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My 2 wd Slash loves to munch spur gears

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Old 10-18-2010, 05:01 PM
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Keep a eye on the temp of the motor as well. If that plastic gets to hot it will move the motor.
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Old 10-18-2010, 05:21 PM
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Originally Posted by SocalSnakeEyes
Keep a eye on the temp of the motor as well. If that plastic gets to hot it will move the motor.
It's setup 16/90 right now. I wish TRX would've come up w/somthing more durable in their Slash: 4 or 5 runs w/4600 is crazy. I'm buying spur gears by the 6 pack when I could be buying Pepsi's! It generally runs about 160 or so w/90t and w/86t the thing cooks in the 190's.
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Old 10-18-2010, 05:26 PM
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What they missed with all the Magnum 2.72 trans cars is keeping the SRT trans. If they would have carried that over they would be fine. Go get the new lay shaft for the AE sliper. You will love it.
http://www.teamstrc.com/index.php?ro...product_id=661



SRT pic below
Attached Thumbnails My 2 wd Slash loves to munch spur gears-srtchas.jpg  

Last edited by SocalSnakeEyes; 10-18-2010 at 05:39 PM.
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Old 10-18-2010, 05:43 PM
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you may want to check out the top shaft in the transmission. my old slash ate a couple spurs so i took the trans apart and rebuilt it. Seems that there was a little slop in the top shaft. I am not certain what i did differently when i rebuilt it but it solved my problem and never killed another spur gear again. kinda miss that truck actually,.

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Old 10-18-2010, 06:20 PM
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Stripping spurs is a symptom. You need to find the cause and fix it. Using a steel spur will just mask the problem temporarily and it will just come back later and eat up your $30 spur rather than your $4 one.

I'd replace the pinion just in case it is defective, since it's a relatively cheap part. Double check your motor mesh and check it and motor mount screws after each run.

Considering locktiting (sparingly, as to not get too much in the motor) your motor mount screws and possibly using some larger washers to get more surface area and friction and therefore less prone to sliding.
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Old 10-18-2010, 07:06 PM
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Originally Posted by SocalSnakeEyes
What they missed with all the Magnum 2.72 trans cars is keeping the SRT trans. If they would have carried that over they would be fine. Go get the new lay shaft for the AE sliper. You will love it.
http://www.teamstrc.com/index.php?ro...product_id=661

SRT pic below
They seem to be out of stock...
Do you have a connection to getting these?
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Old 10-18-2010, 07:08 PM
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Originally Posted by bowl806
It's setup 16/90 right now. I wish TRX would've come up w/somthing more durable in their Slash: 4 or 5 runs w/4600 is crazy. I'm buying spur gears by the 6 pack when I could be buying Pepsi's! It generally runs about 160 or so w/90t and w/86t the thing cooks in the 190's.

if your buying spur by the 6 pack.. your doing it wrong.
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Old 10-18-2010, 09:15 PM
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Originally Posted by 1Fastpede
if your buying spur by the 6 pack.. your doing it wrong.
I meant 6 pks 15-25 16-26.
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Old 10-18-2010, 09:19 PM
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Originally Posted by SocalSnakeEyes
What they missed with all the Magnum 2.72 trans cars is keeping the SRT trans. If they would have carried that over they would be fine. Go get the new lay shaft for the AE sliper. You will love it.
http://www.teamstrc.com/index.php?ro...product_id=661



SRT pic below
Yeah I like that! STRC is out of stock now so I'll have to wait. Do you have part #'s for the AE slipper and whatever goodies you added? I'm running a Mamba Pro 4600 w/2s in mine. Thanks!
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Old 10-18-2010, 09:23 PM
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Originally Posted by bschanz
you may want to check out the top shaft in the transmission. my old slash ate a couple spurs so i took the trans apart and rebuilt it. Seems that there was a little slop in the top shaft. I am not certain what i did differently when i rebuilt it but it solved my problem and never killed another spur gear again. kinda miss that truck actually,.

ben
You know, It worked fine till I changed pinions and went with the Mamba 4600; Hopefully I won't have to tear apart the whole thing but if I do thanks for the input.
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Old 10-18-2010, 09:36 PM
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Default Here is the web page on mine.

http://snakeeyesrcracing.webs.com/thetrxtrans.htm

ST said they will have them in a week.
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Old 10-18-2010, 09:43 PM
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SocalSnakeEyes: Thanks for that!
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Old 10-18-2010, 09:46 PM
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Your welcome.
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Old 10-19-2010, 04:28 AM
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Originally Posted by bowl806
You know, It worked fine till I changed pinions and went with the Mamba 4600; Hopefully I won't have to tear apart the whole thing but if I do thanks for the input.
I was running my sidewinder and 5700 combo in my slash when i was eating them. I actually took apart the trans to fill the diff with oil. when i was getting into it, i noticed the top shaft wobbled a little. when i put it all back together, i tried to wobble the top shaft and there was no wobble. again, not sure what i did but it solved my problem.

shortly thereafter i put the slash back to stock and raved that way, then i sold it.
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Old 10-19-2010, 12:07 PM
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Originally Posted by bowl806
really;kind of soft? I'll have to check out some Losi's then. Thanks Davidka!
Originally Posted by bowl806
I meant 6 pks 15-25 16-26.
Not "really:kind of sof?" -->> REALLY soft!
The Robinson pinions that come in the economy six packs are among the softest steel pinions available. Only the Traxxas OEM Slash pinion is softer.

That explains your problem with eating spur gears. Once the pinion starts to wear, the teeth becopme sharper and sharper until they are knife edged. Any new spur you put on will get chewed up quickly.

I have seen this on Slashes owned by many people. I tell everyone the same thing: Get a Losi pinion.

Losi pinions are the hardest steel pinions I have found. They are heat treated and are harder than most files. I have run the same Losi pinion on my Slash for over two years and only changed the spur gear a few months ago. No matter how much grit gets embedded in the spur, it will not wear out a Losi pinion (unless you are running in Diamond Dust ).
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