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A whole lot of shaking going on.

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    A whole lot of shaking going on.

    I have a problem that has me very frustrated. At 50 to 60 mph the car will shake and it seems to be coming from the drive train. This is very violent shaking. OK so flex joint or drive line is what comes to mind. But there is more. Standing still ebrake on I rev the motor up and at 3k it shakes not before or after 3k just at 3k Please help.
    Custom Made Skid Plates For Sale.
    http://www.r3vlimited.com/board/showthread.php?t=111469
    http://raceskids.com/

    #2
    50 to 60 MPH, could be tire balance.

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      #3
      I had the wheels balanced. still does it.
      Custom Made Skid Plates For Sale.
      http://www.r3vlimited.com/board/showthread.php?t=111469
      http://raceskids.com/

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        #4
        Since you can duplicate the problem with the car stationary, the drive train isn't the primary problem. It sounds to me like the engine is misfiring at higher rpm. That could be from any of a number of causes. And if the motor mounts are iffy or blown the misfires would couple a lot of vibration into the chassis.
        The car makes it possible, but the driver makes it happen.
        Jim Levie, Huntsville, AL

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          #5
          Have you put the car up on stands and done the pry bar test at suspension bushings, mounting points to look for excessive play?

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            #6
            Originally posted by jlevie View Post
            Since you can duplicate the problem with the car stationary, the drive train isn't the primary problem. It sounds to me like the engine is misfiring at higher rpm. That could be from any of a number of causes. And if the motor mounts are iffy or blown the misfires would couple a lot of vibration into the chassis.
            It is only at 3000 rpms higher its fine and lower its fine. I will check the motor mounts.
            Custom Made Skid Plates For Sale.
            http://www.r3vlimited.com/board/showthread.php?t=111469
            http://raceskids.com/

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              #7
              Originally posted by ejnight View Post
              I had the wheels balanced. still does it.
              If it wasn't done on a Hunter GSP9700, then the wheels and tires are still suspect.

              Hunter’s Road Force® Elite wheel balancer is the world's fastest diagnostic wheel balancer that quickly solves vibration issues. Learn how you can get more benefits in less time with a Hunter Road Force® Elite.


              If that machine was used, then it's definitely something else.

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                #8
                Cmon, how could it be the wheels if it happens when the car isn't moving.
                Check the motor mounts, maybe look at pullys? What was the last thing you worked on, when do you remember it happening first?
                EDIT
                Is this the turbo car?
                Yours truly,
                Rich
                sigpic
                Originally posted by Rigmaster
                you kids get off my lawn.....

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                  #9
                  Originally posted by delatlanta1281 View Post
                  Cmon, how could it be the wheels if it happens when the car isn't moving.
                  Check the motor mounts, maybe look at pullys? What was the last thing you worked on, when do you remember it happening first?
                  EDIT
                  Is this the turbo car?
                  Yes it is the Turbo car. It started one day heading to work. last thing was HIDs
                  Custom Made Skid Plates For Sale.
                  http://www.r3vlimited.com/board/showthread.php?t=111469
                  http://raceskids.com/

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                    #10
                    your passenger side motor mount probably melted from the excessive heat of the turbo exhaust system
                    R.I.P 07/01/09 - 04/23/10 :(

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                      #11
                      /\ yea

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