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28 thoughts on “Arrma senton keeps burning up motors! why?”
  1. Avataaar/Circle Created with python_avatars Jeremy Mitts says:

    It needs more brake cleaner.

  2. Avataaar/Circle Created with python_avatars FullMaxx1 says:

    Check to see if it has a plug to switch from nicad to lipo… my Arma granite does… could be wrong setting or battery

  3. Avataaar/Circle Created with python_avatars Carlos Villafane says:

    When you go to a lower turn motor, the motor is meant to spin at higher RPM (Higher kV). You must change the pinion gear to a smaller pinion gear to prevent the motor from overheating. Utilizing the stock pinion gear that came with the vehicle (usually larger for a higher turn motor. The stock motor is typically a brushed 27 turn Mabuchi type one), will cause too much current draw from the ESC and over tax the motor, ESC and Battery because it cannot spin up as quickly as it should. Higher turn motors have more torque and run at lower RPM so they can handle a larger pinion gear, Lower turn motors like the 12T I see here are lower torque higher RPM and need smaller pinion gears.

  4. Avataaar/Circle Created with python_avatars DA66ER says:

    Superhuman automotive technician bested by children’s toy

  5. Avataaar/Circle Created with python_avatars Feelin' FPV says:

    Change your pinion size down. Or better yet ditch the brushed motor and buy a decent brushless ESC (Electronic Speed Controller) and motor.

  6. Avataaar/Circle Created with python_avatars Shawn 🏴‍☠️ Stafford says:

    I've never had a expensive RC truck that uses electric motors. Have a old Traxxas Nitro .15 Rustler. Wondering if your ESC & motor is not compatible with the electrical system? Maybe different ohm's rating or gear ratios are set too high?

  7. Avataaar/Circle Created with python_avatars hellhound1116 says:

    I would put a brushless motor kit in

  8. Avataaar/Circle Created with python_avatars Hola! David Hill says:

    I found out my bearing on the clutch is bad on mine today and is why I burned up a engine.. its cracked and lock so it's spinning on the engines case

  9. Avataaar/Circle Created with python_avatars James Wag says:

    Switch to a brushless motor.

  10. Avataaar/Circle Created with python_avatars Drakan Wolf says:

    Throw parts at it! Buy a brushless motor for it and Li-Po 2-cell or 3-cell battery. Or it might be that you over-geared it for the motor! have a great day and keep your dickin' advice!

  11. Avataaar/Circle Created with python_avatars Steve Leigh says:

    Replace the esc ..
    Has the same issue with my tactic esc. Burnt up 2 new motors.
    Got a 1080 esc and been flawless since

  12. Avataaar/Circle Created with python_avatars william murderface says:

    Install a traxxas 12t brushed motor and that will stop. Break in the motor under water and it will last a very long time. Yes under water. Just put it in a cup of water and run it forward and reverse, half throttle for about 20 seconds. I have worked as an rc service technician for 15ish years btw. When i do this for ppl they normally dont have issues anymore. Also keep the motor clean. No dust = no damade most of the time.

  13. Avataaar/Circle Created with python_avatars Ja Lee says:

    Motor is too low on turns. Arrma senton drivetrain is very power hungry also. Lots of parasitic loss in all the plastic gears. Go with brushless and stay under 4000kv rated motor.

  14. Avataaar/Circle Created with python_avatars Jesus is Alive! says:

    Bad esc!

  15. Avataaar/Circle Created with python_avatars mase9975 says:

    I'm in the hobby and those brushed motors are garbage, go with a traxxas 550 12t or if you can find them a helion 550 12t oh and while your at it buy some electric motor cleaner for rc hobby motors or buy the arrma brushed esc/motor combo. Make sure you do a good break-in for brushed motors. Hobbywing esc/motor combo 60amp with the program card for 1/10 scale and it's brushless so you will need a lipo battery with a lipo charger.

  16. Avataaar/Circle Created with python_avatars TheMetalsoft09 says:

    Brushed motors with Fans are known for this. Traxxas has the same issue. Horrible design. Just go brushless or replace with a brushed motor without a so called " cooling fan "

  17. Avataaar/Circle Created with python_avatars Joseph C says:

    Arrma had a bad batch of esc. I have seen many start on fire. I would replace the esc and NOT use theirs.

  18. Avataaar/Circle Created with python_avatars chrismechanic B says:

    a 12 turn motor is very hot, i.e it draws a lot of current and will heat up fast, i used to use 19 turn motors on an old e-maxx and they were bad enough.
    best advice is throw the motor, esc and nm-hi pack in the bin that's shit old tech now, buy yourself a brushless motor and esc kit and swap over to li-po battery packs, you will have 3x the power and 3x the fun, you might break the drive shafts with all the power brushless has.
    once a brushed motor gets so hot it melts the soldier joints its only fit for the bin.

  19. Avataaar/Circle Created with python_avatars Chris Bailey says:

    Its been a while since I messed with electric R/C…chop off the noise capacitor and see if that fixes it…the capacitor may be going bad causing a short to ground….

  20. Avataaar/Circle Created with python_avatars Nicholas Ero says:

    I have the same car except mine is a brushless

  21. Avataaar/Circle Created with python_avatars LPMeternum says:

    Convert to brushless.

  22. Avataaar/Circle Created with python_avatars Gen X RedNex says:

    Replace the ecm! It’s got a bad resistor that’s spiking the amperage to the motor. Had this same thing happen on a hvac unit a few times.

  23. Avataaar/Circle Created with python_avatars MrDueyx99 says:

    did you buy this new? I wonder as well if the gearing is too tall for the stock 12t motor, but that does not explain the motor running too hot while bench testing. Brushed motors with a bit of timing built in, will run harder one way, and slower the other. If the truck is setup to run the motor on the slower direction, it will surely overheat. I would think that you would notice this while pulling the trigger and the truck goes into reverse, unless there is a throttle reversing switch on the radio, im not sure which radio you have.

  24. Avataaar/Circle Created with python_avatars PhillLsx Ga. says:

    Is the brush shorting out??
    Mine snapped out of place on my dewalt drill I fixed it..
    Go brushless!!

  25. Avataaar/Circle Created with python_avatars Klip One says:

    When you said hot, I instantly thought impedance/hz differences. How many volts is that motor requiring and what kind of voltage are you supplying it?

  26. Avataaar/Circle Created with python_avatars Floppychzcake says:

    if it's not the esc try buying a new motor, they're cheap. Can get a good one for about 20-30 bucks

  27. Avataaar/Circle Created with python_avatars Doug Y. says:

    Too much gearing for that motor. Try to change your pinion and spur gear to a lower gear ratio.

  28. Avataaar/Circle Created with python_avatars parker edwards says:

    The problem that you are having may relate to a short in the esc, it may be causing some of the power to be combining in the motor.

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