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IN-
VEHICLE REPAIR
Engine Front Cover
Removal
All vehicles 1. Remove the air intake scoop bracket. For additional information, refer to Section 303 - 12 .
2. Remove the RH valve cover. For additional information, refer to Valve Cover RH in this section.
3. Remove the Hydro- Boost brake booster. For additional information, refer to Section 206 - 07 .
Manual transmission vehicles
4. Remove the two clutch release cable retaining screws.
All vehicles 5. Remove the LH ignition coil cover bolts and the cover.
SECTION 303-
01D: Engine — Mach I 4.6L (4V) 2003 Mustang Workshop Manual Material
Item Specification
Metal Surface Cleaner
F4AZ-
19A536- RA or equivalent WSE-
M5B392-
A Silicone Gasket and Sealant
F7AZ-
19554- EA or equivalent WSE-
M4G323-
A4 SAE 5W-
30 Premium Synthetic
Blend Motor Oil
XO- 5W30-QSP or equivalent WSS-
M2C153-
G Klj . 1 ba
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39.
CAUTION: Do not use metal scrapers, wire brushes, power abrasive discs or other
abrasive means to clean the sealing surfaces. These tools cause scratches and gouges
which make leak paths. Use a plastic scraping tool to remove all traces of old sealant.
Remove and discard the gasket. Clean and inspect the sealing surfaces.
Installation
All vehicles 1. Position the engine front cover gasket on the engine front cover.
2. NOTE: If the engine front cover is not secured within four minutes, the sealant must be removed
and the sealing area cleaned with metal surface cleaner. Allow to dry until there is no sign of
wetness, or four minutes, whichever is longer. Failure to follow this procedure can cause future
oil leakage.
Apply the silicone gasket and sealant along the cylinder head- to-cylinder block surface and the
oil pan- to-cylinder block surface. Klj . 10 ba
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Manual transmission vehicles
36. Install the clutch release cable screws.
All vehicles 37. Install the RH valve cover. For additional information, refer to Valve Cover RH in this section.
38. Install the Hydro- Boost brake booster. For additional information, refer to Section 206 - 07 .
39. Install the air intake scoop bracket. For additional information, refer to Section 303 - 12 .
40. Fill the crankcase with clean engine oil. Klj . 20 ba
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IN-
VEHICLE REPAIR
Valve — Springs, Retainer and Valve Stem Seal
Removal 1. Remove the roller followers. For additional information, refer to Roller Followers in this section.
2. Remove the spark plugs. For additional information, refer to Section 303 - 07C .
3. Position the piston 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. SECTION 303-
01D: Engine — Mach I 4.6L (4V) 2003 Mustang Workshop Manual Special Tool(s)
Compressor, Valve Spring
303-
452 (T93P-6565- AR) Installer, Valve Stem Oil Seal
303-
383 (T91P-6571- A) Compressor, Valve Spring
303-
567 (T97P-6565- AH) Spacer, Valve Spring
Compressor
303-
382 (T91P-6565- AH) Klj . 1 ba
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IN-
VEHICLE REPAIR
Camshaft
Removal 1. Remove the roller followers. For additional information, refer to Roller Followers in this section.
2. Remove the LH timing chain for the LH side and both timing chains for the RH side. For additional information, refer to Timing Drive Components in this section.
3. Install the special tool.
4. Remove the exhaust camshaft sprocket and the intake camshaft bolt, washer and spacer.
SECTION 303-
01D: Engine — Mach I 4.6L (4V) 2003 Mustang Workshop Manual Special Tool(s)
Holding Tool, Camshaft
303-
446 (T93P-6256- AHR)
Material Item Specification
Super Premium SAE 5W-20
Engine Oil
XO- 5W20- QSP or equivalent WSS-
M2C153-
H Klj . 1 ba
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