2003 FORD MUSTANG engine

GENERAL PROCEDURES
Camshaft End Play —
Push Rod Engines
1. Remove the valve tappets. Refer to the appropriate section in Group 303 for the procedure.
2. Use a Dial Indicator Gauge with Holding Fixture to measure camshaft end play.
3. Position the camshaft to the rear of the cylinder block.
4. Zero the indicator.
5. Move the camshaft to the front of the cylinder block. Note and record the camshaft end play. zIf the camshaft end play exceeds specifications, install a new camshaft thrust plate.
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
Camshaft End Play —
OHC Engines
1. Remove the roller followers. Refer to the appropriate section in Group 303 for the procedure.
2. Use a Dial Indicator Gauge with Holding Fixture to measure camshaft end play.
3. Position the camshaft to the rear of the cylinder head.
4. Zero the indicator.
5. Move the camshaft to the front of the cylinder head. Note and record the camshaft end play. zIf camshaft end play exceeds specifications, install new camshaft and recheck end play.
Refer to the appropriate section in Group 303 for the procedure.
z If camshaft end play exceeds specification after camshaft installation, install a new
cylinder head. 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
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-
00: Engine System — General Information 2003 Mustang Workshop Manual Klj . 1 ba
12003 Mustang Workshop Manual
17. 11. 2011file:///C:/Ford/2000 - 2004/tsocache/SHEF_4464/S3B~us~en~ ...

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
17. 11. 2011file:///C:/Ford/2000 - 2004/tsocache/SHEF_4464/S3B~us~en~ ...

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
17. 11. 2011file:///C:/Ford/2000 - 2004/tsocache/SHEF_4464/S3B~us~en~ ...

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-
00: Engine System — General Information 2003 Mustang Workshop Manual Klj . 1 ba
12003 Mustang Workshop Manual
17. 11. 2011file:///C:/Ford/2000 - 2004/tsocache/SHEF_4464/S3B~us~en~ ...

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-
00: Engine System — General Information 2003 Mustang Workshop Manual Klj . 1 ba
12003 Mustang Workshop Manual
17. 11. 2011file:///C:/Ford/2000 - 2004/tsocache/SHEF_4464/S3B~us~en~ ...

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
17. 11. 2011file:///C:/Ford/2000 - 2004/tsocache/SHEF_4464/S3B~us~en~ ...