How hot is too hot for a motor?

[joeRS4MT]

I just drove through a 2400 battery pack, with a 13x2. The run time seemed good, probably 5 to 10 minutes. The motor seemed pretty hot, though. I could touch it for a few seconds, but no way could I hold it, is this a good temp? or too hot? No bluing on the comm, it actually looked quite good.
Thanks,
-joe

[JoeTheShmoe]

Your motor is too hot when the endbell melts. (it happened to me once)
to make it run cooler you can put a smaller pinion or a bigger spur on.

[TA03 Drive Hard]

LOL i had a motor that went nuclear... lost the endbell like a tsunami =) and the motor was a Speedgem Jade 15 quad!!! lol... i think my batteries were a bit too strong!?! lol

[Grizzbob]

Actually, that sounds about right, joeRS4MT. When geared for racing, the motor can definitely get uncomfortably warm, but the big thing is how thw comm & brushes look. If they're ok, then you're in good shape.... http://www.rccaraction.com/ubb/smile.gif

[crash n burn]

Hey guys im new to electric i have a nitro but i was wondering what the heck is a endball? http://www.rccaraction.com/ubb/confused.gif

[SteveP]

the endbell is the molded (usually) end of the motor where the brushes are installed and the motor wires are attached.

[crash n burn]

Thanks steve i was wondering what it was. http://www.rccaraction.com/ubb/smile.gif

[gubbs3]

If you hava access to a temp probe get the temp of the brush/comm juction and it should be around 140-150. I've seen many electric races use this technique to gear their motors accuratly. It's the same princible as using the temp gun to tune nitro engines.