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  1. #1
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    My idler gear striped again! That the 3x time! Help needed

    Hey,
    I have a traxxas slash 2wd brushed that i have turned into brushless and since then my idler gear stripped 3 times and im frustrated that i cant not bash 5min!
    PleASE i need help!!!

  2. #2
    RC Turnbuckle Jr. billy-bones's Avatar
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    Are you running the stock traxxas trans?
    If so something is amiss,they are one tough trans.
    Try checking for any binding after you assemble the trans prier to install.
    Make sure all shim's are installed right.
    What type of motor are you running?
    Are you running a 3s? If that's the case,anything can go at any time.
    Imo anyway.
    I replace all my trans bearing more than most,but run my trucks hard when their on the track.
    If all else fail's run a Robinson hardened steal idler.
    http://www.rcboca.com/rrp-xtra-hard-...FWNlMgodSRQA6w
    It wont fail,but the next weak link in the drive train will.
    Built Ford Tuff With Chevy Stuff.

  3. #3
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    yes im runing the stock transmition case.
    There not any binding i've loked but not any binding.
    I'm running the velineon 3500kv with 3s lipo 5200 mAh

    but i cant buy it because i live in spain
    Last edited by cooleocool; 05-10-2013 at 02:18 PM. Reason: merge

  4. #4
    RC Turnbuckle Jr. billy-bones's Avatar
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    3s lipo 5200 mAh
    Imo This is your problem.^^^
    3s just pounds the snot out of the slash.
    Even if you could obtain a Robinson hardened gear,something else would break.
    I have 24 lipo's,one is a 3s.
    It's one of the first I bought,now it just sits.
    I don't even enjoy using it,since something always breaks,not to mention I race,and there is a 2s track limit.
    Wish you the very best,and hope you can figure something out.
    But if you want to keep running 3s,imo get ready to start repairing your truck a lot.
    Or get a good 2s lipo,and have hours of continuous fun,with little to no maintenance.
    Enjoy.
    Built Ford Tuff With Chevy Stuff.

  5. #5
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    thanks alot!
    i'll put some pictures and tell me about it ok?
    what lipo 2s do you recomend me??

    [IMG][/IMG]
    [IMG][/IMG]
    [IMG][/IMG]
    what do you say??

    and what about if i change the pinion and spur gear??
    will it help??
    Last edited by cooleocool; 05-10-2013 at 02:19 PM. Reason: merge

  6. #6
    RC Turnbuckle Jr. billy-bones's Avatar
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    Really don't know what to say,they can be quite strict about brand names.
    But from all I have heard,and will soon know my self.
    SPC is not only a top notch lipo,it's sold at a more then reasonable price.
    However I am unsure of It's availability in Spain.
    But I have never heard one unsatisfied costumer.
    and what about if i change the pinion and spur gear??
    will it help??
    You might want to loosen you slipper,that will take a lot of stress off the idler gear.
    Built Ford Tuff With Chevy Stuff.

  7. #7
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    will it be fine with a orion 7cell nimh 4500mah?

  8. #8
    RC Turnbuckle Jr. billy-bones's Avatar
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    will it be fine with a orion 7cell nimh 4500mah?
    Well sure,it will take a 3s lipo,it's just my opinion and from what I have seen and heard on this forum that 3s just pounds on the slash.
    It will take it for a while,but will break sooner or later.
    And you must have a lipo charger,so I thought a 2s would be a good option.
    A seven cell would be fine,but I'm sure you would like a lipo better.
    Built Ford Tuff With Chevy Stuff.

  9. #9
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    3s lipo is not the problem, these things can take a 6s lipo and not strip.

    Are you using a steel idler gear? Older versions came in plastic and aluminum I am wondering if you are getting some old stock of one of those?
    BlindMan Racing
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  10. #10
    RC Turnbuckle Jr. Emaxx2.0's Avatar
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    Also have you replaced the transmission case? I'm thinking if it was molded improperly that the idler isn't meshing correctly with the other gears and with the added power of the 3s is stripping it. But if it is as easily as what dad is saying you'll need the actually steel idler.
    Simply the best. The beautiful Traxxas SRT and TCP

  11. #11
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    What Dad said, are you replacing with a plastic gear every time? You need to go with a steel idler gear and you should have no problems. Also check slipper clutch is not too tight.

  12. #12
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    Also, make sure your slipper isn't tight at all. Too tight can cause a whole lot of problems. Also, make sure you have the proper washers in the right locations, otherwise gears can become out of place.
    Slash VXL
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  13. #13
    RC Turnbuckle Jr. O.G.'s Avatar
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    How long did you drive the truck before you started having problems? Meaning, did they start from the beginning or did you drive the truck for a while before the problems started.

    You may not have replaced a bad gear that is still in the transmission and is causing the repeated problems.
    My Black & Blue Rally is faster than your color...

  14. #14
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    I agree with O.G. It could be one gear, or some material lodged in between the teeth of a gear inside your tranny.
    Slash VXL
    Rustler Hobbywing
    Summit 1/16 VXL

  15. #15
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    As stated above, if you are only getting 5 minutes of run time, there may still be some broken teeth or some other debris still in the tranny causing your issues. The idler gear especially if you use the steel one should not be stripping teeth.

    The only idler gear I've stripped was in a Proline tranny (plastic gear).

    Hope you get it fingered out.
    "enjoy your ride"

    Dennis

  16. #16
    RC Turnbuckle Jr. rjm2519's Avatar
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    I second the plastic/delrin gear make sure you are getting a steel one, not aluminum. And also loosen your slipper clutch.

    Above all clean the inside of the case meticulously after losing a gear like that it doesn't take much to ruin another one.
    Donít handicap children by making life easy

  17. #17
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    Personally I'm going to say

    If you keep breaking bits just buy a new (and I do mean new so you avoid delrin gears) complete transmission on ebay.

    and

    I'm new to this game and have limited experience on 3S but I'm with billy-bones on this, really what's the point? So it goes like poop off a stick - its' usually into a tree or something hard that breaks your car. Good, high C (50+) and mah (5000+) , 2S batteries are plenty to have fun with - in my opinion.

    The other thing I haven't seen is what surfaces you are running on? What size wheel/tyres you have? Anything creating drag on the drive train - grass, sand, bigger wheels/tyres - will be putting a LOT of extra pressure on the whole drivetrain and increase the likelihood of breakage.

    Hope you get sorted though - being off off-road is frustrating.

  18. #18
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    I run 3S in my Stampede and never stripped a idler gear it also depends on your slipper setting plus how clean and lubed you keep your transmission . I have only stripped 2 one was on the Pro-Line Transmission ( 5 min on track with the plastic one ) and a stock one on a vxl but lots of dirt got in the case and ended up stripping the whole transmission. Also the stampede that is running 3S has a Castle 3800 in it and Pro-Line Trenchers and Hardened steel pinion and spur gear. I try not running your slipper as tight and clean each gear tooth by tooth and cleaning out the case inside too.

  19. #19
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    I have changed the whole transmition case and all the pinions and gears etc... i have not tigth the spur gear alot i have it like stock.. all also changed washers, bearings all that stuff. but it is still stripping. i always use the steel one. i have stock tires, all is stock except the velineon system and the new trans case. i run on flat terrain not bash or nothing.
    helpp!!

  20. #20
    RC Turnbuckle Jr. billy-bones's Avatar
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    Quote Originally Posted by traxxasvxlbasher View Post
    I have changed the whole transmition case and all the pinions and gears etc... i have not tigth the spur gear alot i have it like stock.. all also changed washers, bearings all that stuff. but it is still stripping. i always use the steel one. i have stock tires, all is stock except the velineon system and the new trans case. i run on flat terrain not bash or nothing.
    helpp!!
    This is a real long shot,but my grandson some how reversed his transmitter so it would go straight from reverse to forward with no delay,the exact opposite of what it should be.
    If by some chance this happened to you,and your going from reverse to forward trying to pull wheelies,that would but some strain on the idler.
    But How he did it I have no idea,but if this once in a million deal happened to you,try resetting your transmitter to default settings.
    I cant think of anything else that would cause it.
    Built Ford Tuff With Chevy Stuff.

  21. #21
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    thanks billy-bones i will try it. but now im going to denmark to live and there i will ask my dad about it also and go to my local hobby store. i will try it in 1-2 weeks.
    thanks

  22. #22
    RC Turnbuckle Jr. billy-bones's Avatar
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    Quote Originally Posted by traxxasvxlbasher View Post
    thanks billy-bones i will try it. but now im going to denmark to live and there i will ask my dad about it also and go to my local hobby store. i will try it in 1-2 weeks.
    thanks
    Sorry I meant forward to reverse.
    So if he's going forward it will go straight to reverse with no break,maybe his esc it self is messed up.
    From reverse to forward is where the break works.
    Built Ford Tuff With Chevy Stuff.

  23. #23
    RC Turnbuckle Jr. billy-bones's Avatar
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    Quote Originally Posted by billy-bones View Post
    Sorry I meant forward to reverse.
    So if he's going forward it will go straight to reverse with no break,maybe his esc it self is messed up.
    From reverse to forward is where the break works.
    I was to late to edit.
    If yours is doing what Austin's did,just go through the programing.
    Hold the esc button down from the off position till it blinks red once,then pull all the way to full throttle on the tx,wait for the blink on the esc,let go,then full reverse wait for the blink,and back to neutral.
    It fixed his right up.
    Built Ford Tuff With Chevy Stuff.

  24. #24
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    i will do it. but i canot do it now. it is send to denmark and im still in spain so in 1-2 i will try and see if its that the problem.
    thnks

  25. #25
    RC Turnbuckle Jr. O.G.'s Avatar
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    I wish I was in Spain.. or Denmark. Good luck with the truck.
    My Black & Blue Rally is faster than your color...

  26. #26
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    thnks. in Denmark there are alot of rc stores and all that kind of stuff. in Spain there is nothing and very bad situations.

  27. #27
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    i have bought a new e revo brushless and 2 3s lipos = 6s. i have heared that if i put 6s lipos in there it will broke something and i dont know what to do. help

  28. #28
    RC Turnbuckle Jr. billy-bones's Avatar
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    Quote Originally Posted by traxxasvxlbasher View Post
    i have bought a new e revo brushless and 2 3s lipos = 6s. i have heared that if i put 6s lipos in there it will broke something and i dont know what to do. help
    Never owned a e revo,but from what I have heard they can take a lot.
    I have heard people running two 2s and two 3s in them.
    You might want to go to that forum,I'm sure you will get an answer there.
    Built Ford Tuff With Chevy Stuff.

  29. #29
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    ok billy bones

  30. #30
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    I had the same problem and finally after taking the trans apart 5 times i saw that the the big gear on the diff housing was filled with little bits of sand and tiny tiny pieces of some of the teeth were missing. Thus causing the the gear mesh to become very loose on hard impacts. Causing the teeth to jump and wreck the idler gear.

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