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12-24-2017, 10:03 PM | #1 |
RCC Addict Join Date: Apr 2009 Location: LA
Posts: 1,662
| Why is my axle chattering?
Anybody know why my axle is chattering at full steering lock? It does this for both left and right, starts at about 75% steering, and continues on through to full lock. Do I need to shim my diff and if so, which side(s)? https://photos.app.goo.gl/lHs5orSc8EDCG3tm2 |
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12-25-2017, 03:44 AM | #2 | |
Newbie Join Date: Nov 2017 Location: Reno
Posts: 30
| Re: Why is my axle chattering? Quote:
Fwiw that wobble has gotten me unstuck a lot of times. Sent from my Nexus 6P using Tapatalk | |
12-25-2017, 10:22 AM | #3 |
RCC Addict Join Date: Apr 2009 Location: LA
Posts: 1,662
| Re: Why is my axle chattering?
Does anyone else's axles chatter when turning? I'm surprised no one's mentioning it in the forums. Hmm...
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12-25-2017, 11:54 AM | #4 |
I wanna be Dave Join Date: Feb 2013 Location: NW Indiana
Posts: 3,196
| Re: Why is my axle chattering?
All of mine will if i turn too far....just the nature of the beast...mine starts at about 80% or so... Not a big deal and it has been mentioned numerous times
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12-25-2017, 03:13 PM | #5 | |
Newbie Join Date: Dec 2017 Location: USA
Posts: 18
| Re: Why is my axle chattering? Quote:
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12-25-2017, 03:45 PM | #6 |
Pebble Pounder Join Date: Nov 2012 Location: springfield
Posts: 107
| Re: Why is my axle chattering?
Yeah the shafts are binding from over steer. I've busted them before and have also popped dog bones out doing that. Need to turn the steering dual rate down a bit.
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12-25-2017, 05:43 PM | #7 |
RCC Addict Join Date: Nov 2016 Location: 1972 born Christian, Chinese.
Posts: 1,321
| Re: Why is my axle chattering?
Could be reduce the chattering by using CVD Instead of Universe joint?
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12-25-2017, 08:50 PM | #8 |
RCC Addict Join Date: Apr 2009 Location: LA
Posts: 1,662
| Re: Why is my axle chattering?
Ugh. Well that's frustrating. They're CVDs for goodness sake! And it's not like I'm asking them to do 90 degrees or something. Shouldn't they be able to take it? I mean, that's the whole point of CVDs, right? Isn't there a way to tune them by filing down the points that rub? I thought I read that somewhere.
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12-25-2017, 09:50 PM | #9 |
RCC Addict Join Date: Jan 2010 Location: Barboursville, WV
Posts: 1,448
| Re: Why is my axle chattering? must be a female axle |
12-25-2017, 10:29 PM | #10 |
I wanna be Dave Join Date: Aug 2004 Location: Tri-cities, WA
Posts: 4,831
| Re: Why is my axle chattering?
Scx10-2 have univeral joint style NOT cvd. Cvd's are only good to about 50* while a universal can be clearanced to turn 70*. The further from straight you turn the more wobble there is at the tires as the ears of the axles speed up and slow down while they rotate. That speed change is the chatter. Stock style ar44 knuckles only allow for about 48* angle so there shouldn't be any issue with breakage. |
12-25-2017, 11:04 PM | #11 | |
RCC Addict Join Date: Apr 2009 Location: LA
Posts: 1,662
| Re: Why is my axle chattering? Quote:
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12-25-2017, 11:26 PM | #12 |
I wanna be Dave Join Date: Aug 2004 Location: Tri-cities, WA
Posts: 4,831
| Re: Why is my axle chattering?
Flip the rig onto its back and turn full lock either way and hold slow steady throttle. The tires speed up & slow down as they rotate which throws them into a tizzy. Its hard to see unless you're going real slow.
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12-26-2017, 01:03 AM | #13 |
RCC Addict Join Date: Apr 2009 Location: LA
Posts: 1,662
| Re: Why is my axle chattering?
Yeah I saw that in the video referenced here: http://www.rccrawler.com/forum/general-crawlers/593097-driveshaft-phase.html#post5778506 Interesting stuff! |
12-26-2017, 01:48 AM | #14 | |
RCC Addict Join Date: Nov 2016 Location: 1972 born Christian, Chinese.
Posts: 1,321
| Re: Why is my axle chattering? Quote:
FBA axle shafts | |
12-26-2017, 09:17 AM | #15 |
RCC Addict Join Date: Apr 2009 Location: LA
Posts: 1,662
| Re: Why is my axle chattering?
Thanks Teng. I'm looking into that. |
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