Section 03-01A: Engine, 2.3L
1993 Mustang Workshop Manual
REMOVAL AND INSTALLATION

 CAUTION: Do not oil threads that require oil resistant or water resistant sealer.

When installing nuts or bolts, oil the threads with light-weight engine oil.

Valve Spring, Retainer and Stem Seal

Tools Required:

If the valve or valve seat has not been damaged, valve spring damper assembly, valve seal and retainer may be replaced by holding the affected valve against its seat using compressed air. Use a compressed air line adapter installed in the spark plug hole. A minimum of 965 kPa (140 psi) line pressure is required. If air pressure does not hold the valve shut, the valve is damaged or burned and the cylinder head must be removed and serviced. Refer to Section 03-00.

 

Removal

  1. Remove valve rocker arm cover and associated parts as outlined.
  1. Remove cam follower as outlined.
  1. Using Valve Spring Compressor T88T-6565-BH compress the valve spring. Remove the retainer locks, spring retainer, and valve spring damper assembly. Remove and discard the stem seal.
  1. If air pressure has forced the piston to the bottom of the cylinder, any removal of air pressure will allow the valve(s) to fall into the cylinder. A rubber band, tape or string wrapped around the end of the valve stem will prevent this condition and will still allow enough travel to check the valve for binds.
  1. Inspect the valve stem for damage. Rotate the valve and check the stem tip for eccentric movement. Move the valve up and down through normal travel in the valve guide and check the stem for binds. If the valve has been damaged, it will be necessary to remove the cylinder head and service. Refer to Section 03-00.
 

Installation

  1. Place the valve stem seal over the end of the valve guide. Position the Valve Stem Seal Replacer T87L-6571-AH over the seal.







  1. Tap the Valve Stem Seal Replacer with a hammer until the seal bottoms on guide.
  1. Install the valve spring, retainer and locks. Turn off the air. Remove air line and adapter.

     CAUTION: Ensure that the affected lash adjuster has been collapsed and released before rotating the camshaft.

  1. Apply Multi-Purpose Grease D0AZ-19584-AA (ESR-M1C159-A and ESB-M1C93-A) or equivalent to all contact surfaces of the cam follower and install in position. Install spark plug.
  1. Install the rocker arm cover as outlined. Tighten rocker arm cover bolts to 7-11 Nm (62-97 lb-in).