Ok I hate to ask for help but im lost.

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  • jlevie
    R3V OG
    • Nov 2006
    • 13530

    #16
    I think you need to get the car up in the air, supported by the wheels, and have someone push/pull on the wheel while you apply an automotive stethoscope to various point on and around the rear suspension to find the source of the noise.
    The car makes it possible, but the driver makes it happen.
    Jim Levie, Huntsville, AL

    Comment

    • barry
      E30 Mastermind
      • May 2009
      • 1642

      #17
      Are your half shafts new or rebuilt? If rebuilt those large ball bearings could be defective> i had a similar problem and the large balls in the half shaft were not perfectly round and they made a poping sound on take off and cornering only one side was bad.
      Good luck
      Barry

      Comment

      • MR E30 325is
        No R3VLimiter
        • Dec 2008
        • 3299

        #18
        Are your lug nuts tight?

        If I understand what you are saying, you can push the wheel in and out?? Thats really bad. Check trailing arm bushings, and make sure the new cv axle is fully seated in the hub.
        My previous build (currently E30-less)
        http://www.r3vlimited.com/board/showthread.php?t=170390

        A 2016 Toyota Tacoma TRD 4x4 Offroad in Inferno is my newest obsession

        Comment

        • napabavarian
          E30 Modder
          • Jun 2008
          • 834

          #19
          Originally posted by MR E30 325is
          Are your lug nuts tight?

          My thought as well, sounds like something is loose.

          This place is like catholic school, 2/3 of the students smoke weed on a daily basis, but the faculty seems to convince the outside world that drugs are just in the other schools, the resident pot dealer thinks he's cool because he has the originality to call anyone he doesn't like a homosexual, and most of the little children follow him like sheep, then there's the few with brains, you hardly ever hear from them, perhaps don't even know they exist, but they get all the sh!t done.

          Comment

          • 416stroker
            R3VLimited
            • May 2008
            • 2448

            #20
            Originally posted by jlevie
            I think you need to get the car up in the air, supported by the wheels, and have someone push/pull on the wheel while you apply an automotive stethoscope to various point on and around the rear suspension to find the source of the noise.
            Ya that would help alot. The weel has no play in it when I support the cars trailing arms with jacks.

            Originally posted by barry
            Are your half shafts new or rebuilt? If rebuilt those large ball bearings could be defective> i had a similar problem and the large balls in the half shaft were not perfectly round and they made a poping sound on take off and cornering only one side was bad.
            Good luck
            Barry
            They are rebuilt. But it doesnt do it when cornering only the intial load or unload of the suspension? Once IM driving it goes away.


            Originally posted by napabavarian
            My thought as well, sounds like something is loose.
            Nothings lose If checked all of everything over and over.

            Could it just be the springs scince it has gotten cold out?
            84 318I Delphin RIP
            87 325IS delphin 24v Sold
            89 325 Alpineweiss

            Comment

            • Jean
              Moderator
              • Aug 2006
              • 18228

              #21
              Possibly binding driveshaft u-joint at the diff? I can see how that possibly do it only when the drivetrain is loaded on/off... I haven't seen if you checked that?
              Mtech1 v8 build thread - https://www.r3vlimited.com/board/sho...d.php?t=413205



              OEM v8 manual chip or dme - https://www.r3vlimited.com/board/sho....php?p=4938827

              Comment

              • 416stroker
                R3VLimited
                • May 2008
                • 2448

                #22
                Originally posted by Jean
                Possibly binding driveshaft u-joint at the diff? I can see how that possibly do it only when the drivetrain is loaded on/off... I haven't seen if you checked that?

                Ya but only at low speeds?I think it would do it when It shifts to and for sure when I shift hard. My u-joints seem fine. There serviceable maybe Ill just change them for the hell of it.
                84 318I Delphin RIP
                87 325IS delphin 24v Sold
                89 325 Alpineweiss

                Comment

                • napabavarian
                  E30 Modder
                  • Jun 2008
                  • 834

                  #23
                  Do you have an open or limited slip rear end?

                  This place is like catholic school, 2/3 of the students smoke weed on a daily basis, but the faculty seems to convince the outside world that drugs are just in the other schools, the resident pot dealer thinks he's cool because he has the originality to call anyone he doesn't like a homosexual, and most of the little children follow him like sheep, then there's the few with brains, you hardly ever hear from them, perhaps don't even know they exist, but they get all the sh!t done.

                  Comment

                  • 416stroker
                    R3VLimited
                    • May 2008
                    • 2448

                    #24
                    its a limited slip its not it
                    84 318I Delphin RIP
                    87 325IS delphin 24v Sold
                    89 325 Alpineweiss

                    Comment

                    • DJB
                      Advanced Member
                      • Oct 2005
                      • 195

                      #25
                      OK, I know this is a little bit of a thread grab...

                      Originally posted by e30trooper
                      i ve had a sould liek this for some time. Found out it was a broken rear sway bar link.( sound only happens if I drop the clutch sorta hard) I changed the rear diff fluid to 75/90 syn oil and now going very slow in 1st or 2nd with just a lil gas to make a slow turn the rear end makes a funky noise. I just hope its not the LSD going to shit or the fluid I put in is making the lsd sorta lock up. ( I have a S 2.93 lsd )
                      That noise means that your LSD is working correctly, but you used a non-LSD gear oil. Add friction modifier an ounce at a time until the noise stops.

                      GM's friction modifier has a reputation for being the best available. After all of these year there are likely others just as good, but it's not worth your time to experiment.

                      Comment

                      • 416stroker
                        R3VLimited
                        • May 2008
                        • 2448

                        #26
                        Im not using non lsd gear oil..O that wasnt directed to me lol
                        84 318I Delphin RIP
                        87 325IS delphin 24v Sold
                        89 325 Alpineweiss

                        Comment

                        • AndrewBird
                          The Mad Scientist
                          • Oct 2003
                          • 11897

                          #27
                          Is the front axle/hub nut torqued down to spec? Sounds like maybe the hub is moving a slight bit.

                          Comment

                          • 416stroker
                            R3VLimited
                            • May 2008
                            • 2448

                            #28
                            Yes I tourqed them. Ive checked it twice Ill check one more time.
                            84 318I Delphin RIP
                            87 325IS delphin 24v Sold
                            89 325 Alpineweiss

                            Comment

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