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Sudden tire wobble.

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scavind

RCTalk Racer
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Staten Island NY
RC Driving Style
  1. Bashing
I have a e-maxx running big joes on mambo rims. I've had the pair since early february 2009. I've glued the tires a couple of times as needed and they have been working fine untill now. The last time I drove it the right rear wheel started wobbling during the run. Didnt jump at all this run. I was trying to wake up my batts. I looked at it and moved it by hand from side to side. Looked at it didnt see anything wrong with it. Drove it two more lengths of the parking lot and the tire still wobbled. I took it in and inspected it further and still nothing. Then I swithed the wheel with the right front and the same wheel started wobbling on the front. It looks as if its pivoting on the rim hex hub but it's tightened all the way down. I have no idea why it's doing this. I havnt drove it in water in over 1 and a half months, got as much water out as I could and the truck hasnt been driven in about 3-4 weeks so the batteries werent awake and the truck was going very slow. Can anyone help me with this?
 
Last edited:
It does sound like you may have water in it still.

I drill two clean holes in the centers of my tires at 6/12 so centrifugal force can fling the water out. I run a lot in the winter and on dewy grass in the mornings, so this is pretty much a requirement for any of my running.
 
I just tried that. I have 4 holes in them and not that much water came out. I think the rim is out of shape:\ or not spining true. It looks like it has been twisted so that it wobbles from side to side when it spins. Any idea on that or how I can fix it.
 
I see no cracks. Ugggggg...Is it possible to stuff the tire and let it sit for a while with the stuff in it so it will go back to a circle again?
 
How would you get "stuff" in it and out of it?

With the tire/wheel off, and rolling with gentle pressure pushing on it with your hand, do you notice any flat spots or bumps? Wondering if maybe your foam got jacked up. I've had that happen, then it bunches all up and usually makes a hump where the bunch is and a flat spot where it isn't.
 
I mean like this.

goodrim.jpg
[/IMG]

Stuff with anything I guess...Maybe one of those large rolls of tape so the rim can form around it. I'm sorry, I suck at paint. Ill try the rolling thing.
 
Oh, you mean the actual wheel. It doesn't make sense that the wheel was round one day, then not round the next. Unless you ran over it with a real car in between. ;)

The foam issue is probably more likely if your not finding any cracks in the wheel itself.

Nice artistry by the way. :)
 
Hehe. Thx for compliment:) I rolled it and didnt feel any knots in it. I thought maybe rolling it would help? Maybe it needs a massage. Idk. If that doesn't work ill just take the tire off the rim and see whats goin in there. Thx for all your help, very appreciated.:D
 
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