Ford Mustang (1999-2004) Service Manual: Valve Seals
Special Tool(s)
![]() |
Valve Spring Compressor 303-452 (T93P-6565-AR) |
![]() |
Valve Stem Seal Replacer 303-383 (T91P-6571-A) |
![]() |
Compressor, Valve Spring (Exhaust) 303-567 (T97P- 6565-AH) |
Material
Item | Specification |
Super Premium SAE 5W-20 Motor Oil XO-5W20-QSP | WSS-M2C153- H |
Removal and Installation
1. Remove the roller followers. For additional information, refer to Camshaft Roller Follower in this section.
2. Remove the spark plug (12405) from the applicable cylinder.
3. Position the piston (6102) of the cylinder being serviced at the bottom of the stroke.
4. CAUTION: If air pressure has forced the piston to the bottom of the cylinder, any loss of air pressure will allow the valve to fall into the cylinder. If air pressure must be removed, support the valve prior to removal.
Use compressed air in the cylinder to hold both valves in position.
5. Using the special tool, compress the valve spring (6513).
6. NOTE: Valve stem seals should be visually inspected if not installing new seals.
Remove the valve stem seals.
1. Remove the valve spring retainer keys.
2. Remove the valve spring retainers.
3. Remove the valve springs.
4. Remove the valve stem seals.
7. NOTE: Lubricate the lip of the new seal with clean engine oil prior to installation.
To install, reverse the removal procedure.
Installation
1. CAUTION: The timing chain procedures must be followed exactly or
damage to the
valve and pistons will result.
Compress the tensioner plunger, using an edge of a vise.
2. While holding the ratch ...
Hydraulic Lash Adjuster
Removal and Installation
1. Remove the roller followers. For additional information, refer to Camshaft
Roller Follower in this
section.
2. Remove the eight hydraulic lash adjusters.
3. Inspect the ...
Other materials:
Camshaft Lobe Lift
Special Tool(s)
Dial Indicator Gauge with
Holding Fixture
100-002 (TOOL-4201-C) or
equivalent
1. Use a Dial Indicator Gauge with Holding Fixture to measure camshaft
intake/exhaust lobe lift.
Rotate the camshaft and subtract the lowest ...
Child seat positioning
WARNING: Airbags can kill or injure a child in a child seat.
Never place a rear-facing child seat in front of an active airbag.
If you must use a forward-facing child seat in the front seat, move the
vehicle seat upon which the child seat is installed all th ...
Anti-Theft - Passive Anti-Theft System (PATS) (Description and Operation)
The passive anti-theft system (PATS) contains the following components:
theft indicator
encoded ignition key
transceiver module
instrument cluster
powertrain control module (PCM)
standard corporate protocol (SCP) communication network
The PATS uses rad ...