Driveshaft unbalanced

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  • ccarlozz
    Noobie
    • Oct 2012
    • 32

    #1

    Driveshaft unbalanced

    Removed the driveshaft to work on subframe. Reinstalled and now there is a significant vibration. I'm thinking the driveshaft is unbalanced. What end will I need to adjust? The guibo side, at the diff or both? Also how can I tell when it is installed correctly? Trial and error by starting the car each time?

    Thanks.
  • jlevie
    R3V OG
    • Nov 2006
    • 13530

    #2
    There should be a paint mark on each half of the drive shaft at the join. Match the marks and the drive shaft will be in balance.
    The car makes it possible, but the driver makes it happen.
    Jim Levie, Huntsville, AL

    Comment

    • ccarlozz
      Noobie
      • Oct 2012
      • 32

      #3
      Originally posted by jlevie
      There should be a paint mark on each half of the drive shaft at the join. Match the marks and the drive shaft will be in balance.
      Thanks so much. I'll give it a try tomorrow. Your posts have been helpful on more than one occasion!

      Comment

      • DesertBMW
        E30 Enthusiast
        • Aug 2011
        • 1011

        #4
        Originally posted by ccarlozz
        Removed the driveshaft to work on subframe.

        Thanks.
        What did you do to subframe?

        Comment

        • ccarlozz
          Noobie
          • Oct 2012
          • 32

          #5
          Originally posted by DesertBMW
          What did you do to subframe?
          Dropped it to install subframe bushings, rtabs, and springs.

          Comment

          • DesertBMW
            E30 Enthusiast
            • Aug 2011
            • 1011

            #6
            Originally posted by ccarlozz
            Dropped it to install subframe bushings, rtabs, and springs.
            if you installed heavier duty bushings more vibrations would be transferred to the chassis.

            Comment

            • ccarlozz
              Noobie
              • Oct 2012
              • 32

              #7
              Originally posted by DesertBMW
              if you installed heavier duty bushings more vibrations would be transferred to the chassis.
              Understood. It actually turned out that the CSB mount was loose. Tightened it up and now there is no more vibration.

              Thanks again.

              Comment

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