Maintaining an RC Car Engine

Video Transcript

Robbie speaking for Expert Village. I'm going to talk a little bit about maintenance on your electric motor. Brush motors, considerably more maintenance that's required with them. After each run, if you've been running in a rusty environment, you can stop by your local hobby store and get something like this, electric motor cleaner. Has a little star on it like the WD-40 can. You just spray it inside the motor, flush it out real good, all the dust and everything will come out of it. Most of the time you can get away with doing that. Brushes on these motors do wear. So from time to time the brushes will get worn down, you have to actually physically pull them out of there, put new brushes in, put them in place, replace the springs to get the motor to come back to life. Also, if you want the motor to last, you?ll have to pull the engine apart, you can take it to a hobby store or someone at a race track and actually put it on a lathe and have the car turn with a lathe on it. Then you install your new brushes, your new springs, for the most part you've got you a brand new electric engine. You can turn the engines quite a few times, it's not expensive to do, it's just kind of a pain in the neck to have to pull them apart. Brush motors. In the case of a brush-less motor, like this one we've been looking at, there's zero maintenance. Brush-less motors stay together, you run them, run them, run them, and run them until they don't work any more. That's one of the beauties of the brush-less motor. So very little maintenance. One of the other things that you got to be real careful of also, to get the proper life out of them is making sure that you don't generate too much heat. In other words, you got to gear them properly. There's numerous different sizes of pinions that you can buy for these. All these pinions are going to change the speed that the car runs at. So if you're driving around real slow, you want to gear the car with a pinion, or a lower speed pinion. If you?re going to be doing a lot of high speed runs, you put a higher speed pinion on there. The goal for that is keeping the motor running in its designed operating RPMs, and you'll adjust that with one of the appropriate pinions, and of course tire size on it as well.

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