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05-12-2011, 10:53 AM
| #1 |
| Quarry Creeper  Join Date: Dec 2009 Location: Hughson, CA
Posts: 233
|  Motor glitchy at low speeds
I have a tekin 55, outcry esc, cc bec, 87t, 15t, and a flysky gt-2. When I go real slow the motor starts to bounce a little like it's not gettin smooth power. Drive train is smooth cant feel any binding. Where could i start lookin for problems? Thanks
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05-12-2011, 10:56 AM
| #2 |
| owner, Holmes Hobbies LLC   Join Date: Nov 2004 Location: Volt up! Gear down!
Posts: 20,290
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Could be the low end on the ESC, or it could be your radio. It could also be the comm hanging up on the brushes a bit.
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05-12-2011, 11:01 AM
| #3 |
| 20K Club  Join Date: Jul 2004 Location: Sending illegals home one Hayabusa at a time.
Posts: 22,981
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I would say a combination of 4s and that ESC is what is giving you bad results. That ESC isn't all that smooth in comparison to something like Castle and the 4s is most likely exagerating it. Affordability and good perforamance are not usually hand in hand.
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05-12-2011, 11:08 AM
| #4 |
| Rock Crawler Join Date: Sep 2009 Location: Temecula Ca
Posts: 566
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might need a bec I had a smilier problem and tore apart every thang to find out the my steering was make my motor glitching was caused by my staring servo pulling to much power
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05-12-2011, 11:11 AM
| #5 | |
| 20K Club Join Date: Jul 2004 Location: Sending illegals home one Hayabusa at a time.
Posts: 22,981
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05-12-2011, 11:30 AM
| #6 |
| Quarry Creeper Join Date: Dec 2009 Location: Hughson, CA
Posts: 233
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Ya I know I have some budget electronics, just wondering if it could be anything other that oh well. It doesnt ruin my day crawling by no means because I usually don't have to go that slow. Other than that everything works great but I have been scoping out the classifieds for a better and smaller esc, we'll have to see if one hits me just right. John- It's a fairly new motor maybe 2 months old and I have never dug into a motor yet. How can I check the comm and brush connection? What do I look for? |
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05-12-2011, 02:46 PM
| #7 | |
| I wanna be Dave Join Date: Nov 2010 Location: 07456 N. NJ USofA
Posts: 8,314
| Quote:
Dust/dirt can make a brush "hang" and not make good contact to the comm. Brushes need to be ~3/16" long or longer, depending on the motor. Comm (copper colored thing that moves with the pinion gear) should be close to copper colored......if it's black and the edges between "segments" is jagged, you may need to service/replace the motor. Look for the "cutting comm's....." thread here for a LOT more info. | |
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05-12-2011, 02:55 PM
| #8 |
| Quarry Creeper Join Date: Dec 2009 Location: Hughson, CA
Posts: 233
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Are you supposed to break in a new motor somehow? Thanks Charlie-III I'll try that when I get home tonight.
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05-12-2011, 03:03 PM
| #9 | |
| 20K Club Join Date: Jul 2004 Location: Sending illegals home one Hayabusa at a time.
Posts: 22,981
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05-12-2011, 03:12 PM
| #10 | |
| MODERATOR™  Join Date: Jul 2004 Location: Ohio
Posts: 18,928
| Quote:
Specifically, to FULLY seat the brush onto the commutator. If the brushes are new, they likely don't exactly match the diameter of the commutator, and need to be worn in so the entire face of the brush is in contact with the comm. | |
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05-12-2011, 03:25 PM
| #11 |
| Quarry Creeper Join Date: Dec 2009 Location: Hughson, CA
Posts: 233
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Could it be a timing issue? Even though it doesn't look like it could be adjusted.
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