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Grinding sound on moror power up after crash?

Discussion in 'Pro/Adv Discussion' started by IceFireSoul, Aug 13, 2015.

  1. IceFireSoul

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    After a crash, that became an everyday reality - when I rotate the motors, either manually or for take off; there is a grinding sound in the motors. It disappears very soon after and is away until the phantom has stayed idle for some time - then grinding sound again.

    Is it endangering the phantom?
     
  2. robinb

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    one or all ?

    any grinding sound is not good, do the motors turn by hand freely ?

    sounds like some crud has got inside.
     
  3. Fplvert

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    Don't fly with crud in motors. You'll crash again at some point, if you do!
     
    cnynctry likes this.
  4. IceFireSoul

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    Two or three; one the most. After idle for a few hours or less; as I wither turn them on electrically; or by hand (either way); there is grinding sound - only for a few turns. Then it goes away and yes, they rotate freely. Crazy! I left it with the official Bulgarian DJI dealer and they said to just fly.

    How to clean them?
     
  5. Birds-iView

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    If you can narrow it down to one motor, take it apart and clean. I had a magnet come loose on my first phantom. That was a pain but I fixed it.
     
  6. Fplvert

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  7. louforgiveno

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    Sounds to me like bearings starting to fail.....look into replacing those....2 bearings per motor fyi.
     
  8. IceFireSoul

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    Is it expensive?
     
  9. tomtnt

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    i bet it's magnetic sand
     
  10. louforgiveno

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    They can be somewhat costly, the higher the quality the more the price will be.....if i remember right a set of ceramic bearings (8 total) "Boca Bearings" for the p2 were about $120....and a set of lower quality ones were about $40.