a couple of " anyway to fix this problem " questions
 

first problem is: my right tire/wheel on the front side and my left wheel/tire on the rear side wiggles.
if you grab the tire and wiggle it, it moves more than the others. its that type of wiggle where when you dont tighten the pillow balls tight enough, and you know how the tire will wiggle? but i can tighten them all the way and it will still wiggle? it moves where the yolk from the driveshaft and the axle carrier is. does the mean i need a new axle carrier?

my second problem is: one of my tires spin in a wierd. its not unbalanced because it doesnt spin lopsided or anything but picture this....i mark the center tire with red paint...( just like them new vantage tires ) instead of the red line spinning straight, it would spin in a squiggly line. all my other tires spin perfect.

sorry for the long post, just trying to be as descriptive as i can. please all help will be much apprecieated. if i was to have any petpeeves on rc vehicles...i only have two, and im having both of them right now..haha

Maybe you just need new bearings?

The first problem sounds like bearing slop like BLboy16 suggested. If the pillowballs are tight and the tire is fully seated on the hex, then that's the only explanation I can think of.

For the second problem, is this the same tire as problem #1? If not, and everythign feels tight, I wonder if the end of the shaft is bent a little.

great minds.. i thought of the bearings but dint think they can deform. if i was running bushings..i would have gotten them replaced already. but ill try changing the bearings from the "good side" wheel/tires and see if that works. do i change the big bearing or the smaller outter one?
and everything is tight on problem 2. and another good thinking about the shaft being bent. if it is, do i have to buy a whole new driveshaft. or do they sell just the shaft/yolk part?

Once you inspect the bearings, it should be fairly obvious what the cause is. If it were me, I'd replace both bearings if that's the issue.

Without knowing what vehicle you have, it's hard to know what driveshaft you're talking about. :wink:

Don't you have the 3905? Is so they are called stub axles, part #5454.


http://www.buytraxxas.com/product_in...oducts_id=2121

good memory haha. yea i have the 3905. wow you guys suggested bearings before i even stated the 3905...i guess this is a similiar problem for any vehicle.
thanks for the link. gosh, is there anyway i can tell if the shaft is bent first before i purchase the new one?

for #2. did you take the hex hub off the stub axle and check out the pin ? Kinda random, but using stock hex hubs and flipping down the street I used to bend 'em so bad I couldnt get 'em out without channel locks. That bit of bend caused a tad of wobble that would exponentially increase as I pulled the throttle. (obviously), goto 17mm !

the pins are straight.

problem one is solved. it was the bearings! i took them out and inspected them.. i couldnt see anything wrong with them. but when i spun them with my fingers, they felt gritty. like i feel a slight vibration and it also made some noise. i replaced both of them bearings with the ones i had in the back (since im going to get the rpm true tracks anyways, i wouldnt be needing them) and voila...wobble is to a minimal now. how does this happen with the bearings anyways, can i still fix my bearings...doesnt look warp in anyway, just seems dirty.

Well, since the inner and outer diameters probably aren't changing, I would say the "walls" that hold the balls steady (no comment from you lincpimp!) bent out causing them to shift from side to side. Check the lateral "give" on them.

it seems like the inner wall has slop moving up and down. oh well. not too worried bout it since its fixed now.
problem 2 is either the tire or rim problem. i put the bad tire/rim on another axle and i used the same hex hub and stub pin as the good tire/rim and same problem...spins in the squiggly line. i put a white dot on the tire to let me know which is the top and bottom of tire, disconnected one of the driveshafts, put the tire onto the axle and spun the wheel/tire by hand. the tire will stopped in random spots...white dot sometimes on top sometimes on bottom etc .. so this let me know that my tire is balanced...if it was heavier on a certain side. the heavier side should have always stopped on the bottom. i hope you guys understand what im saying. so can it be that my tires were glued crooked or something..or maybe the foam inside? anyway i can fix this problem? i glued the other 3 the exact same way and those are perfect. any suggestions?

Maybe the foam inside shifted?

actually, the tire is unbalanced. i guess the white dot thing didnt work as planned. i think the tire is heavier on one side because when i just have this tire installed, and i lift my truck with my hand and give it throttle, the truck would shake more than usual. but when i take that bad tire/wheel off and have just replace it with another tire/wheel, the shaking would be ALOT less. take note, i only have the front two tire/wheel installed.
why in the world would it do this, foam shifted like you said brian? if i boiled them , would that mess up my foams?man, maybe cus of the duct tape i put inside the tires...i might have done it bad or sumthing ..

Dunno. I do know that foam breaks down after a while, especially if it got wet at some point. Another reason why I wanna get air-filled tires...

hmm... ill just let them be then. if i boiled them to reglue, it might cause more havoc. these foams and wheels, and tires are brand new. never went in the water with them. at least i cleared up one out of the two probs. thanks for all the help guys!!

Lol like this? http://www.youtube.com/watch?v=1xJZCggE4e8

Duct tape balls up - reason its not recommended. Use 3M strapping tape and degrease the inside of the tire before you apply the tape. You have one wheel where the tape has balled up or come loose and bunched up with the liner. The others will prob follow suite before it over. Duct tape can make a mess inside of a tire!

balance the wheel/tire.

great...next time ill use 3m strapping tape. how do you degrease. i cleaned them with soap, is that good enough? how do i balance the tire/wheel now that i have them glued already. can i do this without having to buy a wheel balancer? and what if it is unbalanced, how can i balance them...put strips of tape on the inside wheel to counter wieght distrubution.?

lead tape works best if you can only put weight on the rim (ie tires already glued)

And as for degreasing, metho usually does the trick. I've also use soap/water successfully, just rinse it good and make sure its dry.

I use denat alcohol for degreasing tires and wheels prior to glueing. Sounds like the soap and water was ok on 3 of your 4 wheels, but for some reason the one you're having probs with, it didn't work as well.

Anything that will let you suspend the tire/wheel and allows free rotation can be used as a balancer - look at an airplane prop balancer in somebody's catalog, you'll get the idea. Lots of things used to the balancing - lead tape is prob easiest.

lol, that's cool! Although, I wans't thinking quite that much air! It was funny to watch it bounce, but I think it would do a lot better with a reasonable pressure. And, I wonder why it won't run for more than 20 min? Um...maybe because you effectively geared up like 10 teeth? :sarcastic:

yea that video was pretty funny, but it doesnt look like 12 inch tires to me..more like 8 inch.

yea i heard most use denat. alcohol but i didnt have any, and what is metho. any household products contain that? i used my mouthwash one time cus it said it contained denat alchol.
do you guys think gorilla duct tape would work? i dont have any lead tape. gorilla tape is pretty heavy, or is that still too light to counter balance? ive been trying to do that but its still shaking and offbalanced. this seems very hard, im like trying to guess where i need the strips of tape and its not working. it seems like EVEN if i did put the tape on the correct side, it would still shake and be unbalanced cus i need to ALSO put it in the correct place. i think thats why its moving from left to right as well as shaking.
i seriously thought the white dot trick would tell me where the heavy side is, heavy side with the white dot stopping at the bottom.
do you guys think maybe it is balanced but the tape rolled up to one side of the tire ( left or right of tire , instead of up and down) which is why the white dot is stopping at random places, and the tires is spinning in a squiggly line?

Lol sorry I think metho is what you guys called denat. alcohol. It's methylated spirits, just ethanol with a bee's dick of a percent of some other crap to make it undrinkable to avoid alcohol taxes... use it as a solvent etc.

that was too funny....I will have to use that at work when the situation arises.....