Help identify the mystery noise...

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  • gazellebeigem3
    No R3VLimiter
    • Jun 2005
    • 3712
    #1

    Help identify the mystery noise...

    Firstly, my car is a 24v swap, but im using the getrag 260. Im using e36 flywheel/clutch/starter/etc. All of the parts are new, including the clutch slave.

    The noise occurs when the car is in neutral idling. If i push in the clutch pedal, the noise goes away. It sounds like a jar of marbles. Sometimes, when i let the clutch out slowly, its not very loud. Im at my wits end with this. I have replaced damn near everything. Any help would be AMAZING.
    Tags: None
    • B0ND
      Member
      • Aug 2006
      • 94
      #2
      I just noticed a very similar noise in my car, I have an m20b25 though. When in neutral with the clutch pedal out, there is a sound similar to marbles like you describe. However when I push in the clutch pedal the noise goes away. Sorry, I realize this doesn't help you, I'm just wondering what is causing this noise too.

        Comment

        • Charlie
          kid tested, administrator approved
          • Oct 2003
          • 6686
          #3
          Throwout bearing?

          -Charlie
          Swing wild, brake later, don't apologize.
          '89 324d, '76 02, '98 318ti, '03 Z4, '07 MCS, '07 F800s - Bonafide BMW elitist prick.
          FYYFF

            Comment

            • rcko
              Wrencher
              • Mar 2007
              • 295
              #4
              Throwout bearing fork resting on the shaft?
              sigpic
              - 0.05s and 0.1s FTW!!!

                Comment

                • gazellebeigem3
                  No R3VLimiter
                  • Jun 2005
                  • 3712
                  #5
                  Throwout bearing is brand new, also the second one.

                    Comment

                    • gazellebeigem3
                      No R3VLimiter
                      • Jun 2005
                      • 3712
                      #6
                      shhhhhhiiiiiiiiiiitttttttttttttttttttttttttttttttt tttttttt

                      I think i know what the issue is. When i was ordering parts for my car, i ordered a pilot bearing for the s50, not the m20. That would make sense as far as when the noise occurs.

                        Comment

                        • jlevie
                          R3V OG
                          • Nov 2006
                          • 13530
                          #7
                          While the noise could be from the throwout of pilot bearing, that would be unlikely with new parts. A more credible cause would be rattle of the transmission input shaft. Unless really bad that's not harmful.
                          The car makes it possible, but the driver makes it happen.
                          Jim Levie, Huntsville, AL

                            Comment

                            • nando
                              Moderator
                              • Nov 2003
                              • 34827
                              #8
                              it's called the getrag rattle... even if you completely rebuilt the transmission, it's not gauranteed to go away. lightweight flywheels make it worse.
                              Build thread

                              Bimmerlabs

                                Comment

                                • gazellebeigem3
                                  No R3VLimiter
                                  • Jun 2005
                                  • 3712
                                  #9
                                  Yeah, though the pilot bearing for the s50 measures 15x32x10mm and the
                                  the m20 pilot bearing measures: 12x32x10mm, meaning my input shaft is just flopping around in there like a donkey dick. If its fixed by this hooray, if not at least the bearing is correct, though i am extremely confident that this is the source of the noise.

                                    Comment

                                    • PeaveyBassist
                                      No R3VLimiter
                                      • Sep 2004
                                      • 3511
                                      #10
                                      Input shaft bearing on the 260 is the most likely culprit. The pilot bearing is worth a try if you're willing to take the trans out though.

                                      Will
                                      RIP e30 (brilliantrot '91 325i) 11/17/06 Byebye: 8/21/07
                                      Welcome e30 (brilliantrot '90 325is) 12/23/06
                                      DaveCN = Old Man
                                      My signature picture was taken by ME! Not by anyone else!



                                      Originally posted by george graves
                                      If people keep quoting me in their sig, I'm going to burn this motherfucker down.

                                        Comment

                                        • drift
                                          E30 Addict
                                          • Jul 2007
                                          • 566
                                          #11
                                          i'm sure thats the input shaft bearing.
                                          http://www.kingofeurope.net/2010/

                                            Comment

                                            • payney8
                                              E30 Modder
                                              • Jun 2007
                                              • 899
                                              #12
                                              its dirt. I have the same thing took it all apart made sure every surface around the throwout bearing was clean and it dissappeared

                                                Comment

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