My Feigao 7XL siezed
 

Hey everyone, today after about 6 months in the box i took out my 7xl motor because i finally found a old buggy i had that i figured id put it on. Well even before i bolted on to the car i turned on my esc and put all the settings on low seeing as the buggy only weighs 5lbs, and made sure that the motor still ran. well it did until about 10 seconds in, it decided to go clunk and stop. I dont know what is wrong with it, i have not taken it apart yet i just wanted to ask here to see if it was something simple. The esc still works on my other electric motors but the feigao still wont move, all i hear when i touch the throttle is a little click then nothing. Has anyone had this problem before, can anyone help me, cuz i want to get my bug running asap. I've had the motor less then a year and ran it less then 1 hour total then it just sat in its box. Oh yeah i forgot to mention i bought it here, just in-case anyone is curious.

Any chance of a pic? The magnet may have come off the shaft. What is your setup?

like you want pics of the inside? im worried that that would like void something, but the outside nothing has changed or bulged,, the bearings didnt break. I have a MM with all settings on low, and a 4s maxamps lipo.

Ok, is it the finned can or the smooth can motor? If the bearings look ok, you most likely had a megnet failure, not uncommon.

its the finned verson.

At a guess I would say it has thrown a magnet. I don't know if running these motors with 0 load would be a good idea. Someone with a little more knowledge may know if this is correct or not but I would of thought with no load these motors would spin too fast possibly causing damage to the rotor.

Tim, that is exactly what happens. I am not sure how to get into the finned version. Send Mike an email and see what he says.

does it spin free when it's not connected?... just unscrew the back and check it out... the finned versions are pretty easy to work with.. maybe the front of the motor can popped out a bit.. I would just take it apart and see... my 7xl finned version popped both back and front...

i tried spinning it and it it completely stuck, so i took it apart and the center/ second magnet it completely shattered, oh yeah i was running the pinion but i agree not much load, but i dont understand how 1/4 throttle can even cause a magnet to shatter, i just wanted to make sure that it still moved at all.
http://i78.photobucket.com/albums/j1...r/S7300389.jpg

With out load the motor can spin up very quickly, even with low throttle input. That sucker is toast, time for a new one...

All the more reason to get a higher quality motor.

ouch.!.. that's nasty... but it shouldn't have shattered that quickly...

I've driven a 7XL running in a Revo on 4S Maxamps & a MM ESC, no probs at all & is extremely fast.

I'm trying the 6XL in my BLST.

POOF!

Take some pics after the smoke lets out!

J.

thats exactly what i was thinking, but as some of you may remember i used it in my home made e-revo and i used it less then an hour total so im freakin pissed, that it already shattered. $90 down the drain. isnt there any type of like warranty or something on this? Im just curious to see how many other people this has happened to so quickly.

I have a 7XL.. Get about 10 minute of solid running on it before it reaches such extreme temps I have to shut it down. Tried all kinds of gearing up/down, doesn’t matter, that sucker wants to run 200F degrees everytime. I hate it… Junk if you ask me, not to mention all the failure threads with them. Guess that’s what you get for $60 bucks. I just received a Neu motor (for another rig), hopefully better luck with it..

The Fieago has all kinds of crazy power but simply won't run cool. I foresee a magnet, or bell, or shaft failure in my very near future. One of these days I'll just get pissed and run it until it's embers... :lol:

hmm well what do you recomment i get, its only a 1/10 scale buggy. would an L size motor work better, i only used a Xl because i had it laying around. Any recommendations on a new motor?

Note my comments were regarding a heavier Maxx truck. The only way I could see a 7XL running cooler is either with a voltage that ran less RPM’s and/or much lighter weight rig, although I’m no expert on the subject.

As for light buggy motors, I just bought a Neu 1512/2.5D/F for my Hyper-7. Should run great on 4S, and hopefully nice & cool :intello:

hey xcntrk, u shut it down after 10 mins of heavy bashing or even when ur not running it hard?

10 min of bashing, so that’s lots of WOT, heavy braking, part-throttle, and slow or down time. Not nearly as aggressive as racing, but giving it a good run. It’s just the wrong motor for my setup and ranges from 200F geared low to 220F+ geared higher….bummer…

PS: want to buy a 7XL with only a few runs on it :lol:

Same thing happened with my finned 7xl. Obviously the quality is sub par.

http://i260.photobucket.com/albums/i...fe-maxx041.jpg

Wait so your still running it? at 220+ haha nice, you paid for it may as well use it to the ground

Feigao's are fine motors for what they are. People just ask too much from an inexpensive motor when they toss a low turn version in a heavy truck and expect it to perform. It overheats, explodes, and then it's considered "sub par". Of course it's sub par, it's sub $100. If you use a proper KV for your setup so reasonable gearing can be used to reach a decent top speed, then they do quite well.

That's my 2c anyway. I grenaded the crap out of an 8xl. Not a pretty sight. There are plenty of better motors out there for just a bit more cash if you want to shoot for crazy speed. I just don't feel like a 6xl or 7xl is the choice for high speeds in a truck like Revo, or larger. If the vehicle is that big, and you need to go faster than an 8 or 9xl, then it may be time to drop on a more expensive motor.
.

J.