oil pressure FORD MUSTANG 2003 Service Manual

9 9278 Oil pressure sender
10 6884 Oil filter adapter
11 6A636 Oil filter adapter gasket
12 N620482 Dowel
13 87836 Plug
Item Part Number Description
1 N807198 Dowel pin (2 req'd)
2 N807309 Bolt
3 N807959 Bolt
4 18663 Heater water hose
5 W500110 Bolt (2 req'd)
6 12A699 Knock sensor (2 req'd)
7 N807309 Bolt (2 req'd)
8 18696 Heater water hose
9 7120 Pilot bearing
10 6K318 Crankshaft rear retainer
11 N806155 Bolt (6 req'd)
12 6310 Crankshaft oil slinger
13 6375 Flywheel
14 N808139 Bolt (8 req'd)
15 7550 Clutch disc
16 7563 Clutch pressure plate
17 N808969 Bolt (6 req'd)
18 6701 Crankshaft rear oil seal Klj . 14 ba
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IN-
VEHICLE REPAIR
Valve Cover LH
Removal and Installation 1. Remove the Hydro Boost brake booster. For additional information, refer to Section 206 - 07 .
2. Remove the LH ignition coils. For additional information, refer to Section 303 - 07C .
3. Disconnect the engine coolant temperature (ECT) sensor and unclip the wiring harness from the stud.
4. Unclip the wiring harness from the power steering bracket.
5. Disconnect the electrical connectors from the fuel pulse damper, EGR vacuum regulator solenoid, supercharger bypass vacuum solenoid, and the differential pressure feedback EGR
system.
SECTION 303-
01C: Engine — Cobra 4.6L (4V) 2003 Mustang Workshop Manual Material
Item Specification
Silicone Gasket and Sealant
F7AZ-
19554- EA WSE-
M4G323- A4 Metal Surface Cleaner
F4AZ-
19A536- RA WSE-
M5B392- A Klj . 1 ba
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54. Remove the nut and the wiring harness bracket.
55. Disconnect the oil pressure sender electrical connector.
56. Disconnect the generator electrical connector.
57. Remove the generator B + nut and disconnect the B + cable. Klj . 13 ba
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52. Remove the oil cooler.
53. Remove the bolts, the oil filter adapter and the gasket.
zDiscard the gasket.
54. Clean and inspect the oil filter adapter and the oil cooler. zPlug the oil cooler coolant lines.
z Flush the adapter and cooler with parts cleaner. If metal particles are present, install a
new oil filter adapter and oil cooler.
55. Remove the power steering pressure hose.
56. Remove the bolts and the power steering pump. Klj . 15 ba
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SPECIFICATIONS
SECTION 303-
01D: Engine — Mach I 4.6L (4V) 2003 Mustang Workshop Manual General Specifications
Item Specification
Metal Surface Cleaner
F4AZ-
19A536- RA WSE-
M5B392- A Silicone Gasket and Sealant F7AZ-19554-
EA WSE-
M4G323-
A4 Motorcraft Premium Gold Engine Coolant VC-7-
A (in Oregon VC-7-B) (Yellow
Color) WSS-
M97B51- A1 Pipe Sealant with Teflon® D8AZ-19554-
A WSK-
M2G350-
A2 Motorcraft MERCON® Super Premium 5W-
20 Motor Oil XO-5W20-QSP WSS-
M2C153- H Threadlock 262 E2FZ-19554-
B WSK-
M2G351-
A6
Engine Specifications Description Specification
GENERAL SPECIFICATIONS
Displacement 4.6L (4V) (281 CID)
Number of Cylinders 8
Bore and Stroke 90.2 x 90.0 mm (3.55 x 3.54 inch)
Firing Order 1-3-7-2-6-5-4-
8 Oil Pressure (HOT 1500 RPM) 138-
310 kPa Drive Belt Tension a
Combustion Chamber Volume (cc)
52.6±
0.5 cm c Valve Seats
·
Width— Intake 1.8-
2.2 mm (0.071- 0.086 inch) ·
Width— Exhaust 1.8-
2.2 mm (0.071- 0.086 inch) ·
Angle 45 degrees
·
Runout (T.I.R.) Max 0.05 mm (0.002 inch)
Valve Arrangement (Front-
to-Rear) c ·
(Left Hand) Intake: S-P-S-P-S-P-S-P
·
Exhaust: E-E-E-E-E-E-E-E
·
(Right Hand) Intake: P-S-P-S-P-S-P-S
·
Exhaust: (C) E-E-E-E-E-E-E-E
Valve Stem to Guide Clearance
·
Intake 0.020-
0.069 mm (0.00078- 0.00272 inch) ·
Exhaust 0.046-
0.095 mm (0.0018- 0.0037 inch) Klj . 1 ba
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z
are connected in series with the fuel pressure sensor.
z supply fuel from the fuel tank with a fuel pump mounted in the fuel tank.
A constant fuel pressure drop is maintained across the fuel injectors by the fuel pressure sensor. The
fuel pressure sensor:
zis positioned upstream from the fuel injectors on the fuel injection supply manifold.
Valve Train
The valve train operates as follows:
zball- tip hydraulic lash adjusters provide automatic lash adjustment.
z roller followers ride on the camshaft lobes, transferring the up-and- down motion of the
camshafts to the valves in the cylinder heads.
Positive Crankcase Ventilation System
All engines are equipped with a closed- type positive crankcase ventilation system recycling the
crankcase vapors to the upper intake manifold.
Lubrication System
The engine lubrication system operates as follows:
zoil is drawn into the oil pump through the oil pump screen cover and tube in the sump of the oil
pan.
z oil is pumped through the oil bypass filter on the left front side of the cylinder block.
z oil enters the main oil gallery where it is distributed to the crankshaft main journals and to both
cylinder heads.
z From the main journals, the oil is routed through cross- drilled passages in the crankshaft to
lubricate the connecting rod bearings. Controlled leakage through the crankshaft main bearings
and connecting rod bearings is slung radially outward to cool and lubricate the cylinder walls as
well as the entire connecting rod, piston and piston rings assembly.
z The left cylinder head is fed from a drilling into the supply passage feeding the main gallery at
the front of the cylinder block. The right cylinder head is fed from a drilling into the rear of the
main gallery. Main gallery pressure is reduced as it enters the cylinder head galleries through
fixed serviceable orifices located at the upper part of the feed passages. It is this reduced
pressure in the cylinder head galleries which feeds the camshaft journals, the hydraulic lash
adjusters and the primary and secondary timing chain tensioners.
z The camshaft lobe and roller followers are lubricated by splash created through valve train
operation.
Oil Pump
The lubrication system of the 4.6L (4V) engine is designed to provide optimum oil flow to critical
components of the engine through its entire operating range. The heart of the system is a positive
displacement internal gear oil pump using top seal rotors. Generically this design is known as a gerotor
pump, which operates as follows.
zThe oil pump is mounted on the front face of the cylinder block.
z The inner rotor is piloted on the crankshaft post and is driven through flats on the crankshaft. Klj . 2 ba
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z
System pressure is limited by an integral, internally- vented relief valve which directs the
bypassed oil back to the inlet side of the oil pump.
z Oil pump displacement has been selected to provide adequate volume to ensure correct oil
pressure both at hot idle and maximum speed.
z The relief valve calibration protects the system from excessive pressure during high viscosity
conditions.
z The relief valve is designed to provide adequate connecting rod bearing lubrication under high-
temperature and high- speed conditions.
Cooling System
The engine cooling system includes the following:
zradiator
z coolant pump
z the electric cooling fan motor and fan blade, activated by the variable control module
z the degas bottle, which aids in maintaining the correct volume of engine coolant
z thermostat
z upper radiator hose
z lower radiator hose
z heater coolant hoses
Drive Belt System
The 4.6L (4V) DOHC engine is equipped with a serpentine drive belt. To ensure maximum life, a
replacement drive belt should be of the same type as originally installed.
zThe accessories mounted on the front of the engine are belt- driven by the crankshaft.
z The serpentine drive belt is routed over each accessory pulley, driven by the crankshaft pulley
bolted to the crankshaft. For service procedures, including tensioning, refer to Section 303 - 05 . Klj . 3 ba
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9 6152 Piston ring (8 req'd)
10 6758 Crankcase vent tube and connector
11 6582 Valve cover
12 6051 Cylinder head gasket
13 W701706 Nut (8 req'd)
14 9430 Exhaust manifold
15 9448 Exhaust manifold gasket
16 W701681 Stud (8 req'd)
17 6049 Cylinder head
18 6C527 Spark plug gasket (8 req'd)
19 6200 Connecting rod (8 req'd)
20 6200 Connecting rod (8 req'd)
21 6161 Piston ring (8 req'd)
Item Part Number Description
1 8555 Coolant bypass tube
2 6750 Oil level indicator
3 6754 Oil level indicator tube
4 N806155 Bolt
5 6C358 Bolt (10 req'd)
6 6714 Oil bypass filter
7 N806156 Bolt (4 req'd)
8 9278 Oil pressure sender
9 6881 Oil filter adapter
10 6A636 Oil filter adapter gasket Klj . 12 ba
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11 N620482 Dowel
12 87836 Plug
Item Part Number Description
1 N807198 Dowel pin (2 req'd)
2 N807309 Bolt
3 N807959 Bolt
4 18663 Heater water hose
5 W500110 Bolt (2 req'd)
6 12A699 Knock sensor (2 req'd)
7 N807309 Bolt (2 req'd)
8 18696 Heater water hose
9 7120 Pilot bearing
10 6K318 Crankshaft rear retainer
11 N806155 Bolt (6 req'd)
12 6310 Crankshaft oil slinger
13 6375 Flexplate
14 N806168 Bolt (6 req'd)
15 — Flywheel
16 N808139 Bolt (8 req'd)
17 7550 Clutch disc
18 7563 Clutch pressure plate
19 N808969 Bolt (6 req'd)
20 6701 Crankshaft rear oil seal
21 N806007 Dowel pin (2 req'd) Klj . 13 ba
152003 Mustang Workshop Manual
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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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