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Slight resistance sand in motor?

Discussion in 'General Discussion' started by MarkRx, Feb 27, 2015.

  1. MarkRx

    Mar 9, 2014
    Likes Received:
    I'm in Kauai at the moment and did some flying out on a few hiking trails. When I got back to my hotel I noticed one of my props made a slight grinding sound and turned with a slight bit of resistance. Upon checking it looks like a small bit of sand got into the motor despite not ever crashing it. I pulled the motor and blew it out and cleaned a few specks of sand with a q tip. I popped it back in and it sounds much better. No major resistance and a barely (possible non existent) sound coming from the motor bearing. I'd like to send my phantom up, but am having second thoughts.

    Upon startup (not actual flying, just idle) all rotors spin perfectly and upon power off they all stop spinning at almost the exact same time. No indication that any motor is experiencing any more resistance then another.

    Any thoughts? Overly paranoid?
  2. Hughie

    Nov 22, 2014
    Likes Received:
    Leeds, United Kingdom
    At the end of the day, if you are going to fly it again you have two options.

    1. Fly low and near for a period until you have confidence enough to treat as serviceable.
    2. Change the motor.

    I would personally do 1, but would be checking the motor every start and stop for evidence of damage.
  3. IrishSights

    Jan 14, 2014
    Likes Received:
    Bangor, Northern Ireland, UK
    I have used an aerosol of compressed air to blow out any grit but holding the phantom upside down so any loosened grit will fall out and not just moved around insitu.
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