engine FORD MUSTANG 2003 Workshop Manual

IN-
VEHICLE REPAIR
Crankshaft Front Oil Seal
Removal 1. Remove the crankshaft pulley. For additional information, refer to Crankshaft Pulley in this
section. 2. Using the special tool, remove the crankshaft front oil seal. SECTION 303-
01D: Engine — Mach I 4.6L (4V) 2003 Mustang Workshop Manual Special Tool(s)
Crankshaft Seal
Installer/Aligner
303-
335 (T88T-6701- A) Front Cover Seal Remover
303-
107 (T74P-6700- A) Crankshaft Seal Installer
303-
635 Crankshaft Damper Replacer
303-
102 (T74P-6316- B)
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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Installation
1. Lubricate the engine front cover and the crankshaft front oil seal inner lip with clean engine oil.
2. Using the special tools, install the crankshaft front oil seal into the engine front cover.
3. Install the crankshaft pulley. For additional information, refer to Crankshaft Pulley . Klj . 2 ba
32003 Mustang Workshop Manual
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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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35. Remove the three bolts and position the power steering reservoir and bracket assembly aside.
36. Disconnect the camshaft position (CMP) sensor electrical connector.
37. Remove the idler pulleys.
38. Remove the bolts and the studs and remove the engine front cover. Klj . 9 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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3. Install the engine front cover and tighten the bolts and studs in sequence shown.
Item Part
Number Description
1 N806177 Bolt, Hex Flange Head Pilot, M8 x 1.25 x 53
2 N806177 Bolt, Hex Flange Head Pilot, M8 x 1.25 x 53
3 N806177 Bolt, Hex Flange Head Pilot, M8 x 1.25 x 53
4 N806177 Bolt, Hex Flange Head Pilot, M8 x 1.25 x 53
5 N806177 Bolt, Hex Flange Head Pilot, M8 x 1.25 x 53
6 W706508 Stud, Hex Shldr Pilot, M8 x 1.25 x 50 —
M6 x 1 x
10 7 N808586 Stud and Washer, Hex-
Head Pilot, M8 x 1.25 x 60
— M6 x 1 x 26 8 N806177 Bolt, Hex Flange Head Pilot, M8 x 1.25 x 53
9 N806177 Bolt, Hex Flange Head Pilot, M8 x 1.25 x 53
10 N806177 Bolt, Hex Flange Head Pilot, M8 x 1.25 x 53
11 N806300 Stud, Hex Shldr Pilot, M8 x 1.25 x 65 —
M8 x 1.25
x 26 12 W706560 Stud, Hex Head Pilot, M8 x 1.25 x 65 —
M8 x Klj . 11 ba
212003 Mustang Workshop Manual
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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
Timing Drive Components
Removal CAUTION: Since the engine is not free- wheeling, if the crankshaft or the camshafts are
moved in any manner during removal and installation, the crankshaft and the camshafts must
be re- synchronized.
1. Remove the engine front cover. For additional information, refer to Engine Front Cover in this
section.
2. Remove the crankshaft sensor ring from the crankshaft.
3. CAUTION: Unless otherwise instructed, at no time when the timing chains are
removed and the cylinder heads are installed is the crankshaft or the camshaft to be
rotated. Severe piston and valve damage will occur.
Using the special tool, position the crankshaft as shown.
SECTION 303-
01D: Engine — Mach I 4.6L (4V) 2003 Mustang Workshop Manual Special Tool(s)
Holding Tool, Crankshaft
303-
448 (T93P-6303- A) Klj . 1 ba
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11.
NOTE: LH shown; RH similar.
Position the tensioner arms and tensioners, and install the bolts.
12. Remove the retaining clips from the timing chain tensioners.
13. Position the crankshaft sensor ring on the crankshaft.
14. Install the engine front cover. For additional information, refer to Engine Front Cover in this
section. Klj . 6 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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