Why is the kitbot chassis bowing in horribly

[DivideByZero]

Originally Posted by sirbleedsalot

I don't know how much yours is bowing but our metal piece that fit over the transmissions is bowed down, because the transmissions are tipping in. This may not be a kit problem as we have modified the kit and will make supports so that this is not an issue.

If the transmissions are tipping in, why not add a piece of sheet metal underneath horizontally to keep them level? Just an idea.

[sirbleedsalot]

After reading the previous posts we rechecked the bolts, and some of them were loose so that helped. Also additional pieces added to the frame under the motors and elsewhere stiffened things up.

[Charly]

No problems with our chassis thus far, we put it together without a problem. Just yesterday we put in the gear box cover and today got the 4WD working with the electronics.

[Projectchon]

there are no problem with our chassis too, but there are some rought sound when we run the motor (w/gearbox).

[dez250]

Originally Posted by Projectchon

there are no problem with our chassis too, but there are some rought sound when we run the motor (w/gearbox).

Have you greased it with lithium grease yet. If you did, was it a jelly type and not a spray out of a can. I would suggest to use a think lithium grease jelly and not just a spray. Put allot on and spread it around and then run the gearbox, this should work well and get rid of the grinding sounds from the gearboxes.

[Projectchon]

we did put grease on it, i'm not sure what type (not WD-40), is a blue jelly colored grease from motormaster

[Collmandoman]

same thign has happened to us~ we cut some angled aluminum brackets to give some extra support

[Leav]

Originally Posted by dez250

Have you greased it with lithium grease yet. If you did, was it a jelly type and not a spray out of a can. I would suggest to use a think lithium grease jelly and not just a spray. Put allot on and spread it around and then run the gearbox, this should work well and get rid of the grinding sounds from the gearboxes.

we got the can type, do you suggest we just finish off half a can in each gearbox?


how quite is your jelly-filled gearbox? how tasty?

-Leav

[Adam Y.]

Problem was solved. I think they mounted the top bar to tightly and forced it on like that. It is now a nice looking chasis from which we shall practice driving with.

Did lithium grease come with the kit? If so, what does it look like ? =/

[elknise]

No sorry, it was not included in the kit. You should probably pick up a tube at your local hardware store

[Jay H 237]

You can also find lithium grease in your local autoparts store and auto sections of Kmart, Walmart and other similar stores.

[S.Nickens]

Noise in the KOP gearbox is also do to the fact that the retaining rings on the motor shafts grind on the second 50T gear. If you open the gearbox after you've run it under power you'll see a groove in the gear. The ring is harder and will cut away at the gear, robbing you of power and make a horrible sound. Try carefully grinding the diameter of the retaining ring so it clears the the gear.