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    clutch or transmission problems

    Aside from the fact that it doesnt go into 2nd (which im atributing to my shift linkage not being changed yet) ive been hearing a whirring noise when i put the car in neutral and release the clutch. it goes away immediately after i put the clutch in again. is this some kind of bearing?
    Im also having an issue where i sometimes put it into first and it doesnt let me until i drop to a certain speed (which is normal) but sometime it takes it and grinds into place... this also happens when im stopped, in neutral and put it into first.
    What could this be?

    #2
    the noise is a bearing. either throw out bearing or pilot bearing. the grinding could be a syncro. I know enough about transmission ploblems to stay away from them. they aren't cheap to fix. buy one that works right.

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      #3
      Id say the first is the throw out bearing. Second could be your shift linkage seeing how you cant go into second I would try and replace that first and see if it fixes the problem with your shifting.

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        #4
        Originally posted by JFM View Post
        Id say the first is the throw out bearing. Second could be your shift linkage seeing how you cant go into second I would try and replace that first and see if it fixes the problem with your shifting.
        is the throw out bearing a major issue and should i replace it asap?

        once i get the shift linkage replaced ill let you know how it shifts.
        thanks for the quick replies.

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          #5
          You will need to pull the tranny to change out the bearing. While it is out is the best time to do the shift linkage.

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            #6
            My throw out bearing was making noise for 6 years (I don't drive much) before getting progressively worse (hard to get into gear) over a few weeks then finally giving out at an inopportune time.

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              #7
              Originally posted by Blaine0002 View Post
              is the throw out bearing a major issue and should i replace it asap?

              once i get the shift linkage replaced ill let you know how it shifts.
              thanks for the quick replies.
              Yes get it out and replace it ASAP. Dont forget to grease up the new bearing or else you will get the same type of noise and the bearing will go out again fast.

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                #8
                Seems like the OP is describing input shaft bearing noise to me. The noise GOES AWAY when he depresses the clutch pedal. When you depress the clutch pedal it disconnects the input shaft from the flywheel allowing it to stop spinning. If the noise were to appear while depressing the clutch pedal one could assume a noisy throw out bearing as it is having to spin while applying force to the pressure plate springs.

                Pilot bearing issues can cause the shifting problems you're experiencing because a bad one can be grabby on the input shaft. If it is, the input shaft won't slow down quickly enough while your clutch pedal is depressed during a shift. Based on your noise issues though I'd say this isn't the case for you because like a throw out bearing it'd be more noisy with the pedal depressed. Perhaps your 1st and 2nd gear synchros are getting a little worn and need some new quality fluid like Redline MTL. In fact, maybe your tranny is low on fluid period. This would cause both bearing noise and poor synchro performance.

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                  #9
                  Originally posted by Ryann View Post
                  Seems like the OP is describing input shaft bearing noise to me. The noise GOES AWAY when he depresses the clutch pedal. When you depress the clutch pedal it disconnects the input shaft from the flywheel allowing it to stop spinning. If the noise were to appear while depressing the clutch pedal one could assume a noisy throw out bearing as it is having to spin while applying force to the pressure plate springs.

                  Pilot bearing issues can cause the shifting problems you're experiencing because a bad one can be grabby on the input shaft. If it is, the input shaft won't slow down quickly enough while your clutch pedal is depressed during a shift. Based on your noise issues though I'd say this isn't the case for you because like a throw out bearing it'd be more noisy with the pedal depressed. Perhaps your 1st and 2nd gear synchros are getting a little worn and need some new quality fluid like Redline MTL. In fact, maybe your tranny is low on fluid period. This would cause both bearing noise and poor synchro performance.
                  the noise goes away when i PRESS the clutch (not depress)

                  Comment


                    #10
                    lol

                    Definition as used above: depress- to push something down into a lower position i.e. "depress the lever"

                    Anyway, insert "press" in place of depress if you like.

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                      #11
                      Now im depressed. ha. Ryanns observations are correct, act accordingly.
                      Lorin


                      Originally posted by slammin.e28
                      The M30 is God's engine.

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                        #12
                        Originally posted by LJ851 View Post
                        Now im depressed. ha. Ryanns observations are correct, act accordingly.
                        oh i see.. i thought we were having an unthaw moment. :giggle:
                        thanks lol

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                          #13
                          Originally posted by Ryann View Post
                          Seems like the OP is describing input shaft bearing noise to me. The noise GOES AWAY when he depresses the clutch pedal. When you depress the clutch pedal it disconnects the input shaft from the flywheel allowing it to stop spinning. If the noise were to appear while depressing the clutch pedal one could assume a noisy throw out bearing as it is having to spin while applying force to the pressure plate springs.
                          .
                          Although true this is not accurate. While applying force to a TB the noise could subside. While the clutch is depressed and the TB has little to no grease on it, it will make a nasty noise. This recently happend to my friends e30 when we replaced his clutch and pressure plate and TB. friend forgot to grease the TB and the noise would only happen when the clutch wasn't engaged. Took it apart to find the TB all torn up replaced and GREASED the new TB... no more noise :)

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                            #14
                            Originally posted by JFM View Post
                            Although true this is not accurate. While applying force to a TB the noise could subside. While the clutch is depressed and the TB has little to no grease on it, it will make a nasty noise. This recently happend to my friends e30 when we replaced his clutch and pressure plate and TB. friend forgot to grease the TB and the noise would only happen when the clutch wasn't engaged. Took it apart to find the TB all torn up replaced and GREASED the new TB... no more noise :)
                            Although this is possible it is much less likely than Ryanns diag. For one you havent been able to buy a metal T/O bearing in a Long time. You arent greasing plastic ones are you? Also the OP relates a whirring noise (input bearing) as opposed to a rattling "nasty" noise that a trashed T/O bearing would make.
                            Lorin


                            Originally posted by slammin.e28
                            The M30 is God's engine.

                            Comment


                              #15
                              Originally posted by JFM View Post
                              Although true this is not accurate. While applying force to a TB the noise could subside.
                              No it couldn't. The throw out bearing is inert until force from the clutch pedal pushes it into the pressure plate. Unless it is severely mangled and destroyed, in which case the OP probably wouldn't be able to get it into gear at all.

                              Originally posted by JFM View Post
                              While the clutch is depressed and the TB has little to no grease on it, it will make a nasty noise.
                              This is exactly what I was saying above, contrary to the first part of your post. The noise is heard with the clutch pedal in a full UP position.

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