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  1. #1
    RC poster
    Join Date
    Apr 2020
    Posts
    1

    Grinding Noise on the 4-Tec 2.0 VXL

    Hey guys, I'm new to all this. I just changed out the 29-T and 70-T for the 35-T and 55-T. It is now making a grinding noise. I can't tell whether it was like this before.

    Here's a video of the noise: https://www.youtube.com/watch?v=mChPf_0D0Ro

    Let me know what you think.

  2. #2
    RC Enthusiast
    Join Date
    Oct 2018
    Posts
    37
    Does it make the noise if you pull the motor away from the spur?

  3. #3
    RC Competitor
    Join Date
    Apr 2019
    Posts
    55
    Sounds really close together but I could be wrong. Did you use the screw holes that the manual specifies?

  4. #4
    RC Enthusiast
    Join Date
    Oct 2018
    Posts
    37
    I found that the plastic motor mount warps from torque and heat, eventually I started noticing an oscillating noise when I drove mine. Your old gears probably got worn over time and it wasn't as noticeable of a sound.

    When I upgraded to an aluminum mount the gear mesh sounded a lot smoother.

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