wheel bolts FORD MUSTANG 2003 Repair Manual

or excessive
runout.
z Clutch disc
facing surface
hardened or
damaged.
z Flywheel
surface glazed
or damaged.
z Transmission
input shaft
eccentric or not
perpendicular.
z Clutch drag zClutch drag.
z Cable release
linkage outside
the flywheel
housing worn,
cracked, bent.
z Excessive
runout or
damaged clutch
disc.
z Clutch disc
splines rusted or
worn.
z Loose pressure
plate to flywheel
bolts. z
Go To Pinpoint Test C .
z Clutch pedal pulsation zClutch disc
damaged or
worn.
z Excessive
flywheel runout.
z Loose pressure
plate to flywheel
bolts.
z Improperly
assembled
release lever to
pivot stud. z
Go To Pinpoint Test D .
z Clutch related vibrations zEngine
component
grounding
against frame.
z Loose flywheel
bolts.
z Excessive
flywheel runout.
z Imbalanced
clutch pressure
plate.
z Accessory drive
belt loose or
damaged. z
Go To Pinpoint Test E .
z Hard shifting zManual
transmission
concern.
z Loose pressure
plate to flywheel
bolts. z
Go To Pinpoint Test F . Klj . 2 ba
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z
Excessive noise zPilot bearing
worn or
damaged.
z Excessive
crankshaft end
play. z
Go To Pinpoint Test G .
z Transmission difficult to
shift z
Lubricant. zADD or DRAIN AND
FILL with specified
lubricant.
z Internal shift
mechanism. z
CHECK the internal shift
mechanism for smooth
operation. REPAIR or
INSTALL a new
mechanism as
necessary.
z Sliding gears,
synchronizers. z
CHECK for free
movement of gears and
synchronizers. REPAIR
or INSTALL new
components as
necessary.
z Housings, shaft. zCHECK for binding
condition between the
input shaft and the
engine crankshaft pilot
bearing or bushing.
REPAIR or INSTALL
new components as
necessary. REFER to
Section 308 - 03A or
Section 308 - 03B .
z Loose pressure
plate to flywheel
bolts. z
CHECK for loose bolts
at the pressure plate.
INSTALL new
components as
necessary. REFER to
Section 308 - 01 .
z NOTE: While verifying
the condition, determine
whether the noise is gear
rollover noise, release
bearing rub or some
other transmission-
related noise. Gear
rollover noise, inherent in
manual transmissions, is
caused by the constant
mesh gears turning at the
engine idle speed while
the clutch is engaged and
the transmission is in
NEUTRAL. Release
bearing rub is sometimes
mistaken for mainshaft
bearing noise. Gear
rollover noise will
disappear when the
clutch is disengaged or
when the transmission is
engaged in gear. z
Lubricant. zADD or DRAIN AND
FILL with specified
lubricant. Klj . 3 ba
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Release bearing rub will
disappear when the
clutch is engaged. In the
event that a bearing is
damaged, the noise is
more pronounced while
engaged in gear under
load or coast than in
NEUTRAL.
Noisy in forward gears
zComponents
grounding out
on the
transmission. z
CHECK for screws,
bolts, etc., of body or
other components
grounding out.
CORRECT as
necessary.
z Components
housing bolts. z
CHECK the torque on
the transmission-to-
flywheel housing bolts
and the flywheel
housing- to-engine block
bolts. TIGHTEN the
bolts to specification.
REFER to Section 308 -
01 .
z Bearings or
gears. z
INSPECT the bearings.
INSPECT the gears and
gear teeth for wear or
damage. INSTALL new
components as
necessary. REFER to
Section 308 - 01 .
z Gears clash when
shifting from one forward
gear to another z
Pilot bearing. zCHECK for a binding
condition between the
input shaft and the
engine crankshaft pilot
bearing. INSTALL new
components as
necessary. REFER to
Section 308 - 01 .
z Gear teeth
and/or
synchronizer. z
REPAIR or INSTALL
new components as
necessary. REFER to
Section 308 - 03A or
Section 308 - 03B .
z Engine idle
speed too high. z
REFER to the
Powertrain
Control/Emissions
Diagnosis (PC/ED)
manual.
z Transmission jumps out
of gear z
Transmission
range selector
lever boot. z
INSTALL a new boot if
exceptionally stiff.
REFER to Section 308 -
03A or
Section 308 -
03B .
z Transmission-to-
engine mounting
bolts. z
TIGHTEN the bolts to
specification. Klj . 4 ba
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PINPOINT TEST C: CLUTCH DRAG loose or damaged? No
GO to
B2 .
B2 INSPECT PRESSURE PLATE BOLTS
z
Inspect the pressure plate- to-flywheel bolts.
z Are any of the pressure plate- to-flywheel bolts
loose? Yes
TIGHTEN or INSTALL new bolts.
REFER to
Section 308 - 01 . TEST the
system for normal operation.
No
GO to B3 .
B3 INSPECT PRESSURE PLATE
z
Remove the clutch pressure plate. Refer to
Section 308 - 01 .
z Inspect the clutch pressure plate. Refer to
Pressure Plate Check .
z Are any signs of damage present on the clutch
pressure plate? Yes
INSTALL a new clutch pressure plate.
REFER to
Section 308 - 01 . TEST the
system for normal operation.
No
GO to B4 .
B4 CHECK CLUTCH DISC
z
Carry out the clutch disc inspection procedure.
Refer to Disc Check .
z Is the clutch disc OK? Yes
GO to
B5 .
No
INSTALL a new clutch disc. REFER to
Section 308 - 01 . TEST the system for
normal operation. B5 INSPECT THE FLYWHEEL
z
Inspect the flywheel for damage and runout. Refer
to Flywheel Runout Check .
z Is the flywheel OK? Yes
GO to
B6 .
No
REPAIR or INSTALL a new flywheel
as necessary. REFER to Section 308 -
01 . TEST the system for normal
operation. B6 INSPECT THE INPUT SHAFT
z
INSPECT the input shaft for signs of wear or
damage.
z Are any signs of wear or damage present on
the input shaft? Yes
INSTALL a new input shaft. REFER to
Section 308
- 03A or
Section 308 - 03B .
No
VERIFY the customer concerns. GO
to Symptom Chart if necessary.
Test Step Result / Action to Take
C1 CHECK HIGH SHIFTING EFFORTS
z
Key in START position.
z Set parking brake.
z With the shift control selector in REVERSE, Yes
Clutch system OK.
No Klj . 8 ba
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PINPOINT TEST D: CLUTCH PEDAL PULSATION clutch disengaged and engine idling, move
the shift lever to a position halfway between
REVERSE and NEUTRAL.
z Slowly engage clutch. The transmission will
behave as if it is in NEUTRAL.
z Gear clash can now be heard if an attempt
is made to shift into REVERSE with the
clutch engaged. Reserve can now be
measured.
z While maintaining light pressure on the shift
selector, slowly press the clutch pedal to the
floor. The gear clash will stop and the shift
selector will slide into the REVERSE
position.
z Is there a minimum 19.05 mm (0.750 inch)
clutch pedal reserve? CHECK the clutch pressure plate and clutch
disc. INSTALL a new clutch pressure plate
or clutch disc if necessary. REFER to
Section 308
- 01 . TEST the system for
normal operation. Test Step Result / Action to Take
D1 CHECK THE CLUTCH PEDAL
PULSATION z
Key in START position.
z With the transmission in NEUTRAL,
slowly press the clutch pedal.
z Does the clutch pedal pulsate while
being pressed? Yes
GO to
D2 .
No
VERIFY customer concern. GO to Symptom Chart if necessary.
D2 INSPECT PRESSURE PLATE BOLTS
z
Inspect the pressure plate- to-flywheel
bolts.
z Are any of the pressure plate- to-
flywheel bolts loose? Yes
TIGHTEN or INSTALL new bolts. REFER to
Section 308
- 01 . TEST the system for normal
operation.
No
GO to D3 .
D3 INSPECT THE CLUTCH PRESSURE
PLATE z
Remove the clutch pressure plate.
Refer to Section 308 - 01 .
z INSPECT the clutch pressure plate for
damage. Refer to Pressure Plate Check .
z Are there any signs of damage
present on the clutch pressure plate? Yes
INSTALL a new clutch pressure plate. REFER
to
Section 308 - 01 . TEST the system for normal
operation.
No
GO to D4 .
D4 INSPECT THE CLUTCH DISC
z
Carry out the clutch disc inspection
procedure. Refer to Disc Check .
z Is the clutch disc OK? Yes
GO to
D5 .
No
INSTALL a new clutch disc. REFER to Section 308 - 01 . TEST the system for normal operation.
D5 INSPECT THE FLYWHEEL Klj . 9 ba
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stopped and the measurement taken at the downstop is the
clutch reserve.
z Is the clutch reserve less than 19 mm (0.75 inch)? Item Pedal Position
1 Gear clash begins
2 Gear clash ends
3 Clutch pedal downstop
F5 INSPECT THE RELEASE LEVER AND PIVOT STUD
z
Remove the transmission.
z Inspect the release lever and the pivot stud for wear,
damage or misalignment.
z Is the release lever or pivot stud worn, damaged or
misaligned? Yes
INSTALL a new release
lever or pivot stud as
necessary. TEST the
system for normal
operation.
No
GO to
F6 .
F6 INSPECT THE RELEASE BEARING
z
Inspect the release bearing for wear or damage. Make sure
the release lever is seated in the release bearing pocket.
z Is the release bearing worn or damaged? Yes
INSTALL a new release
bearing. TEST the system
for normal operation.
No
GO to
F7 .
F7 INSPECT THE PILOT BEARING
z
Inspect the pilot bearing for wear or damage.
z Is the pilot bearing worn or damaged? Yes
INSTALL a new pilot
bearing. TEST the system
for normal operation.
No
GO to
F8 .
F8 INSPECT THE CLUTCH PRESSURE PLATE TO FLYWHEEL
BOLTS z
Measure the clutch pressure plate to flywheel bolts.
z Is the bolt torque greater than or equal to 65 Nm (48 lb-
ft)? Yes
INSTALL a new pressure
plate and clutch disc. Note
the condition of the
removed components
(wear, damage or oil
contamination). For oil Klj . 13 ba
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SPECIFICATIONS
SECTION 308-
01: Clutch 2003 Mustang Workshop Manual General Specifications
Item Specification
Pressure Plate
Pressure plate diameter (3.8L) 280 mm (11.0 in)
Pressure plate diameter 4.6L (2V) 280 mm (11.0 in)
Pressure plate diameter 4.6L (4V) 280 mm (11.0 in)
Clutch Disc
Clutch diameter (3.8L)
280 mm (11.0 in) Number of springs:
5 plain
Color identification:
none Clutch diameter (4.6L 2V)
280 mm (11.0 in) Number of springs:
4 plain
Color identification:
none Clutch diameter (4.6L 4V)
280 mm (11.0 in) Number of springs:
5 plain
Color identification:
no paint daub Fluid and Lubricants
Motorcraft Premium Long-
Life Grease
XG -1-C or equivalent ESA-
M1C75- B
Torque Specifications Description Nm lb-
ft Pressure plate to flywheel bolt (3.8L) 33 24
Pressure plate to flywheel bolts 4.6L (2V) 45 + 60° 33 + 60°
Pressure plate-
to-flywheel bolts 4.6L (4V) 45 + 60° 33 + 60° Klj . 1 ba
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REMOVAL AND INSTALLATION
Disc and Pressure Plate —
3.8L and 4.6L (2V) Engines
1. Remove the transmission. For additional information, refer to Section 308 - 03A (T5OD) or
Section 308 - 03B (TR3650).
2. CAUTION: Loosen the bolts evenly to prevent clutch pressure plate damage.
NOTE: If the parts are to be reused, mark the clutch pressure plate and the flywheel.
Remove the bolts and remove the clutch pressure plate and the clutch disc.
Installation
NOTE: Clean the clutch pressure plate and flywheel with a commercial alcohol- based solvent so
surfaces are free from oil film.
Do not use cleaners with a petroleum base. Do not immerse the clutch pressure plate in the solvent.
1. Position the clutch disc on the flywheel. zUsing the special tool, align the clutch disc.
SECTION 308-
01: Clutch 2003 Mustang Workshop Manual Special Tool(s)
Clutch Aligner
308-
020 (T74P-7137- K)
Material Item Specification
Premium Long Life Grease
XG
-1-C ESA-
M1C75- B Klj . 1 ba
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5. Remove the two bolts and the inspection cover.
6. Remove the seven bolts and the clutch housing.
7.
CAUTION: Loosen the bolts evenly to prevent damage to the pressure plate.
NOTE: If the pressure plate is to be reused, index- mark the pressure plate to the flywheel.
Remove the six bolts and the pressure plate and disc. Klj . 2 ba
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Installation
1. NOTE: Clean the clutch pressure plate and flywheel with a commercial alcohol- based solvent
so surfaces are free from oil film. Do not use cleaners with a petroleum base.
NOTE: Before installing the transmission, the ball stud, the clutch release lever and the input
shaft must be cleaned and lubricated with grease.
To install, reverse the removal procedure.
zUsing the special tool, align the clutch disc and pressure plate to the flywheel.
2. Tighten the pressure plate bolts in two stages. zStage 1: Tighten the bolts to 45 Nm (33 lb- ft).
z Stage 2: Tighten the bolts an additional 60 degrees. Klj . 3 ba
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