engine FORD MUSTANG 2003 Workshop Manual

GENERAL PROCEDURES
Camshaft —
Lobe Surface
1. Inspect camshaft lobes for pitting or damage in the contact area. Minor pitting is acceptable outside the contact area.
zIf excessive pitting or damage is present, install new components as necessary. Refer to
the appropriate section in Group 303 for the procedure.
SECTION 303-
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GENERAL PROCEDURES
Camshaft Lobe Lift
1. Use a Dial Indicator Gauge with Holding Fixture to measure camshaft intake/exhaust lobe lift. zRotate the camshaft and subtract the lowest indicator reading from the highest indicator
reading to figure the camshaft lobe lift.
z Refer to the appropriate section in Group 303 for the procedure.
SECTION 303-
00: Engine System — General Information 2003 Mustang Workshop Manual Special Tool(s)
Dial Indicator Gauge with
Holding Fixture
100-
002 (TOOL- 4201-C) or
equivalent Klj . 1 ba
12003 Mustang Workshop Manual
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GENERAL PROCEDURES
Camshaft Runout
1. NOTE: Camshaft journals must be within specifications before checking runout.
Use a Dial Indicator Gauge with Holding Fixture to measure the camshaft runout. zRotate the camshaft and subtract the lowest indicator reading from the highest indicator
reading.
z For additional information, refer to the specification chart in the appropriate engine
section.
z If out of specification, install new components as necessary. Refer to the appropriate
section in Group 303 for the procedure.
SECTION 303-
00: Engine System — General Information 2003 Mustang Workshop Manual Special Tool(s)
Dial Indicator Gauge with
Holding Fixture
100-
002 (TOOL- 4201-C) or
equivalent Klj . 1 ba
22003 Mustang Workshop Manual
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GENERAL PROCEDURES
Crankshaft Main Bearing Journal —
Diameter
1. Measure each of the crankshaft main bearing journal diameters in at least two directions. zRefer to the appropriate section in Group 303 for the procedure.
z If out of specification, install new components as necessary. Refer to the appropriate
section in Group 303 for the procedure.
SECTION 303-
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12003 Mustang Workshop Manual
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GENERAL PROCEDURES
Crankshaft Main Bearing Journal —
Taper
1. Measure each of the crankshaft main bearing journal diameters in at least two directions at each end of the main bearing journal.
zRefer to the appropriate section in Group 303 for the procedure.
z If out of specification, install new components as necessary. Refer to the appropriate
section in Group 303 for the procedure.
SECTION 303-
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12003 Mustang Workshop Manual
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GENERAL PROCEDURES
Crankshaft Main Bearing Journal —
Clearance
NOTE: Crankshaft main bearing journals must be within specifications before checking journal
clearance.
1. Remove the crankshaft main bearing caps and crankshaft main bearing.
2. Lay a piece of Plastigage across the face of each crankshaft main bearing surface.
3. NOTE: Do not turn the crankshaft while carrying out this procedure.
Install and remove the crankshaft main bearing cap.
4. Verify the crankshaft journal clearance. zRefer to the appropriate section in Group 303 for the procedure.
z If out of specification, install new components as necessary. Refer to the appropriate
section in Group 303 for the procedure.
SECTION 303-
00: Engine System — General Information 2003 Mustang Workshop Manual Special Tool(s)
Plastigage
303-
D031 (D81L-6002- B) or
equivalent Klj . 1 ba
22003 Mustang Workshop Manual
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GENERAL PROCEDURES
Crankshaft End Play
1. Measure the crankshaft end play. Use a Dial Indicator Gauge with Holding Fixture to measure crankshaft end play.
2. Position the crankshaft to the rear of the cylinder block.
3. Zero the indicator.
4. Move the crankshaft to the front of the cylinder block. Note and record the crankshaft end play. zIf crankshaft end play exceeds specifications, install a new crankshaft thrust washer
(6334) or crankshaft thrust main bearing (6337). Refer to the appropriate section in
Group 303 for the procedure.
SECTION 303-
00: Engine System — General Information 2003 Mustang Workshop Manual Special Tool(s)
Dial Indicator Gauge with
Holding Fixture
100-
002 (TOOL- 4201-C) or
equivalent Klj . 1 ba
22003 Mustang Workshop Manual
17. 11. 2011file:///C:/Ford/2000 - 2004/tsocache/SHEF_4464/S3B~us~en~ ...

GENERAL PROCEDURES
Crankshaft Runout
1. NOTE: Crankshaft main bearing journals must be within specifications before checking runout.
Use the Dial Indicator Gauge with Holding Fixture to measure the crankshaft runout. zRefer to the appropriate section in Group 303 for the procedure.
z Rotate the crankshaft and subtract the lowest dial indicator reading from the highest dial
indicator reading to figure the crankshaft runout. If it is out of specification, install new
components as necessary. Refer to the appropriate section in Group 303 for the
procedure.
SECTION 303-
00: Engine System — General Information 2003 Mustang Workshop Manual Special Tool(s)
Dial Indicator Gauge with
Holding Fixture
100-
002 (TOOL- 4201-C) or
equivalent Klj . 1 ba
22003 Mustang Workshop Manual
17. 11. 2011file:///C:/Ford/2000 - 2004/tsocache/SHEF_4464/S3B~us~en~ ...

GENERAL PROCEDURES
Crankshaft —
Connecting Rod Journal Taper, Out of Round
1. Measure the crankshaft connecting rod journal diameters in two directions perpendicular to one another at each end of the connecting rod journal. The difference in the measurements from
one end to the other is the taper. Verify measurement is within the wear limit.
zRefer to the appropriate section in Group 303 for the procedure.
z If out of specification, install new components as necessary. Refer to the appropriate
section in Group 303 for the procedure.
SECTION 303-
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GENERAL PROCEDURES
Cylinder Bore —
Taper
1. Measure the cylinder bore at the top, middle, and bottom of piston ring travel in two directions as indicated. Verify the cylinder bore is within the wear limit. The difference indicates the
cylinder bore taper. Bore the cylinder to the next oversize.
zRefer to the appropriate section in Group 303 for the procedure.
SECTION 303-
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12003 Mustang Workshop Manual
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