6speednissan

My Mini T came with a metal pinion in the toolbox. I used the smallest allen I have and I still couldn't get the little screw out. Does anyone know off hand the size so I can get one tonight? The Mamba 8000 and 3 cell lipo make the plastic gear with no lock screw fly off right away.

Revo_Rash

If i'm not mistaken I believe its a .5mm allen. I tried all my allens with no luck but one that came with my Traxxas revo fits perfect. and my LHS dealer said ihe thinks it is .5mm

6speednissan

Thanks a lot! I'll stop by Auto Zone on the way home and pick one up.

Revo_Rash

I see ya got a revo 3.3 listed in your garage. Check through the tool bag that came with the truck you probably have one in there it's the tiny baby allen wrench..

hands without shadows

How do you guys keep metal pinions with set screws on the mambas? I think mine slips on the shaft.

deanR

make a flat spot on the motor shaft i dont have a mamba but it might help , the guy at the lhs did that with my orion baja motor

Revo_Rash

i've never had a problem with mine slipping. It would throw the stock plastic pinion right off the shaft. I just tightened the hell outta my titanium and keep checking it. Lock tite helps also. or even a dab of some ZAP glue.