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  1. #1
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    Snapped Castle 1415-2400kv motor shaft

    Ok, against most advice read here, I replaced a stripped plastic spur gear with a metal one in my Slash Platinum 4x4.

    After 2 3s packs, I snapped the shaft on the motor. It’s the 3.175mm (1/8")

    Recommendations on motor replacement? I like the Castle 1415, currently paired with a Mamba Max Pro SCT esc.

    I have MIP axles, alum center diffamd lots of other upgrades. I normally run 2S and 3S for bash.

    Should I just replace with a new 1415 with the 5mm axle? Any opportunity to upgrade th motor? And throw the metal spur gear away?
    Last edited by ksb51rl; 03-19-2018 at 11:21 AM. Reason: corrected shaft size

  2. #2
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    Hey, don’t throw away the spur or the broken motor shaft. I’ll take em off your hands! Heck, I’ll take the stripped plastic spur gear too! I had no idea that using metal spurs is bad! I’ll have to research that! If I were you, I’d probably go and buy the 5mm shaft... then check the bearings in the motor.
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  3. #3
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    Good work on breakage
    Be hard to get a 5mm shaft to fail
    fabricator

  4. #4
    RC Turnbuckle Jr. El Sob's Avatar
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    Castle Creations has a 2400 motor that comes stock with a 5mm shaft. You may want to contact them and see if you are able to make it work for your motor.
    Member of the 10,000 + posts club! Here to help!

  5. #5
    Marshal ksb51rl's Avatar
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    Snapped Castle 1415-2400kv motor shaft

    The second time my 1415-2400kv motor bearings failed I decided to use my MMPro to its fullest abilities by purchasing a 4-Pole brushless sensored 36x63 mm motor with 5mm shaft. At $65.99 it was a lot cheaper than a repair or replacement in kind, is available in a range of KV, and ships from the US. (California is technically the US, right? ) It is a Hobbystar motor from RCJuice. I also power my Summit with the 1/8 truggy/monster truck sensored 40x74 mm motor from the same place, and for one dollar less. Both motors come with the required sensor cable for the MMPro, but the X-series of ESCs still require an additional harness/adapter. I have been very happy with both motors.
    Last edited by ksb51rl; 03-22-2018 at 02:15 PM.
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  6. #6
    RC Champion nickruger's Avatar
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    I would also look at your motor plate. I had the same motor snap the shaft right where it tapers down from 1/8"to 5mm. Had it rebuilt by castle, first run snapped it again. Turns out my STRC aluminum motor plate was slightly warped.

  7. #7
    RC Champion nickruger's Avatar
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    I was wondering about hobbystar motors. I think I might try one out.

  8. #8
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    They seem fine to me, but I’ve never used one before.
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  9. #9
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    Quote Originally Posted by El Sob View Post
    Castle Creations has a 2400 motor that comes stock with a 5mm shaft. You may want to contact them and see if you are able to make it work for your motor.
    Thanks, I will check with them re: non warranty replacement w a 5mm shaft...

  10. #10
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    Quote Originally Posted by ksb51rl View Post
    It is a Hobbystar motor from RCJuice.
    Thanks I will investigate this!

  11. #11
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    Quote Originally Posted by nickruger View Post
    I would also look at your motor plate. I had the same motor snap the shaft right where it tapers down from 1/8"to 5mm. Had it rebuilt by castle, first run snapped it again. Turns out my STRC aluminum motor plate was slightly warped.
    Wow I will check this as well....I have the STRC plate....thanks!

  12. #12
    RC Champion nickruger's Avatar
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    I found the last 1415 repair kit known to man on eBay and replaced mine with the 5mm rotor. I always check here and there to see if I can find another.

  13. #13
    Marshal ksb51rl's Avatar
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    Snapped Castle 1415-2400kv motor shaft

    Quote Originally Posted by nickruger View Post
    I was wondering about hobbystar motors. I think I might try one out.
    Quote Originally Posted by EvHexRC View Post
    They seem fine to me, but Iíve never used one before.
    Quote Originally Posted by gilkman View Post
    Thanks I will investigate this!
    Iíll never claim that theyíre the best, and I donít push my motors to the edge anymore, but for me both have been solid performers. Mine came boxed thus:

    Youíll have to solder the motor wires. Iíve never had an easier time soldering wires to terminals.
    Alt-248 on the number pad = į

  14. #14
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    Quote Originally Posted by nickruger View Post
    I found the last 1415 repair kit known to man on eBay and replaced mine with the 5mm rotor. I always check here and there to see if I can find another.
    I looked but couldn't find one.

  15. #15
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    So, I ended up ordering a Leopard 3670 V2 2400KV from RCJUICE for $55.99 w free shipping.

    The Castle non-warranty upgrade was $63. Jason from Castle support said they don't have replacement rotors/shafts "AS OF YET" maybe in the future?

    We'll see how the Leopard works. It's 70mm long (same as the 1415 from Castle)

  16. #16
    RC Champion nickruger's Avatar
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    I think you will be happy with it. I have never personally owned one, but I've heard good things. Yeah the repair kits have been discontinued for years. I found mine after periodically looking for about 2 years. It was 55$. Not too far off from a repair job from castle.

  17. #17
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    Quote Originally Posted by gilkman View Post
    So, I ended up ordering a Leopard 3670 V2 2400KV from RCJUICE for $55.99 w free shipping.

    The Castle non-warranty upgrade was $63. Jason from Castle support said they don't have replacement rotors/shafts "AS OF YET" maybe in the future?

    We'll see how the Leopard works. It's 70mm long (same as the 1415 from Castle)
    I’ve heard great stuff about leopard; you should be gold!(or red that is...hehhehheh)
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  18. #18
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    So if it doesn't have a 5mm shaft what size is it if it's smaller. Sorry been years since i ran it and stripped the pinion need to replace it any help thank you.

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  19. #19
    RC Turnbuckle Jr.
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    3mm or 3.2mm canít remember.


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  20. #20
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    Quote Originally Posted by Gripdog7205 View Post
    3mm or 3.2mm canít remember.


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    Thank you sir

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