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  4. 96 328is Passenger Rear Brake Issue

96 328is Passenger Rear Brake Issue

Scheduled Pinned Locked Moved General Technical
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  • EarlE
    EarlE
    Earl
    wrote on last edited by
    #9

    Why would I do that? The issue never changed and everything else has besides the hardlines

    museum sig 2earl.jpg

    1 Reply Last reply
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    • KaiserRollsK
      KaiserRollsK
      KaiserRolls
      wrote on last edited by
      #10

      Earl said:

      Why would I do that? The issue never changed and everything else has besides the hardlines

      So we don't mention shit you already tried

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      2
      • m42b32M
        m42b32M
        m42b32
        wrote on last edited by
        #11

        Maybe an early wheel bearing failure? Its possible to not have noise or noticeable play when rotating it on a stand, but under the weight of the car it could potentially make a faint noise and hitting the brakes could affect the sound. 

        Ooor, do you have access to one of those infrared thermometer things? You can use them to take the temperatures of each rotor after a long drive. One being hotter than the other would indicate dragging pads. 

        Just throwin' some ideas out there

        1991 318is, 1991 318i, 2022 Bronco

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        • KaiserRollsK
          KaiserRollsK
          KaiserRolls
          wrote on last edited by
          #12

          I know you replaced the wheel bearings right? That's the only thing that's changed correct? If it was at a goofy angle, could the hub be cocked causing one side of the rotor to make contact with a pad?

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          • EarlE
            EarlE
            Earl
            wrote on last edited by
            #13

            Wheel bearing is tight and was replaced in November. The noise sounds like metal being taken to a grinding stone so I am not sure what else would cause that noise when you touch the brakes lol

            museum sig 2earl.jpg

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            • KaiserRollsK
              KaiserRollsK
              KaiserRolls
              wrote on last edited by
              #14

              Maybe it's the 17x11 wheels 😃

              Any debris in the shield?

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              • straight6pwrS
                straight6pwrS
                straight6pwr
                wrote on last edited by
                #15

                shooting in the dark here, as it seems like you've eliminate almost everything to do with the brakes/rotor/ebrake/wheels/etc.

                the dust plates on the rear diff inputs/outputs can make that noise if they start rubbing on the case or something becomes lodged in them. i guess braking could cause just enough driveline movement to make the sound increase?

                Dan
                yajsYRL.jpg.e5f350b4dfe961d76ac8b32efce2e1a6.jpg

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                • EarlE
                  EarlE
                  Earl
                  wrote on last edited by
                  #16

                  KaiserRolls said:

                  Maybe it's the 17x11 wheels 😃

                  Any debris in the shield?

                  This is on stock wheels

                  museum sig 2earl.jpg

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                  • KaiserRollsK
                    KaiserRollsK
                    KaiserRolls
                    wrote on last edited by
                    #17

                    Hm

                    100% positive the hub is in perfectly

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                    • EarlE
                      EarlE
                      Earl
                      wrote on last edited by
                      #18

                      straight6pwr said:

                      shooting in the dark here, as it seems like you've eliminate almost everything to do with the brakes/rotor/ebrake/wheels/etc.

                      the dust plates on the rear diff inputs/outputs can make that noise if they start rubbing on the case or something becomes lodged in them. i guess braking could cause just enough driveline movement to make the sound increase?

                      I'll take a peek at that. I just find it odd that this happened the day I did RTABs but it has had nothing to do with anything I touched when I replaced them

                      museum sig 2earl.jpg

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                      • straight6pwrS
                        straight6pwrS
                        straight6pwr
                        wrote on last edited by
                        #19

                        well if you replaced rtabs, then the whole trailing arm could be slightly moved compared to before, what might this effect? axles/stubs/wheel bearings would be on that list.

                        Dan
                        yajsYRL.jpg.e5f350b4dfe961d76ac8b32efce2e1a6.jpg

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                        • patsbimmer1P
                          patsbimmer1P
                          patsbimmer1
                          wrote on last edited by
                          #20

                          e36.PNG.25c1bbf8562a2402c13d04c8a5c9ba1c

                          56f1a850707cde36-1.PNG.bd07d84107c39c47

                          2011 e90 M3 - DCT, Borla exhaust, BMW Performance Black Grille, ECS Painted Corners, Ziza Angel Eyes

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                          97 328i Lola - sport package, m50 intake manifold, m50 manifold.com install kit, custom CAI, K&N filter, Borla exhaust, FK silverline coilovers, 25.5mm front sway bar, Powerflex front sway bushings, Turner Radiator, fan delete *sold*
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                          "burnouts bring babes and babes dont have time for bushings" - Kaiser Rolls

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                          • EarlE
                            EarlE
                            Earl
                            wrote on last edited by
                            #21

                            straight6pwr said:

                            well if you replaced rtabs, then the whole trailing arm could be slightly moved compared to before, what might this effect? axles/stubs/wheel bearings would be on that list.

                            It's definitely a brake related issue.

                            museum sig 2earl.jpg

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                            • EarlE
                              EarlE
                              Earl
                              wrote on last edited by
                              #22

                              patsbimmer1 said:

                              e36.PNG.25c1bbf8562a2402c13d04c8a5c9ba1c

                              56f1a850707cde36-1.PNG.bd07d84107c39c47

                              The only thing it could be from that list is that the vent bore of the master is clogged.

                              museum sig 2earl.jpg

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                              • KaiserRollsK
                                KaiserRollsK
                                KaiserRolls
                                wrote on last edited by
                                #23

                                Guide pins all lubed and crap?

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                                • EarlE
                                  EarlE
                                  Earl
                                  wrote on last edited by
                                  #24

                                  Brand new caliper lol. Lubed to the T. Let's put it this way. From the hardlines to the caliper, there are no issues. 

                                  Just noticed if I lock my brakes up to stop, my caliper sticks pretty good until I start to move. Something isn't allowing the pressure to relieve normally.

                                  museum sig 2earl.jpg

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                                  • straight6pwrS
                                    straight6pwrS
                                    straight6pwr
                                    wrote on last edited by
                                    #25

                                    coincidence it started when you did your rtabs?

                                    Dan
                                    yajsYRL.jpg.e5f350b4dfe961d76ac8b32efce2e1a6.jpg

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                                    • KaiserRollsK
                                      KaiserRollsK
                                      KaiserRolls
                                      wrote on last edited by
                                      #26

                                      Anything in the union? Maybe some crap in there?

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                                      • EarlE
                                        EarlE
                                        Earl
                                        wrote on last edited by
                                        #27

                                        Going to swap out the master tomorrow and do a full fluid flush to see what happens.

                                        museum sig 2earl.jpg

                                        1 Reply Last reply
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                                        • jc43089J
                                          jc43089J
                                          jc43089
                                          wrote on last edited by
                                          #28

                                          Moving the trailing arm to do the rtabs could have dislodged a chunk of something in the brake line. Is the little hard line that is attached to the trailing arm new/clean?

                                          Sent from my 831C using Tapatalk

                                          2/94 325i Sedan, Arctic Gray: UUC LTW FW, EVO 3 and DSSR, +.020 Maxsil pistons, ASC delete, Eibach shocks/springs, 16" contour reps 238k
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