Flexplate/Torque Converter Vibration Test

INSPECTION PROCEDURE

NOTICE: Some Engine/Transmission combinations cannot be balance in this manner, due to the limited clearances between the transmission torque converter bolts and the engine. Be sure that the bolts do not bottom out in the lug nuts, or the transmission converter cover could be dented, and cause internal damage.

1. Start the engine.
2. Place the transmission in P (Park) or N (Neutral).
3. Run the engine at idle speed.
4. Observe the vibration.
5. Shut OFF the engine.

REMOVAL PROCEDURE
1. Disconnect the negative battery cable.

CAUTION: Before removing or installing any electrical unit or when a tool or equipment could easily come in contact with "live" exposed electrical terminals, disconnect the negative battery cable to help prevent personal injury and/or damage to the vehicle or components. Unless instructed otherwise, the ignition switch must be in the "OFF" or "LOCK" position.

2. Raise the vehicle.
3. Support the vehicle with safety stands.
4. Remove the starter motor.





5. Remove the converter cover bolts.
6. Remove the converter cover.





7. Remove the torque converter to flywheel bolts. Discard the flywheel bolts.





8. Rotate the torque converter 120° (1/3 turn).

INSTALLATION PROCEDURE

NOTICE: Be sure that the bolts do not bottom out in the lug nuts, or the transmission converter cover could be dented, and cause internal damage.

Important: Hand start all torque converter to flywheel bolts before torquing. This will ensure proper alignment and avoid cross threading.

1. Install the flywheel to torque converter bolts. Use new flywheel to torque converter bolts with retaining compound removed from the first three threads of each bolt.
- Tighten the bolts to 63 Nm (46 ft. lbs.).

NOTICE: Always use the correct fastener in the proper location. When you replace a fastener, use ONLY the exact part number for that application. The manufacturer will call out those fasteners that require a replacement after removal. The manufacturer will also call out the fasteners that require thread lockers or thread sealant. UNLESS OTHERWISE SPECIFIED, do not use supplemental coatings (paints, greases, or other corrosion inhibitors) on threaded fasteners or fastener joint interfaces. Generally, such coatings adversely affect the fastener torque and joint clamping force, and may damage the fastener. When you install fasteners, use the correct tightening sequence and specifications. Following these instructions can help you avoid damage to parts and systems.

2. Install the converter cover and the bolts.
- Tighten the bolts to 10 Nm (89 inch lbs.).
3. Install the starter.
4. Lower the vehicle.
5. Connect the negative battery cable.
- Tighten the cable to 15 Nm (11 ft. lbs.).
6. Start the engine and check for vibration. Repeat this procedure until the best possible balance is obtained.