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Zoom › Who is running his Shogun with stock motor?
10-20-2004 05:19 PM  13 years agoPost 1
iskoos

rrKey Veteran

Orlando, FL

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I only got a little over 2 hours; my friend got only 1.5 hours flight time from stock motor. Then the motor died. It doesn't mean it burned out. It just got so lazy that you could barely hover the heli even with fully charged pack. With a fast cyclic input or if you try to do FF, it would sink and touch the ground.
I heard that the stock motor wouldn't last more than 10-15 flights but I was thinking that they just would burn out. In my case, it didn't burn out; it just totaly lost its power and became piece of junk. First few flight was very satisfying though, I would only use a little over half stick to fly the heli indoor.
I did two bad things though; I didn't brake in the engine and didn't use heat sink. I don't know how much they would have helped.

So just wondering did the same happen to you?
How much time you got out of stock motor?

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10-20-2004 05:25 PM  13 years agoPost 2
zoom boy

rrKey Veteran

N.E. Lincolnshire UK

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did you give it time to cool down, at our club we have about eight zooms and each one has had well over fifthteen flights (about 10-15 mins) on their motors, mine has the most at about 30 flights

The motors should last if you let them cool down, but if you are just pluging in another pack right after the first then it may have just overheated, it may also need cleaning, get some electronics cleaner and spray it inside the motor, it may clean it up and restore the motor

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10-20-2004 05:37 PM  13 years agoPost 3
flyjet747

rrNovice

Orlando, FL USA

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not sure that the electronics cleaners will help in this case zoom boy. What iskoos said is correct. If you don't break in the motor properly you may notice significant performace loss out of this stock motor after about 55-65 total time minutes. It's not that we are plugging in another battery pack or not letting it cool down before we fly again. It's just that this stock motor is a piece of crap and doesn't last very long w/o breaking it in properly or using heat sink like Iskoos said.

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10-20-2004 05:40 PM  13 years agoPost 4
Pipefish

rrApprentice

Curitiba, Paraná -​Brasil

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Iskoos, what´s up friend?

You´ve fell or had bump it some times more abrptly? Well take a look

on the motors vents and see if the magnets have slipped down. By

pressing it up about the original place, the motor will breath like before.

Hope this helps

Fear is different than respect !

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10-20-2004 07:47 PM  13 years agoPost 5
iskoos

rrKey Veteran

Orlando, FL

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zoom boy

I had total of 150 minutes that means about 15 flights (each is 10 minute). I never used another pack to fly right after. (I had only one pack at the time). But the motor got really hot that's true. Once I measured 230F. We are in FL
I never tried cleaner and not sure if it would help.
You are saying your friends got 15+ flights. What happened after then? Did those motors lose power as mine did?

Pipefish

I upgraded to Himax 4200 already just having some nostalgia here about my blessed stock motor. that's it
BTW the power I am getting is awesome.

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10-20-2004 08:05 PM  13 years agoPost 6
jetson

rrNovice

orlando,fl usa

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iskoos

how about bringing it to the meeting tomorrow night so we can thrash it about a bit. maybe see if it will funnel under low ceiling. I would like to feel how one flies with your setup before buying one.

Dan

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10-20-2004 08:30 PM  13 years agoPost 7
iskoos

rrKey Veteran

Orlando, FL

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Danny,

I will bring it if I can get done with the governor setting, I am going to try and test fly it tonight. See how is goes.

And if I bring it NO INVERT especially out of your hand please. We have only one meeting room. Don't want to cut the walls

See you there

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10-20-2004 08:51 PM  13 years agoPost 8
vinrx7

rrVeteran

Americas finest city

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damn, you only had 15 flights? I was pissed when i got around 35-40 out of my first motor. I just got the replacement stock motor and all is good again. It has a little fan built in to keep it cool. My first motor didnt quit on me cold turkey, it kind of got lazy just like you described. I kept thinking it was my lipo pack but it wasnt. The heli flight times kept getting shorter and shorter. next thing i know, im getting about 1 min flight times. this was bad because from what i learned, a bad motor could be drawing more amps than it is supposed to. someone correct me if im wrong though. So my pack was getting smoking hot with almost no flight time. it was barely getting off the ground. cheaper to get a new motor (20$) than a new pack(52$).

STUPID TREE!!!

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10-20-2004 09:18 PM  13 years agoPost 9
iskoos

rrKey Veteran

Orlando, FL

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vinrx7

I was thinking just like you. I thought it was my lipo pack. I bought new one and in couple of flights same happened. I was totaly devastated. 2xLipo pack = 100bucks.
Then I was talking to my friend whose screen name is "jetson" he is on this thread too. He told me that it could very well be your piece of crap brushed motor. (He loves brushed motors ) And he was right. It was the motor. I wish they would last longer; I was having so much fun with it.
I am not sure if bad motor draws more current though. It may be true. But with that bad motor I was using only 25-30% capacity from my lipo pack.
And I never tried the one that has built in cooling fan.

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10-20-2004 09:49 PM  13 years agoPost 10
RedDirt

rrNovice

Leeds, Utah

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break in

How are you supposed to break the stock motor in?

RedDirt (Fly - Crash - Repair - Repeat)

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10-20-2004 11:07 PM  13 years agoPost 11
MAILEE

rrNovice

Grimsby UK

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Stock motor

I fly with Zoom boy and have been using mine for around 2 months now and it is just starting to show signs of slowing down. It is in fact just as you describe losing headspeed and hardly hovering after a few minutes. I never broke in my motor but do let it cool between flights For the cost of a replacemant motor I think it has done well considering the work it has to do. I shall be buying a brushless as soon as I can afford it though for the extra power and longevity.

Starting the revolution

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10-21-2004 02:50 AM  13 years agoPost 12
iskoos

rrKey Veteran

Orlando, FL

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2 months?

But it is not about how many months it served you. It's about how much total flight time you got on it.
How many flights did you make in that two months? And how long was your average flight? Can you guess and come up with total run time?
What ever it is, you seem to get good time out of that motor. It sure paid itself off.

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10-21-2004 02:54 AM  13 years agoPost 13
iskoos

rrKey Veteran

Orlando, FL

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How are you supposed to break the stock motor in?
I heard that you need to run the motor under water. I said what do you mean under water and they said you will take it out and submerge it then run it. It sounds ridicilous but that's what I was told. I don't know how but it somehow help the brushes get broken in properly. Then they recommend some sort of oil to use for the brushes. What a pain.

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10-21-2004 01:07 PM  13 years agoPost 14
MAILEE

rrNovice

Grimsby UK

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Run time

Well Iskoos as for run time, I fly it about twice a week on average, weather permitting, and my usual flight times are around 15 mins each. That is a little conservative I must add as I fly whenever I can being in the learning stages. If my maths are correct that equates to around two hours continuous flying with the stock motor, remember as I say that is a conservative estimate though. It is still working at the moment although I can notice a loss of power from new. It will still climb to around ten feet with ease. Hope this answers your question?

Starting the revolution

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10-21-2004 01:35 PM  13 years agoPost 15
iskoos

rrKey Veteran

Orlando, FL

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Well that explains. 2 hours is not much at all. I have had around 2.5 hours in almost 2 weeks. But I was flying everyday.
So basically what I heard is true; those motors last about 15 flights.

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10-21-2004 01:45 PM  13 years agoPost 16
jetson

rrNovice

orlando,fl usa

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for you guys using brushed motors a little trick.
hook up a C or D size flashlight battery to your motor in the direction that in will normally run then submerg the motor in a glass of water for 10 minutes or so. afterwards spray a little wd-40 inside motor to displace the water then use a light weight oil such as 3in1 to oil the bearings . I know it sounds rediculous but since motor brushes ride directly on the armature this will allow a polishing effect at the contact point thus making less friction. this will help increase RPM and reduce radio interference from excesive arching. I always noticed a improvement after doing this. brushless is much much better but for those on a tight budget this helps the peice of crap stock motor.

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10-21-2004 01:57 PM  13 years agoPost 17
turboomni

rrProfessor

East of the Equator

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I did what Jetson says on my 2nd brushed stock motor. First one I didn't break in at all and it started to smoke abit and was very hot and took out a good LiPoly with it. [It swelled bad, the motor overheated ,drew too many amps like short circuting and ruined the pack] Second motor I put in water and ran it with 2 cells till dead ,oiled it. an put a heat sink on it and it has run very well. It ran real well with my TP2100 pack. I went brushless and gave the motor to a friend so he'd have an extra for his new Zoom.

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10-21-2004 04:50 PM  13 years agoPost 18
flyjet747

rrNovice

Orlando, FL USA

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Tricks of the trade

Well we can all learn a little something from Jetson and Iskoos!!!!

Thanks fellows!

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10-21-2004 09:34 PM  13 years agoPost 19
vinrx7

rrVeteran

Americas finest city

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"JETSON, YOUR FIRED!" hahaha j/k.
but that does sound a little crazy. seems like the fastest way to destroy it but i know its correct cause i have heard it before somewhere. i think this will be the last brushed motor i use then im going brushless. himaxx will be next. woooohooooo

STUPID TREE!!!

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10-22-2004 06:56 AM  13 years agoPost 20
brian chan

rrApprentice

Hong Kong

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HI turboomni

Is putting a brush motor under water and then running it in will help ?
If i can, I will try. My new zoom still cannot fly 1 inch above the ground

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