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  1. #1
    RC Racer
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    slop in the transmission.

    the transmission seems to have a lot of "slop" in it . What I mean is frome stand still to forward or reverse sems like you have to kinda rev it a bit the nuteral spot seems to be more.

    Any ideas, thanks..

  2. #2
    RC Turnbuckle Jr. JimmyNeutron's Avatar
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    100% normal. It is the high/low speed cog. There are a few mods out there to reduce slop, but I have not attempted either.

    EDIT:
    Here is one
    and another
    I believe I have seen one more...
    Last edited by JimmyNeutron; 09-23-2012 at 05:34 PM.
    Whatever it is I just typed... could be wrong.

  3. #3
    RC Racer
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    that makes sense..would it react the same in hi and low?

  4. #4
    RC Turnbuckle Jr. JimmyNeutron's Avatar
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    Yes, but the slop seems like less in high because the gearing is spinning a lot faster.
    Whatever it is I just typed... could be wrong.

  5. #5
    RC Racer
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    where do I learn about these mods that exist?

  6. #6
    RC Turnbuckle Jr. JimmyNeutron's Avatar
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    Click the links above... they are under "Here is one" and "and another".
    Whatever it is I just typed... could be wrong.

  7. #7
    RC Turnbuckle Jr. noir 522's Avatar
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    Quote Originally Posted by 04zrx View Post
    where do I learn about these mods that exist?
    Actually one of the original "tranny slop fixes" is in the Summit FAQ (that big posting at the top of the page)
    MAN, Use Common Sense.
    Outside? THERE IS NO BOX !

  8. #8
    RC Racer
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    noir: I've been reading in there also I'll look and see if I can find it. Jimmie: thanks for all your assistance you've been a great help.
    you guyr have really helped me alot, "thanks"

  9. #9
    RC Turnbuckle Jr. noir 522's Avatar
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    Quote Originally Posted by 04zrx View Post
    noir: I've been reading in there also I'll look and see if I can find it. Jimmie: thanks for all your assistance you've been a great help.
    you guyr have really helped me alot, "thanks"

    second or third to last entry (posted by Jolynsbass)
    MAN, Use Common Sense.
    Outside? THERE IS NO BOX !

  10. #10
    RC Racer
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    so today I fixed the slop in the transmission. I work with epoxy so it was easy for me to take up the slop with some nice thick epoxy. It has worked amazingly!

    On a different subject, does anyone have a way to quiet down the transmission? I was thinking of grease, like filling the cases with a grease and see if that helped to quiet it down.

  11. #11
    RC Turnbuckle Jr. JimmyNeutron's Avatar
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    I doubt grease will quiet it down... plus, the grease will add resistance and drive temps for the motor and ESC up.
    The transmission is designed to run dry... a little grease for the shift mechanism is ok, but too much and you're going to have issues of it even wanting to shift due to the vacuum that too much grease can create.
    Whatever it is I just typed... could be wrong.

  12. #12
    RC Racer
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    thanks Jimmie, I put it back together with a bit of lithium grease (just a little bit) I haven't noticed any ill effects.

  13. #13
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    Tranny noise is due to the straight cut gears. Full sized transmissions (1:1) use helical gears because they are quieter. (but create more friction thus the fluid in the tranny) Some manual transmissions still use straight cut gear(s) for reverse thats why you may notice gear whine in reverse.


    Sent from my iPhone using autocorrect

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