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Old 10-24-2007, 08:25 AM   #1
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Default Motor Brush Breakin?

Hey guys, I have a few questions about breaking in new brushes on a cobalt 27T motor. I got new brushes and wasn't sure if I have to break them in? Would just a few slow laps around the local track due? I also have the Duratrax ICE charger, it has a motor breakin function is that something that I would use to breakin brushes? If so how many volts for how long?

thanks, mike
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Old 10-24-2007, 09:02 AM   #2
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break the new brushes in at 2 volts for 2 minutes.That should be fine.
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Old 10-24-2007, 09:22 AM   #3
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Some poeple take out the motor's and soak it in water but idk if it work's good bcz im pretty much all nitro...
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Old 10-24-2007, 09:31 AM   #4
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I just broke mine in by rebuilding it then running a battery pack through it on the track. And let it cool down and your fine.
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Old 10-25-2007, 07:26 AM   #5
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Thanks guys the motor and new brushes works great!
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Old 10-25-2007, 08:52 AM   #6
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My Co27 says to break in at 2 volts fro 8 min. That is what I have been doign using my ICE and it's been working great.
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Old 10-25-2007, 08:37 PM   #7
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Personaly I break my motors in at 3 volts for 10 minutes on new brushes and 3 to 5 to just reseat them after a comm skim. I find it better reflects the actual track performance that the motor is capable of when dyno testing.
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Old 10-25-2007, 09:44 PM   #8
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Is it required to break in brushless?
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Old 10-25-2007, 10:07 PM   #9
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Only if your retarded.
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Old 10-26-2007, 03:27 AM   #10
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Old 10-26-2007, 09:55 AM   #11
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gearheadz80,

Yes you want the brushless to completely seat against the com.
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Old 10-26-2007, 10:02 AM   #12
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I do not believe in a set voltage and run in time, but the general rule is the harder the brush the longer it will take to run in, imho.
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Old 10-26-2007, 10:05 AM   #13
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A harder brush like silver brushes run the com out faster be careful.
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Old 10-26-2007, 11:09 AM   #14
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I deserved that one....I'll make a note (Don't ask questions on no sleep and jacked on caffine): eek:
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Old 10-26-2007, 12:04 PM   #15
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For a CO27, you should break it in for 5 minutes (300 sec.'s). Don't worry about re-skimming the com. Then just go out and race it. If your on-road racing at a big race you might want to skim the com after break in.
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