this can't be good

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  • dasboata
    Fast Electric Addict!
    • Dec 2010
    • 3152

    #1

    this can't be good

    The rotor must have been hitting the winding, It still runs, I guess, I should plan on getting another one. How do I check for shorts I did check the resistance between leads looked about the same ??Comments please thanks chris
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  • kfxguy
    Fast Electric Addict!
    • Oct 2013
    • 8746

    #2
    What's the rotor look like? Magnets started seperating?
    32" carbon rivercat single 4s 102mph, 27” mini Rivercat 92mph, kbb34 91mph, jessej micro cat(too fast) was

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    • Alexgar
      Fast Electric Addict!
      • Aug 2009
      • 3534

      #3
      what about the bearings

      Comment

      • dasboata
        Fast Electric Addict!
        • Dec 2010
        • 3152

        #4
        Originally posted by kfxguy
        What's the rotor look like? Magnets started seperating?
        Originally posted by Alexgar
        what about the bearings
        Every thing looks fine bearings are smooth the motor has about 10 min on it ??? I test it out again works fine !!!

        Comment

        • tlandauer
          Fast Electric Addict!
          • Apr 2011
          • 5666

          #5
          There is a dent on the motor can, has it been dropped? Are there any chipped away lacquer on the windings or it just looks suspicious? Hard to tell from the reflections on the pics.
          Too many boats, not enough time...

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          • dasboata
            Fast Electric Addict!
            • Dec 2010
            • 3152

            #6
            Originally posted by tlandauer
            There is a dent on the motor can, has it been dropped? Are there any chipped away lacquer on the windings or it just looks suspicious? Hard to tell from the reflections on the pics.
            no dents !! no chips just some scuff marks from rubbing the lacquer is rubbed off

            Comment

            • tlandauer
              Fast Electric Addict!
              • Apr 2011
              • 5666

              #7
              Sorry, must be the mark where the cooler O ring was, I am no expert. The motor that was brand new and burned had a smell before that happened, if everything checks out OK now, my $.02 is to pay attention to any unusual odor.
              Sorry, didn't mean to jump in here and offer BS response, I was just curious on that mark on the motor can.
              Cheers!
              Too many boats, not enough time...

              Comment

              • dasboata
                Fast Electric Addict!
                • Dec 2010
                • 3152

                #8
                No Need to be sorry at all !! I welcome comments

                Comment

                • kfxguy
                  Fast Electric Addict!
                  • Oct 2013
                  • 8746

                  #9
                  It looks like to me the there was some excess epoxy or lacquer inbetween the rotor and widens. I'm looking at the pics on my phone so I may be wrong. If this is the case you need to get a small flap wheel or cross buff and clean it out so the rotor doesn't contact it.
                  32" carbon rivercat single 4s 102mph, 27” mini Rivercat 92mph, kbb34 91mph, jessej micro cat(too fast) was

                  Comment

                  • kingwrench
                    Senior Member
                    • Sep 2011
                    • 193

                    #10
                    Chris buy a NEU and never worry about it again
                    Originally posted by dasboata
                    The rotor must have been hitting the winding, It still runs, I guess, I should plan on getting another one. How do I check for shorts I did check the resistance between leads looked about the same ??Comments please thanks chris
                    Top Gun 2011, "current problem" 88MPH. Top Gun 2014 "Marine One" 99 MPH. bet speed to date 125 MPH

                    Comment

                    • Rocstar
                      Joel Mertz
                      • Jun 2012
                      • 1509

                      #11
                      Is the rotor making contact with the windings? This looks like it's just the nature of the beast with some budget motors. I've seen windings look like this on Tacon and a couple TP motors before. Poor quality control. If the rotor shows no sign of contact, and it's not running excessively hot, I would leave it alone and run it. If it is rubbing, that's a different story.
                      "There's nothing else I really want to do other than get up and build boats." - Mike Fiore

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