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  1. #1

    Join Date
    Jan 2012
    Location
    Howard, PA
    Posts
    53

    Sumo RC issues

    Is anyone having issues with the main gear (mounted on driveshaft) stripping or breaking teeth? I have sold 9 of these in the past couple weeks with 3 returned within a day with this issue. All 3 were truggys stock out of the box no mods. I know they are the same platform as the trucks but I have not had any of the trucks returned for this issue. I have had 2 trucks come back because of servo issues tho. I have a store demp truck with the 180 mod and aluminum upgrades and never had any issues with it and it has been through some tough runs and jumps.

    Denny
    Big Boys RC Toys
    Howard, PA

  2. #2

    Join Date
    May 2011
    Location
    Palo, IA
    Posts
    195
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    RE: Sumo RC issues

    I wouldn't say I've seen an issue but out of 8 or so Sumos I've seen it happen a handful of times. Mine stripped because I over tightened the motor mount screws, bored  out the holes and couldn't keep a good mesh. The neighbor kid likes to run in to things and keep pulling on the throttle. Grass particularly seems to like to strip them out.

  3. #3

    Join Date
    Jan 2012
    Location
    Howard, PA
    Posts
    53

    RE: Sumo RC issues

    Yea I could see that happening from overtightening but these are stock out of box. and its not breaking the bigger part its breaking the smaller portion of the gear that contacts the the diff. the teeth are actually breaking clean off no other wear on them. has to be cheap plastic production flaw or bad setup. I know you cannot expect much from a car in this line but can expect more than that from it.
    Denny
    Big Boys RC Toys
    Howard, PA


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