Ebike Geared Hub Motor Repair: Loud Motor & Loose Magnets (Wired Freedom/Cruiser)
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- čas přidán 24. 03. 2023
- This motor was loud below 15mph. This means the magnets inside were loose. Watch how to repair a powerful geared hub motor with loose magnets.
Shoutout to @TheHowtoDad for giving me the gear puller idea. Check out his channel.
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1. The small rectangular part on a shaft is a keyway not a clip.
2. The pin in the middle of the circlip pliers is to change from spreading to compressing. (Read the directions)
3. The yellowish PCB substrate (fiberglass) insulation between the armature windings and the stacktooth is for electrical insulation between them. A little bit of chipping on the exposed corner is fine.
4. DON"T USE RED LOCTITE if you ever want to take the motor apart down the road. A torch or soaking in solvent is about the only way to break Red Loctite free.
5. The biggest limiting factor of how much current you can run through the motor is the windings. If you melt the coil wire insulation, or fry a coil wire it's over for the motor. Never run more current through a motor than it is rated to handle.
Glad you managed to get it going despite not doing much research into what you were doing.
GREAT comment. Thank You!
Well that is a very comprehensive video! Job well done sir!
Thanks!
Thanks for documenting this.
😎👍
You bet!
This is so informative. Well done 👏
Hope it helps!
Great Info as always digging deeper into fixing my motors! Cracked magnet; hall sensors; mixing motor cores in different casings...and more!
Thanks!
Thanks this is very helpful
GREAT JOB !!!
Thank you my friend
Thank you for this video,The Company in Illinois referenced you when I asked if they have a video of the breakdown of the hub motor to add grease over time for preventive maintenance.I also fixed a PM motor like you did years ago with loose magnets and the only problem is that the glue can be sort of a spacer if there is too much glue behind them,So I used a starrett micrometer to measure the thickness of the magnets from the back of the disc where they are mounted to the face of the magnet and used as a reference the magnets that were not removed to see if the ones that you repaired are at the same position distance.How far the magnets seat in is critical in that the flux density lines can be a counter emf if one is further away from the outer ring they are mounted to.Since you are helping so many people with this video,I felt compelled to share some of my experiences.Good work,Someone upstairs is writing this all down.Cheers.Joe EE/P.E.
Thank you very much for the kind words! I wanted to make some useful content in case others had a similar issue. Glad it helped! I hope I never have to do this again! :D
Wow thank you so much for sharing this with us! I have a Ancheer step thru a couple days ago my hub motor started making a clicking sound when I activate the motor. The whole bike is starting to vibrate but not too rough. I will definitely try this next time it rains outside.
You're very welcome friend!
I have the freedom coming in a few weeks hopefully. thanks for this video. was lucky to find it. according to the owner they have fixed the issue and are repairing or replacing the affected motors. If I have this problem I will probably just fix it myself as well.
How's your new bike?
has not arrived yet. hopefully soon.@@maximumchargeEV
Thanks for the tutorial man. After watching and reading comments i think im just going to sell or run till it breaks completely. Its 3k watt motor and considerably larger then the one shown. Im sure it would get me too frustrated to repair.
You would think they would fix this common problem with the magnets coming loose from this particular motor. Great video! Hope I don't have to refer to this again.
Hopefully in future builds they get it right
Yea i will not keep using the motor.... On pas 1 seemed safe for now to go to work and back but I am so glad you made this video. I am so inexperienced im gonna need help.
You got this! It's not that bad to repair. And once it's done the motor is bullet proof
Luckily I happen to have a pillow case that will work. I feel like I won the 1990’s rare product lottery.
wow interesting.
@@maximumchargeEV TommrybZhuerto
@@maximumchargeEV 😀
Great video! I think i start to having the same sound like in this video, but if i don’t throttle but cranking out instead, the sound will not occur. It is design flaw or bad preparation from factory for sure. It doesn’t look too difficult to reglue those with epoxy. Thanks again
Good luck man! I know you have one of the first batches of wired bikes out there too. Wasn't too bad to fix this.
If you have a shop vise the freewheel is very easy to remove. I secure the freewheel tool in the vise and drop the wheel on top. You simply turn the wheel counter clockwise like a big ol' bus steering wheel which gives you great leverage. Be sure to put some anti sieze or grease on the frewheel threads to make it easier to remove next time...
thanks for video. do you have link to Amazon gear puller set?
That's a 750wat hub motor. You want to try doing that with a 2000wat hub motor the magnets would not crush your fingers it would cut them off. But there is a safe way to dreading the magnets uta a blue paper I forgot the name so when you get stater just slightly liftted you slide this paper in and you can remove by hand. I've done jobs on 2000wat 3000wat and never yes a puller just push down but not to use wheel as it will buckell. I've seen the Chinese do this in factorys and they make it look dead easy. It's conferdance if you don't have it it becomes really hard it's amazing when you no the trick it becomes easy but still watch your fingers. Even a 750wat not be taken lightly as the guy who made video. These videos are good for people who haven't tried jobs like this
I have 3000w... and it's slipping under weight. I think I'm just gonna ride it until it goes. That or sell for a fraction of the cost
My wicked cruiser motor started making this noise last night and i feel scared to ride it so thanks for this video.
Hope it helps you
I sure hoped you marked the magnets this side up so the polarity is correct.
I sure did!
They use nylon gears because they are quieter. The metal/nylon/metal sandwich gears are physically stronger than pure nylon, and quieter than solid metal, so they are really the best of both worlds. My bike peaks at 3,200 watts with enough torque to throw me off and flip the bike, but I've been running nylon gears for 7,000 miles with no issues so far. I do have solid metal gears, but they are so loud that I took them off the same day. The scuff marks on the magnet shell are from the factory grinding off sharp edges after balancing. Good cautions on the magnets, and if two of them snap together, they will likely crack. I lost two magnets that way. Nice job on the regluing, it looks pretty!
Thank you my friend!
Truly there is little to no evidence of the nylon gears wearing down, even when overvolting, the issue is when temps are not monitored and reaches critical softening/melting temps and you get "peanut butter gear". I bought a bike with all steel gears and would consider nylon gears an upgrade.
I have that same computer in my bike shop win 98 for DOS games. Wired Freedom is my next ebike. Don't be scared of that motor. Trust me, I'm a Mechanic 🤣
Is that a 750wat hub motor and how many magnets do 750wat motor have is for setting sw900 display. And are all 750wat hub motor the same inside. Best tip to stick magnet is liquid nails it's for wood and metal. You put a fine scraping on both serface and it works I done this a 2000wat motor 3yrs ago d still going strong yes magnets on 750wat hub motor thanks
Thanks for the video. Same thing happen to my wicked cruiser with less than 100 miles on it. Did you need to change the length of the chain with the new freewheel? What brand is it?
New freewheel does not need a new chain. Once my youtube channel gets verified I will post a link In the description.
Hello friends let's watch carefully now 😊😅
FYI, FWIW - Since I have a Freedom arriving next week (late May 2023), I asked Wired about this via their chat. Here’s their response (other than the pending order, I have no affiliation with Wired beyond being a customer) :
“Wired Ebikes
On the first run of bikes that we produced, we discovered that the factory that makes the motors for us was very inconsistent in their application of glue for the magnets. Once we discovered this, we had multiple discussions with the manufacturer of the motor, and they have stood behind their motor and are giving us replacement motors for anything in our first run that fails. Furthermore, they have guaranteed us that the Current production run, which is arriving next week will not have that same issue. Any of our customers that have notified us of a motor issue, we have either repaired their motor to make it stronger than what the manufacturer would, or replaced it with a brand new motor.”
Fingers crossed -
That's great to hear!
how come that one nigga consious talk ent said they wouldnt give him a new motor? he said they made him send his old motor and then they sent back the same one to troll him lol thats messed up. i think he got the 2nd batch of motor too.
That c clip tool comes apart by unscrewing it and you switch the position to open clip or close. I have a full set of those.
Oh yeah, I learned that later. You live you learn!
Great vid I need to do this to at least one maybe 2 motors. I want to go ahead and reglue all the magnets, any tips for removing the ones that may be glued well already? Would a normal heat gun be hot enough?
I would try to pry something very thin and flat behind the magnets, like a thin putty knife. Work at it slowly.
Do not use heat gun.
Over heat can damage magnet.
I’ve done 3500W in a G62.1000 on 72V
I saw! Epic
Hi, im curious if you contacted wired about this , if they would cover it since the bike has so few miles? I think my 2024 wired freedom may have the same issue, noisy motor under acceleration. My bro has the same bike only 2023 version and motor sounds much quieter under acceleration. thanks!
Send wired a video and they will determine what it is and help you out.
Are the magnets being held in place behind that little aluminum ring they seem to be set down inside of
They are held on by the housing of the motor, the glue, and the pressure of them pressed up against one another. They also are pressed outwards into the housing at speeds above 15mph due to centrifugal forces.
very nice video ,,well done man.,,i want to ask you advise or i have same problem i am not sue,, i got carrera subway e bike and i got this problem that assist often doesnt work ,,motor makes noise but there is no assist ,and then sudenly assist kicks in ,,ant it happenes all the time but onece assist kisks in it normaly works until i stop pedaling
,,what do you think?
Thanks! Does throttle work normally? What kind of noise?
@maximumchargeEV i dont have a throttle ,,noise smooth not like grinding atol ,very quiet like something is spining inside the hub,and once it catches than it makes short loud grinding noise and then works ,perfectly,,
I’m on my 3rd clutch, maybe keep that one gear puller handy!
Wow on the same bike or a different one?
I think i have the same problem on my E.T. Cycle F720.
I put more grease on the gears, and the noise is still there at takeoff.
After seeing this and hearing your noise, I think I have the same issue.
My bike is only 3 months old.
Well now you know what might be broken. Good luck!
They want me to take a 600 dollar bike to a local mechanic. No local bike shops want to work on Walmart bikes.
Local bike shops usually don't work on ebikes at all, it sucks. you have to find a specialized shop, and even then sometimes it's not worth it if the cost of the ebike is so cheap.
Did it help ? I have same noice and planning on doing same thing you did my magnets are also lose
Fixed it 100%. Even put over 3500 watts into the motor and it's still holding up
DId they fix this for the upcoming batch or is it still the same? What a headache if this happens to everybodys bike.
Can't confirm that. I would check with the customer service chat on the website
great video but... I was hoping seeing the motor running
hope it worked out well
All my newer videos are using this motor! Works perfectly
@@maximumchargeEV that’s awesome, I’m going to watch them.
You got yourself a new subscriber!
Some magnet they don't use glue the magnet it's self ke in place because it's a magnet. The poles will be the same that's what keeps them in place if you do put glue on be sure to keep your magnet the way up as you mix the poles up and that will make your motor go slower strange but true I used to assemble these motor. If these magnets have no glue on do you find that strange on all magnets that shoud tell you not to put glue on
So far so good!
Is that motor water resistant? I have one ordered and can’t promise I won’t be in some water
Not sure. I wouldn't submerge it, but some splashes should be ok
hello guys i have a question i have 1 scratched magnet can it make a problem and if you believe yes where can i buy new magnets any idea ?
It should be fine
Hello sir maybe you can make magnet ring😊😅
what do you mean?
This is the BEST video that I have ever seen on the magnets being re-glued. I own a Wicked Freedom e-bike and appreciate your time to help me as well as others. I am just wondering if you sandpapered the outside magnet housing with very fine grit would allow the magnets to stick better under high heat + the JB Weld ? Thank you so much !
Also I would strongly recommend you adding into the title of your post on this e-bike as "Wired E-bike" so others can find you through a search
@Robert Haworth thank you my friend!
Actually, leaving the surface somewhat rough makes for a better gluing surface than that of a fine surface as it gives the glue something more to grab on to. Imagine climbing a vertical wall: if your fingers can find a crevice then you could cling tighter than you could if the area was smooth with nothing to hang on to. J-B WELD is best applied to clean, dry and somewhat rough surfaces. Sometimes, on certain applications, extra holes are drilled so the glue can get an even better foothold.
@@geedub7912 true. I guess it's good that the Magnets scuffed themselves up
@@maximumchargeEV: I'm currently waiting for my new Freedom to arrive and hope I don't have this problem. I have another bike with a direct drive magnet hub motor that does have this problem however but I haven't split it open yet. I either have to pay someone to do it or purchase an expensive 12" puller, that I'll probably never use again, and do it myself. I've serviced the 750 hub motor on my Hemiway Cruiser but only to the nylon gears. Your video was very informative and helpful. TY ~ 🤠 Happy Trails!!!
Probably a dumb question, but would you recommend this bike? I've been stuck between this one and the Ariel Kepler. This one would have won me over but seeing this issue and the fact that the owner of the company isn't really helping people with this issue it's making me lean more towards the Ariel.
I am able to work with tools and engines, but this just seems like a pain to have to deal with. lol.
I would recommend this bike yes. I believe this issue was fixed, and the owner offers to replace the core of the motor for free. Use the chat on their website and talk to him to confirm these two items and you'll be good to go. Very powerful bike I love the kepler but the power of this is what wins me over
@@maximumchargeEV thank you so much for the response!! Looks like I'll be getting this bike!!
@@hakarumonoka happy to help my friend
So did it fix your problem when you ran it . And did you have a problem with putting jb weld in the gaps between the magnets. You said hopefully it's not a problem.
So far so good! It did fix it yes
Kingsong makes electric unicycle, they had a bad motor with the s20 unit, they actually didn't fix the problem, the third sellers had to pay for the fix for thousands of wheels... surprised they are still in business....
WOW that sucks. I hope they learn from their mistake
you don't need extractor at all, at any point !! Just lever with a screw driver for the first and press on the other side for the second part, no extractor needed just a little muscle.
I need experience with doing that is what I need! Thanks for the tip my friend.
@@maximumchargeEVi'm glad to help ! I have repaired a lot of electric bike motors from a lot of different brand. Those motors are easier to open than they seem to be.
I’ve heard of magnets coming loose on these wicked bikes from probably 4 or 5 separate people. Seem like they cheaped out on the laminate
I keep hearing that too. Hopefully they get their act together over with manufacturing
Its probably they cheaping out on the entire build and not using quality components.
@@ActivityPhoto hope they get their act together.
Damn i wish i knew before i bought this peice of crap 😅
@@CONSCIOUS_TALK_ENT. sorry that happened to you. It's otherwise a great motor
Got 75 miles on my new Aniioki AQ177 Pro and it's making a similar sound. added a bit of grease as it was almost a invisible layer, which seemed to help. But noise similar to this video still happens under full load. Crap started comment to early, watched till I saw the magnets loose. Now I REALLY don't want to have to get the tools needed to dismantle motor. NUTS. Not sure what to do.
Maybe the manufacturer can send you a new motor core?
@@maximumchargeEV I decided to run it and see what happens. Much better after greasing. Weird loud Grrrr noise only seems to show at below 5mph on flat or going slow up steep hills. Might be happening controller putting in Max power? I'm going to borrow a camera record it and put on CZcams for people to hear.
@@dailyrider2975 Hey man, I've also got a AQ177 that started making this noise after 10 miles!! And yes it only occurs on the initial start of the motor like the first 5mph. Should i just ignore it?
Also, on a full charge my display is only showing 51.8v instead of what I think should be 54v?
Looks like Aniioki scammed me lol
@@inoribettorwould you recommend the aq177 to a friend? I'm saving up for that bike.
@@inoribettor 51.8v is not correct and I would return it as you're losing a lot from battery and is faulty.
please how can find magnet 😢😢😢
A replacement magnet?
Weird everybody I've seen do this well the 2 people I've seen do this no test drive💥💥🛠️🍔
Hello epoxy can well metal sir 😊😊😅
Yes 👍
I would have gone and did all of them with how much adhesive was in there, which was almost none. Very nice job otherwise.
You might be right!
@@maximumchargeEV can't remember which vid, but Justin from grin said In one of their videos that this is a common issue (lack of glue) and that they once had an entire container of motors from bafang arrive with absolutely no glue, all magnets loose, and they had to open up and reglue every single one. Now consider that bafang is the "big brand" and many kits and production bikes are using other chinese knockoffs of the bafang. 🤦♂️
wow that's terrible. Seems like things are getting better and better thankfully as ebikes are becoming more popular.
@@andrewstephens2687
Always use red n tacky
I used Mobil 28 red aviation grease. Lithium grease is not good for plastic gears.
Manufacturer probably use some cheap ass glue
yeah it honestly looked like there was zero glue behind some of the magnets. They did fix this issue, it was only an issue in their first generation of bikes.
Looks like hell, sealing off those hubs is a better way to go.
It was tedious for sure
The nylon gears are shit. They can't handle hills. Solid steel gears are the way to go.
These are Steel reinforced nylon gears. 100% steels gears are extremely loud
Why didn't you just re glue them all? That's ridiculous!
hindsight is 20/20
Yo under 500 miles my wicked cruiser started making this noise.
Seems to be a major manufacturing defect of that motor
@@maximumchargeEV Damn man.
@@maximumchargeEV Did you fix yours?
@CONSCIOUS_TALK_ENT. yes this video fixed it.
be careful selecting products, some JB Welds will conduct and you don't want that...
Which ones are conductive? This one is an electrical insulator.
i can tell you for sure jb weld stick is conductive i suspect a few others but not tested.@@maximumchargeEV
Holyshit. It’s easier to buy a new bike.
Eh it wasn't that bad. It depends on how mechanically inclined you are to fixing things. I've worked on cars before so this was easy.
Looks way cheaper watching this video than buying a new electric bike. $$$$
What no one tells you is once you change freewheels you will probably have to buy a bigger chain because it will not shift correctly anymore .
This freewheel was fine with the original chain, but just barely. I did upgrade the front chainring to a 60 tooth and THAT definitely required a bigger chain
When you change free wheel to a larger one, it will require longer chain, also might need to change the chain ring if its worn. If Drive train components don’t wear evenly, you can get chain skips and other issues
OMG man, learn terminology and how to use tools. The snap ring pliers can be changed from pinch to pull by moving the pivot point. The little piece you called a "clip" is a key.
Another point is the freewheel sprockets only receive power from your legs, not the motor. So no matter how powerful the motor it will have no effect on the wear of the freewheel when you are working with a hub motor system.
I noticed I could switch the c clip pliers after haha. Rookie mistake. Still learning. I'm aware of the freewheel mechanics with the hub motor, just wanted a better feeling gearing.
Less talking more repair !!
Sorry
But yiu didn't show exactly how you doing everything, how you putthethigs back in. I don't believe you managed to use the gears puller and plastic crate, to remove the planetary gears etc That's BS.
Not sure what to say man. I can't film holding a camera whole working with my two hands.
8:35 so it's better to have weak parts so they can break before the main part does... That is such a modern BS engineer thing to say. This doesn't consider that 90% of the people will simply throw away their motor or most certainly entire bike just because one of the planetary gears have ONE teeth broken... This is just a PURE SHAME and I really really hope that it will stop as soon as possible.
The most majority of trashed hardware comes from this train of thought : let's just take a practical and sturdy equipment and replace some of the part with plastic or other weak material ! But it's for your own safety of course people, not for money NOOOOOOOOO of course not !!
You have a point!
@@maximumchargeEVI'm quite surprised that you admit your mistake ! I was a little bit rough on the edge with my comment. But this modern "philosophy" is enraging. The fact thatEVERYTHING you buy today will let you down for a 0.10 € part is just a pure shame and almost no government are taking action. A little law against planned obsolescence here and there but just for a very small part of the industry is not enough. Our landfill are overflowing with trash that could be working fine. I hate that.
Mine makes that noise!! I figured motor on the way out. Great video Hey just fyi that's a 500watt motor you can tell when you removed it. It's only couple inches thick. Real 750watt motors are double that thick. It's huge scam 1000s people ripped off.
Really? That's interesting. Can you link me to some more info? This motor is way bigger than the 1000w bafang that's in my ariel rider
@@maximumchargeEV Yeah when you pulled it out looked like the 500watt in this video? Look at the difference at 8 min 24 seconds yours looks like the 500w. in this video talks about it. czcams.com/video/IM_Mj-DiU_o/video.html
Is the overall diameter of the motor larger? Also the way the stator is wound has a big effect on the power available in any brushless motor.
@@ActivityPhoto yes the diameter is much larger
@@maximumchargeEV ah ok