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Old 09-15-2014, 01:04 AM   #1
Meatball_kr
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Default Visionaire moater fail no correct testing eqwitment need help

On my visionaire I was flying and the moater went out just like that on the glide bake in I hit the throtal the moater spun but had no power it made a pulsing grinding sound but after a check a barring was not our nothing was hot everything worked except for the moater on the ground I hit the throtal agen and the same weird pulsing happend agen getting worse with more throtal I don't know if its the moater or ESC I need some help with this D:
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Old 09-15-2014, 01:47 AM   #2
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Sounds like a low battery.
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Old 09-15-2014, 02:23 AM   #3
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Battery was charged and tested day befor
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Old 09-15-2014, 04:17 AM   #4
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Still could be a weak cell. Did you check the battery voltage under load? Do you have a wattmeter or other way of checking the voltage while doing a run up?
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Old 09-15-2014, 11:17 PM   #5
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I do not i flew at about half throttle I heard that that is when the ESC gets the hottest
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Old 09-15-2014, 11:20 PM   #6
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So maybe it's a bad ESC the motor almost sounded gravelly and spun kind of e radically with throttle
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Old 09-16-2014, 01:36 AM   #7
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Does the motor spin smooth by hand? Possibly a loose magnet.

Hard to troubleshoot the sound without actually hearing it. A stuttering motor, if that's what it is, I understand can be caused by a bad connection in one of the 3 wires between the esc and motor. Could be anything from the solder job on the wires to the esc circuit board to where the wires go into the motor, and anything in between.
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Old 09-16-2014, 04:01 PM   #8
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Check the back of the motor. The coil section turned and the rotor caught the wiring and pulled it apart.

Gord.

Gord.
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Old Yesterday, 12:55 AM   #9
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It spins free and I tested it today at full throtal for a few seconds and it worked just find I did not run I long enough to get enything warm thow or fly at all kind of confused about all of this and
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Old Yesterday, 01:01 AM   #10
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Originally Posted by Meatball_kr View Post
It spins free and I tested it today at full throtal for a few seconds and it worked just find I did not run I long enough to get enything warm thow or fly at all kind of confused about all of this and
As previously mentioned in this thread, you might consider purchasing one of those wattmeters for your electric models.

IMHO, flying an electric model, especially when different props and or battery cell counts are involved, is comparable to those oil pressure idiot lights now used in automotive engines.

You've got zero idea on how hard that motor and its battery pack is pulling.

I can't vouch for the Hobby King stuff, but at $20, this unit is cheap enough.
http://www.hobbyking.com/hobbyking/s..._analyzer.html

DennyV
Retired and the days are just too short, busier than ever!
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Old Yesterday, 01:55 AM   #11
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These guys are the greatest. Good advice.

Tom
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