainer keys.
Remove the valve spring retainer.
Remove the valve spring and inspect. Refer to ENGINE SYSTEM - GENERAL INFORMATION article for component tests for the valve spring.
Remove the valve stem seal.

CAUTION: Do not release the compressed air from the cylinder until after the valve spring retainer keys are installed.

To install, reverse the removal procedure.