Wheels falling off

[Buggyjam]

Hi

 

I was motoring around my TT02B when one of the wheels went into orbit. All the wheel nuts are working their way loose. This is since going big brushless and using after market drive shafts. I suspect it's occurring during braking and a combination of a finer thread on the drive shaft and still using plastic hexes that flex allowing wheel movement to back off the nuts. Two things:-

 

1/ can anyone recommend some metal locking hexes that replace the TT02b standard plastics? I want the same width as don't wish to widen the track.

 

2/ any recommendations for some serrated wheel nuts that are the same thread size as the Tamiyas? The face on the Tamiyas are smooth. 

 

Cheers all and hope your wheels stay on!

[Tamiyabigstuff]

Try a drop of thread locking compound to see if that has any effect on the problem.

 

[MadInventor]

Just look on ebay for '4mm flange nut', there's  loads of them on there, some are nylocs with serrated flanges as well.

 

[GregM]

If using metal hexes, try those that come with a grub screw to clamp them down.

I've got no trouble with plastic hexes on brushless, though.

The stock Tamiya locknuts are fine and I don't need threadlock on them. I use threadlock only on metal-to-metal threads since they're likely to come loose. Make sure you don't overtighten the locknuts. If they're worn, replace them ASAP, they won't get better over time.

[Buggyjam]

Thanks folks, I'll try these suggestions.

[Zuban]

I'm using the eagle racing universals with the standard Tamiya nyloc nuts and the standard plastic hex's and haven't had any problem so far running my 5700kv motor on 2s

[GregM]

Admittedly, I had a lot of trouble with the locknuts on my Mad Bull, with uses splined metal hexes (also found on Tamiya scale R/C trucks) instead of the usual plastic pin-hole hexes. The problem with that one was the splines on the hexes wearing out rapidly once the locknuts come loose. So on this car I check the locknuts on every battery change, and use fresh ones whenever I have changed the rear wheels a few times.

[Tamiyabigstuff]

You could also try some PTFE tape - plumbers use it on pipe threads - might help and is very cheap. 

[firefoxussr]

I've had this problem too.   Only on the TT02 with 3 cell 

[Theibault]

Mad Inventor is spot on. You can't have enough of these in a tool box as spares.

http://www3.towerhobbies.com/cgi-bin/wti0001p?&I=LXSGZ2&P=FR&gclid=Cj0KEQjw0MW9BRDxtYTn2_S699MBEiQAw33y45xHnOBLKj9bOHG_fvaHRS8akIlozOn-JDVIWCypkPgaAs208P8HAQ