Propeller Shaft: Balance
WARNING: This page is about a different car, the 2005 Jeep Liberty. However, it is still accessible from the selected car via links, so may be relevant.
| 1 - CLAMP |
| 2 - SCREWDRIVER |
NOTE:
Indexing the propeller shaft 180° relative to the yoke may eliminate some vibrations.
- Raise the vehicle.
- Clean all the foreign material from the propeller shaft and universal joints.
- Inspect propeller shaft for missing balance weights, broken welds, and bent areas.NOTE: If the propeller shaft is bent, it must be replaced.
- Inspect universal joints for wear, properly installation and correct alignment with the shaft.
- Remove wheels and tires and install wheel lug nuts to retain brake drums/rotors.
- Mark and number the shaft six inches from the pinion yoke end at four positions 90° apart.
- Run and accelerate the vehicle until vibration occurs. Note the intensity and speed the vibration occurred. Stop the engine.
- Position one screw clamp (1) on the propeller shaft with a screw driver (2). See Fig 1.
- Start the engine and check for vibration. If there is little or no change in vibration, move the clamp to the next positions. Repeat the vibration test. If there is no difference in vibration at the other positions, the source of the vibration may not be propeller shaft.
- If vibration decreased, install a second clamp and repeat the test. See Fig 2.
1 - 1/2 INCH - If the additional clamp causes an additional vibration, separate the clamps (1) (1/4 inch above and below the mark). Repeat the vibration test. See Fig 3.
- Increase distance between the clamps and repeat the test until the amount of vibration is at the lowest level. Bend the slack end of the clamps so the screws will not loosen.
- If vibration remains unacceptable, repeat the procedure to the front end of the propeller shaft.
- Install wheel and tires, and lower vehicle.