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Drivetrain grind on braking

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    Drivetrain grind on braking

    Hello all, For a few months I have been having a really annoying drivetrain grind. (sounds like its from the driver side)

    The grind only happens when the brakes are applied, and when the engine rpm's are dropping. (it may do it while rpms are increasing, but I haven't tried)

    It will grind with or without the clutch engaged, but will do it worse if the clutch is engaged.

    It also seems very specific about the rpm's it grinds at, mainly between 1700 and 1500, and around 3000.

    It is not a prolonged grind, sort of a quick grind then it goes away.

    I can feel the grind in the clutch pedal more than the brake, but I am also pressing it all the way to the ground when this is happening where the brake pedal is not.

    Heavy and quick braking seem to reduce the grinding, and if I put the clutch in and let the engine go to idle before braking no grinding occurs at all.

    My first thought was that it was brakes, but after replacing them, I still have the same issue.

    I am doing both axles, and if I can find one that gooks good at a junk yard, the half shaft tomorrow.

    I was really hoping it was going to be the bearing in the half shaft, but it looks good to me

    Anyway any other ideas are appreciated.

    The wheel bearings were replaced with new hubs when I did the brakes, and as stated earlier the grinding existed before the brakes were switched.

    I have an lsd m2b4 transmission and am really hoping the problem does not lie with it. It shifts fine, and eveything seems to work just dandy when I am accelerating / when the rpm's are not changing and I'm not braking.

    201 Whp H22a with bolt ons, see the progress from stock f22a to now HERE

    #2
    well

    The bearing on the half shaft is definitely not as smooth as I would like it, so I think I will be looking for another one while everything is torn appart.

    I will let everyone know if that fixes it, also any other ideas are still welcome.

    201 Whp H22a with bolt ons, see the progress from stock f22a to now HERE

    Comment


      #3
      I guess wheel bearing or you didn't grease your brakes right.
      MRT
      37.5 MPG, AC on, cruising at 80.
      30.0 MPG, AC on, aggressively driving around 90.
      27.5 MPG, no AC, cruising at 90 with occasional gridlock. 40 degrees Fahrenheit

      Lots of DIY videos specifically for our car

      Get some awesome wipers! <-- It's a DIY
      Originally posted by Tippey764
      I think driving your car naked will cause the engine to overheat
      Originally posted by deevergote
      sneaky motherfucker

      Comment


        #4
        Neither of those make sense, if either were at fault the engine speed wouldn't matter.

        I. Also replaced the wheel bearings when I did my brakes, and the problem existed before that.

        201 Whp H22a with bolt ons, see the progress from stock f22a to now HERE

        Comment


          #5
          bellhousing

          Well, I think I have narrowed it down to something inside the bell housing.

          This is not what I was hoping for.

          We will see.

          201 Whp H22a with bolt ons, see the progress from stock f22a to now HERE

          Comment


            #6
            Stressful period is over, my header was rubbing my crossmember, so I did some manoeuvring and now all is good again.

            201 Whp H22a with bolt ons, see the progress from stock f22a to now HERE

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