Results 1 to 9 of 9
  1. #1
    RC poster
    Join Date
    Jan 2012
    Posts
    11

    New to the traxxas summit ( just bought today ) have a question

    Just bought a new traxxas summit this morning. Took it out of the box and set it on the floor, the drivetrain seems to have a lot of play in it. If i put it on the floor and pull it backwards until it starts turning the motor, mark that spot. Then from that spot push it forward, until it starts turning the motor in the other direction. The distance between the two points is a good 3-4 inches of rolling free play. I'm just wondering if that is normal for these trucks. It just seems a little too much free play, but maybe thats the way they are built. Any info would be appreciated. Thanks.

  2. #2
    RC Qualifier
    Join Date
    Mar 2011
    Location
    Newport Beach, California
    Posts
    516
    Both of mine are the same way.
    Bash OR crawl? No, the Summit does it all!

  3. #3
    Marshal ksb51rl's Avatar
    Join Date
    Nov 2006
    Location
    Northern NJ
    Posts
    15,460
    Agreed. There is a decent amount of free play. It is normal for this model.

    Welcome to the Summit.
    Alt-248 on the number pad =

  4. #4
    RC Turnbuckle Jr. pavmentsurfer's Avatar
    Join Date
    Jul 2009
    Location
    Ontario, Canada
    Posts
    11,145
    I think its simply due to the large number of large gears laying between the motor and the wheels. Each set must have a small amount of play so they can mesh freely... add all that up and your left with exactly what your experiencing. Once you start driving its only a very very minor annoyance at worst and not even noticeable at best. Normal non the less.
    Pede, Summit,
    ERBE, Rally,
    Motley Crew, 1SQ

  5. #5
    RC poster
    Join Date
    Jan 2012
    Posts
    11
    Thanks a lot for the info guys. Well, i hope im gonna like this truck. I also bought an e-revo vxl, well ordered it anyway ( they didnt have the color i wanted ). I'm going to pick it hopefully by thursday. Trying to get back into the r/c world. I was in it about 5-6 years ago, but I had the nitro versions. Decided to go with electric this go round. Nitro was always a pain. Thanks again for the info.

  6. #6
    RC Competitor
    Join Date
    Jan 2012
    Location
    SL,UT
    Posts
    88
    They have that much play in the gears so that switching from high to low (and vice versa) and locking the diffs goes smoothly.
    You can drive my car, but there's a $500 deposit.

  7. #7
    RC Qualifier
    Join Date
    Jan 2012
    Location
    Jersey
    Posts
    268
    Welcome to the summit, Great truck

  8. #8
    RC Qualifier
    Join Date
    Jan 2011
    Posts
    313
    Quote Originally Posted by kaw_kx500 View Post
    Thanks a lot for the info guys. Well, i hope im gonna like this truck. I also bought an e-revo vxl, well ordered it anyway ( they didnt have the color i wanted ). I'm going to pick it hopefully by thursday. Trying to get back into the r/c world. I was in it about 5-6 years ago, but I had the nitro versions. Decided to go with electric this go round. Nitro was always a pain. Thanks again for the info.
    Welcome to the Summit world!
    Trust me, you will love the transition from nitro. I switched 2 years ago and dont miss it at all. That insane raw power isnt there anymore but you can still get pretty cazy with this beast. The E Revo should fill your speed needs out quite nicely!

  9. #9
    RC Qualifier
    Join Date
    May 2010
    Location
    Colorado
    Posts
    541
    FYI: that play is caused from the different ratio gears (for high and low gear) in the tranny. If you take your tranny apart, you will notice that those gears only have two locking points for the shifting mechanism (180 degrees apart). Thus, when rotating the tranny output shaft back and forth, you will notice a bit of zero resistance until the the tranny gears rotate around and engage the shifting mechanism the other way. The rest of the drivetrain is actually pretty tight.
    Why can't other people share my opinions?

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •