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Losing Hope; Please help me figure out where this noise is coming from!

Discussion in 'Kraton' started by TalionSWB, Mar 12, 2018.

  1. TalionSWB

    TalionSWB Well-Known Member

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    I had this noise coming out of my truck for the past few months now and Im losing hope I'll ever be able to figure it out. It all started when i installed the Leopard 4092 2050kv motor and ran it on 6s

    What Ive done so far:

    1. disassembled and checked all 3 diffs

    2. checked front and rear outer input spur gears and replaced rear one which had missing teeth and shimmed both outside the diff case aswell

    Result: the noise wont go away!




    If you have any ideas what it could be please help!
     
    #1 TalionSWB, Mar 12, 2018
    Last edited: Mar 12, 2018
  2. Mongoose

    Mongoose Well-Known Member

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    Have you listened to the motor specifically? Could it be the motor bearings?
     
  3. slick2500

    slick2500 Premium Member!
    Premium Member ArrmaForum Fan Excellence Award

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    It sounds just like mine with blown out diffs.
     
    10pas2 likes this.
  4. typhon34

    typhon34 Well-Known Member

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    How many shims did you put in the diffs?
    Could be too tight?
    And are they the correct crown gears? Ive seen typhon crown gears put in kratons buy mistake before.
     
  5. Megasty

    Megasty Premium Member!
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    Take the pinion off the motor & run it. It sounds like both bearings are bad.
     
  6. TalionSWB

    TalionSWB Well-Known Member

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    I have pulled the motor away from the spur gear and ran it but it sounds normal?
     
  7. TalionSWB

    TalionSWB Well-Known Member

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    That's the thing, Ive pulled out and disassembled all 3 diffs and theyre in perfectly good condition! Thats whats baffling me
     
  8. TalionSWB

    TalionSWB Well-Known Member

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    I haven't put shims inside the diffs just shimmed the front and rear external input spur gears and the noise started before I shimmed the geras
     
  9. TalionSWB

    TalionSWB Well-Known Member

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    Ok I'll try that tonight, hopefully its something i can find
     
    Marcus terry likes this.
  10. Marcus terry

    Marcus terry Well-Known Member

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    Let me know because im having the same issue ove dissassembled all 3 diffs and tgey look fine.....
     
  11. TalionSWB

    TalionSWB Well-Known Member

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    Ive disassembled and reassembled all 3 on my truck so many times im sick of it. Im going to disassmbled and inspect one more time before i get intouch with Arrma customer services
     
    Marcus terry likes this.
  12. hobo

    hobo Member

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    check your crown and diff pinion gear for teeth worn or missing
     
    Marcus terry likes this.
  13. Marcus terry

    Marcus terry Well-Known Member

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    Yep worn teeth on centre planetary
     
  14. Marcus terry

    Marcus terry Well-Known Member

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    It looks so slightly damaged but you can tell one on the right is wore. I just swapped them Round and it seems to took the noise away for now
     

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    #14 Marcus terry, Mar 14, 2018
    Last edited: Mar 14, 2018
    greatdividers likes this.
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