OEM 2006 Lincoln LS Drive Shaft

2006 Lincoln LS Drive Shaft Parts Questions & Experts Answers

• Q: How Can Drive Shaft Runout and Balancing Be Effectively Serviced and Repaired on 2006 Lincoln LS?

  A: The first step of driveshaft servicing and repair begins with placing the vehicle in NEUTRAL position on a hoist while removing the bolts from the heat shield then securing this component away from the driveshaft for safety when balancing. After removing the rear wheel and tire combination install the wheels correctly with tight wheelnuts so the nuts stay secure. The hood should be opened for cooling purposes while a helper takes over the driver seat and shuts off traction control systems when present. The balancing operation should be taken at a maximum speed of 70 mph since the assistant needs time to reach the speed when the imbalance becomes easy to detect. A suitable marker inside a 305 mm (12 inch) long piece of plastic pipe should be used to make light contact with the driveshaft for marking the heavy side with protection against moving parts and hot exhaust components. Check the mark left by the assistant after engine shutdown and shut-off because any visible partial mark indicates an unbalanced condition. An imbalance exists in the driveshaft when technicians must install the 1.23-gram (red) weighted nut on the bolt that faces the opposite side of the mark in the flex coupling which functions as the light side of the driveshaft. The marking procedure should be repeated for a 360-degree outcome when all components need to be reinstalled before conducting a vehicle road test. The marking process should be repeated after installing a 2.75-gram (silver) weighted nut instead of the 1.23-gram (red) weighted nut if vibration continues to exist. The installation of all components needs to occur after marking at 360 degrees followed by a vehicle road test. Moving the weighted nut to adjacent bolts for repeated marking tests should be done if this new mark shows vibration reduction. A new driveshaft assembly installation must be performed along with retesting when the best condition is reached during these steps while reinstalling all vehicle components before performing road tests.