torque FORD MUSTANG 2003 Workshop Manual

DISASSEMBLY AND ASSEMBLY OF SUBASSEMBLIES
Torque Converter
1. A new or remanufactured torque converter must be installed if one or more of the following statements is true:
zA torque converter malfunction has been determined based on complete diagnostic
procedures.
z Converter stud or studs, impeller hub or bushing are damaged.
z Discoloration (due to overheating).
z The torque converter is found to be out of specification when carrying out one of the
following torque converter checks:
„One- Way Clutch Check
„ End Play Check
„ Stator to Turbine Interference Check
„ Stator to Impeller Interference Check
„ Torque Converter Leak Check
z Evidence of transmission assembly or fluid contamination due to the following
transmission or converter failure modes:
„Major metallic failure.
„ Multiple clutches or clutch plate failures.
„ Sufficient component wear which results in metallic contamination.
SECTION 307-
01: Automatic Transaxle/Transmission 2003 Mustang Workshop Manual Klj . 1 ba
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DISASSEMBLY AND ASSEMBLY OF SUBASSEMBLIES
Torque Converter Cleaning And Inspection
1. If a new torque converter is being installed, continue with Substep 2 of Step 2.
2. If a new torque converter is not being installed, the following procedures must be performed: 1. The torque converter must be thoroughly cleaned.
„Torque converters with drain plugs can be cleaned by using a suitable torque
converter/fluid cooler cleaner.
„ Torque converters without drain plugs can be cleaned by hand. Partially fill the
torque converter using only recommended transmission fluid for the applicable
transmission. Hand agitate the torque converter and then thoroughly drain the
fluid. Refill the torque converter with clean automatic transmission fluid specified
for transmission, and reinstall.
2. All in- tank and auxiliary coolers must be thoroughly cleaned by forward and backward
flushing. For additional information, refer to Transmission Fluid Cooler — Backflushing
and Cleaning in this section.
3. All cooler lines must be thoroughly cleaned by backward and forward flushing. For additional information, refer to Transmission Fluid Cooler — Backflushing and Cleaning
in this section.
4. All Cooler Bypass Valves (CBV), if equipped, must be thoroughly cleaned.
5. Carry out the Transmission Fluid Cooler Flow Test. For additional information, refer to
Transmission Fluid Cooler — Backflushing and Cleaning in this section.
6. If the transmission cooling system fails the Transmission Fluid Cooler Flow Test, a new fluid cooler, cooler bypass valve, and/or cooler lines must be installed. For additional
information, refer to Section 307 - 02 .
7. If new coolers are to be installed, use only factory approved service parts.
SECTION 307-
01: Automatic Transaxle/Transmission 2003 Mustang Workshop Manual Material
Item Specification
MERCON® V Automatic
Transmission Fluid
XT
-5-QM, XT -5-DM MERCON® V Klj . 1 ba
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DISASSEMBLY AND ASSEMBLY OF SUBASSEMBLIES
Torque Converter Flushing
NOTE:
When the transmission has been repaired for internal damage the torque converter must be
cleaned using a mechanically agitated cleaner.
1. Using a suitable torque converter/fluid cooler cleaner, clean and flush the torque converter.
2. After flushing, drain the remainder of the solvent.
3. Add 1.9 liter (2 qt.) of clean transmission fluid to the converter and agitate by hand.
4. Thoroughly drain the solution.
SECTION 307-
01: Automatic Transaxle/Transmission 2003 Mustang Workshop Manual Material
Item Specification
MERCON® V Automatic
Transmission Fluid
XT
-5-QM, XT -5-DM MERCON® V Klj . 1 ba
12003 Mustang Workshop Manual
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DISASSEMBLY AND ASSEMBLY OF SUBASSEMBLIES
Torque Converter Leak Check
1. Clean the outside surface of the torque converter.
2. Install the special tool into the converter hub.
3. WARNING: Always follow correct safety procedures while using press. Failure to
follow these instructions may result in personal injury.
Install the torque converter with the installed special tool into the arbor press.
Secure the press, apply enough force to seal the tool into the torque converter.
4. NOTE: Use clean dry shop air.
Apply air pressure to the valve on the special tool.
SECTION 307-
01: Automatic Transaxle/Transmission 2003 Mustang Workshop Manual Special Tool(s)
Leak Tester, Torque Converter
307-
421 Klj . 1 ba
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5. With air pressure applied to the valve, inspect for leaks at the converter hub, seams, drain plug
and studs. A soap bubble solution may be applied around these areas to aid in diagnosis. If a
leak is found around the drain plug, install a new drain plug and recheck the torque converter. If
any other leaks are present, install a new or remanufactured torque converter.
6. Remove the air hose. Release pressure and then slowly release the press. Remove the torque converter. Remove the special tool. Klj . 2 ba
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DISASSEMBLY AND ASSEMBLY OF SUBASSEMBLIES
Torque Converter Impeller to Pump Stator Interference
Check
1. NOTE: Front pump support may remain in front pump support and gear during this test.
Position the front pump support with the splines up.
2. Mount the torque converter on the front pump support with the splines on the one- way clutch
inner race, engaging the mating splines of the front pump support.
3. Hold the front pump support stationary and rotate the torque converter counterclockwise. zThe torque converter should rotate freely with no signs of scraping.
z If there are signs of scraping, install a new or remanufactured torque converter.
SECTION 307-
01: Automatic Transaxle/Transmission 2003 Mustang Workshop Manual Klj . 1 ba
22003 Mustang Workshop Manual
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DISASSEMBLY AND ASSEMBLY OF SUBASSEMBLIES
Torque Converter End Play Check
1. Install the special tool into the torque converter pump drive. zTighten the inner post until the tool is securely locked.
2. Install the special tool on the converter pump drive hub and zero the dial indicator.
3. Lift up on the special tool and note the dial indicator reading. zIf the reading exceeds end play limits, install a new or remanufactured torque converter.
SECTION 307-
01: Automatic Transaxle/Transmission 2003 Mustang Workshop Manual Special Tool(s)
Dial Indicator Gauge with
Holding Fixture
100-
002 (TOOL- 4201-C) or
equivalent End Play Gauge, Torque
Converter
307-
071 (T80L-7902- A) or
equivalent Torque Converter End Play Klj . 1 ba
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4. Remove the special tools. New or Rebuilt Torque Converter Used Torque Converter
0.355-
1.04 mm (0.014- 0.041 inch) Max. 0.355-
1.87 mm (0.014- 0.074 inch) Max. Klj . 2 ba
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DISASSEMBLY AND ASSEMBLY OF SUBASSEMBLIES
Torque Converter One-
Way Clutch Check
1. Install the special tool in one of the grooves in the stator thrust washer.
2. Install the special tool in the converter pump drive.
3. Use a torque wrench to turn the special tool counterclockwise while holding the special tool stationary.
zThe converter should lock up and hold torque.
z The torque converter one- way clutch should rotate freely in the clockwise direction.
z Try the clutch for lockup and hold in at least five positions.
SECTION 307-
01: Automatic Transaxle/Transmission 2003 Mustang Workshop Manual Special Tool(s)
Holding Tool, One-
Way Clutch
307- 062 (T76L-7902- C) or
equivalent Holding Tool, Torque
Converter Clutch
307-
067 (T77L-7902- R) or
equivalent Klj . 1 ba
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z
If the torque converter fails the lockup test torque, install a new or remanufactured torque
converter. Klj . 2 ba
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