The official 36" zelos twin modding thread

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  • prepered
    Member
    • Jan 2018
    • 59

    #2281
    Have someone experienced the motor on Zelos Twin burned. After a few minutes, one engine stopped working. And there was heavy smoke from it. ESC was not hot and cooling system not blocked. do not really understand why it is burnt, Should the ESC not be hot if water did get through. ??

    Comment

    • kfxguy
      Fast Electric Addict!
      • Oct 2013
      • 8746

      #2282
      Originally posted by prepered
      Have someone experienced the motor on Zelos Twin burned. After a few minutes, one engine stopped working. And there was heavy smoke from it. ESC was not hot and cooling system not blocked. do not really understand why it is burnt, Should the ESC not be hot if water did get through. ??
      The motors were probably not lined up and were binding the flexes up against the liner.
      32" carbon rivercat single 4s 102mph, 27” mini Rivercat 92mph, kbb34 91mph, jessej micro cat(too fast) was

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      • CraigP
        Fast Electric Addict!
        • May 2017
        • 1464

        #2283
        That explanation still has a bit of mystery. If the motor is bound up by the flexes, it will pull a lot more current, so the ESC should be hot, unless it has a very high de-rate... It sounds like a winding failure, but that should pull high current too.. Sometimes it’s hard to know exactly, when it comes to electricity. All you can do is replace it, and triple check everything going back together.

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        • prepered
          Member
          • Jan 2018
          • 59

          #2284
          Originally posted by kfxguy
          The motors were probably not lined up and were binding the flexes up against the liner.
          Nop they where lined up perfekt. and make several runs whit it before whit no issue.

          Comment

          • kfxguy
            Fast Electric Addict!
            • Oct 2013
            • 8746

            #2285
            Originally posted by prepered
            Nop they where lined up perfekt. and make several runs whit it before whit no issue.
            Did you flip the boat any? If so that throws them out of alignment. I speak from experience. Not guessing, mine was smoking when I brought it in and noticed the motors shifted. They can do it even if you didn’t flip. The mount is a poor design in my opinion. Good idea, but it should have a slot to keep it aligned. I’m pretty sure it was just in a bind slightly.
            32" carbon rivercat single 4s 102mph, 27” mini Rivercat 92mph, kbb34 91mph, jessej micro cat(too fast) was

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            • prepered
              Member
              • Jan 2018
              • 59

              #2286
              Originally posted by kfxguy
              Did you flip the boat any? If so that throws them out of alignment. I speak from experience. Not guessing, mine was smoking when I brought it in and noticed the motors shifted. They can do it even if you didn’t flip. The mount is a poor design in my opinion. Good idea, but it should have a slot to keep it aligned. I’m pretty sure it was just in a bind slightly.
              They was no bind and did, t flip it today. I think it was just a fail in motor. shortcut maybe.

              Comment

              • TRUCKPULL
                Fast Electric Addict!
                • Apr 2007
                • 2969

                #2287
                Motor mount screws too long, and shorted out the winding.

                Larry
                Past NAMBA- P Mono -1 Mile Race Record holder
                Past NAMBA- P Sport -1 Mile Race Record holder
                Bump & Grind Racing Props -We Like Em Smooth & Wet

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                • CraigP
                  Fast Electric Addict!
                  • May 2017
                  • 1464

                  #2288
                  Good point Larry... OP needs to check that.

                  Comment

                  • prepered
                    Member
                    • Jan 2018
                    • 59

                    #2289
                    Originally posted by TRUCKPULL
                    Motor mount screws too long, and shorted out the winding.

                    Larry
                    Larry they are stock screws . ??

                    Comment

                    • CraigP
                      Fast Electric Addict!
                      • May 2017
                      • 1464

                      #2290
                      I wouldn’t assume that the Chinese guy used the right screws.. Do a depth check yourself, then you know.

                      Comment

                      • prepered
                        Member
                        • Jan 2018
                        • 59

                        #2291
                        Originally posted by CraigP
                        I wouldn’t assume that the Chinese guy used the right screws.. Do a depth check yourself, then you know.
                        I will Thank,s

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                        • prepered
                          Member
                          • Jan 2018
                          • 59

                          #2292
                          Will these motor be gode for Zelos. and can the Stock ESC handle the. [ATTACH=CONFIG]157936[/ATTACH
                          Specs:
                          RPM/v: 1700kv
                          Poles: 4
                          Max voltage: 22.2v (6S)
                          Max Current: 84A
                          Max Watts: 1800w
                          Resistance: 0.0094ohm
                          No Load Current: 2.9A
                          Can Diameter: 36mm (actual motor diameter)
                          Can Diameter inc. Water Jacket: 44mm
                          Can Length: 60mm
                          Shaft Size: 5mm
                          Weight: 270gIMG_8797.jpgIMG_8797.jpg

                          Comment

                          • fweasel
                            master of some
                            • Jul 2016
                            • 4286

                            #2293
                            You'll need to swing a lager diameter prop if you install a replacement motor with a lower kV motor to maintain a similar speed. That's an over simplification of all the factors involved, but something to consider. If you're looking for new motors with not a lot of other changes to be made, if any, the new Dynamite DYNM3831 are awesome and plug and play. They're more efficient than the originals and the stock ESC's can handle them, on appropriate sized props.
                            Vac-U-Tug Jr (13mph)

                            Comment

                            • prepered
                              Member
                              • Jan 2018
                              • 59

                              #2294
                              Originally posted by fweasel
                              You'll need to swing a lager diameter prop if you install a replacement motor with a lower kV motor to maintain a similar speed. That's an over simplification of all the factors involved, but something to consider. If you're looking for new motors with not a lot of other changes to be made, if any, the new Dynamite DYNM3831 are awesome and plug and play. They're more efficient than the originals and the stock ESC's can handle them, on appropriate sized props.
                              Thanks for the input. But don't want to buy Dynamite DYNM3831. one of my stock ones just burn out so I think I go whit and other brand.

                              IMG_8965.jpg IMG_8959.jpg IMG_8961.jpg

                              Comment

                              • TRUCKPULL
                                Fast Electric Addict!
                                • Apr 2007
                                • 2969

                                #2295
                                Originally posted by prepered
                                Thanks for the input. But don't want to buy Dynamite DYNM3831. one of my stock ones just burn out so I think I go whit and other brand.

                                [ATTACH=CONFIG]157942[/ATTACH] [ATTACH=CONFIG]157943[/ATTACH] [ATTACH=CONFIG]157944[/ATTACH]
                                The motor in that picture is the old style 3831's

                                The newer style motor are much better.
                                https://www.offshoreelectrics.com/pr...od=hh-dynm3831

                                Larry
                                Past NAMBA- P Mono -1 Mile Race Record holder
                                Past NAMBA- P Sport -1 Mile Race Record holder
                                Bump & Grind Racing Props -We Like Em Smooth & Wet

                                Comment

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