Valve Springs: Installation

All valve springs 

CAUTION: If the components are to be reinstalled, they must be installed in the same positions. Failure to follow these instructions may result in engine damage.
1. Using the special tool, install the valve spring, the valve spring retainer and the valve spring retainer keys.
Fig 1: Compressing Valve Spring With Special Tool (303-1039)
Courtesy of FORD MOTOR CO.
2. Relieve the air pressure from the cylinder.
CAUTION: If the components are to be reinstalled, they must be installed in the same positions. Failure to follow these instructions may result in engine damage.
NOTE: Do not allow the valve keepers to fall off of the valve or the valve may drop into the cylinder. If a valve drops into the cylinder, the cylinder head must be removed. For additional information, refer to Cylinder Head .
NOTE: It may be necessary to push the valve down while compressing the spring.
NOTE: Lubricate the camshaft roller followers with clean engine oil prior to installation.
3. Using the special tool, compress the valve spring and install the camshaft roller follower.
Fig 2: Identifying Special Tool (303-1039) For Removing/Installing Camshaft Roller Followers
Courtesy of FORD MOTOR CO.
4. Install the spark plug. For additional information, refer to ENGINE IGNITION - 5.4L AND 6.8L (3V) article.

LH cylinder head valve springs 

5. Install the LH valve cover. For additional information, refer to Valve Cover - LH .

RH cylinder head valve springs 

6. Install the RH valve cover. For additional information, refer to Valve Cover - RH .