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  1. #1
    RC poster
    Join Date
    Apr 2015
    Posts
    2

    Tmaxx 3.3 motor problems

    Hey guys i have a 2.5 chassis with a 3.3 on it my problem is that when i try to start it with the ez start or even pull start it will just spin freely most of the time, dont know what it could be. Also what is a good sea level tune? Thank you very much for any help

  2. #2
    RC Champion
    Join Date
    Dec 2014
    Posts
    1,054
    Sounds like the one way bearing needs to be replaced.

  3. #3
    RC poster
    Join Date
    Apr 2015
    Posts
    2
    Any other ideas of what it could be? I do seem to think it is the one way tho

  4. #4
    Marshal Double G's Avatar
    Join Date
    May 2008
    Location
    Putting the wet stuff on the hot stuff
    Posts
    10,509
    Clean and relube the one-way bearing. Install with letters facing the engine. If it is still an issue, make sure the starter shaft is not worn. Replace as needed.
    As for tune, two engines could be side-by-side and have different needle settings. Tune to make the engine happy yet keep the temps in check.
    The Super Derecho

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