FULL Ebike Hub Repair Teardown And Rebuild! - Changing the axle on my Ebike hub motor 

ya...it's always nice to know what's in there.

Awesome! glad you find it helpful. It can be scary when you look at a project as a whole, but most projects are less daunting when you break them into parts. Hope your service goes well

awesome! thanks for that explanation

For clarification not all ebike motors are like this, (most) geared hubs are, but direct drive are not. The technical term is "outrunner" vs "inrunner" motor.

Where I case I ever need a hall sensor, where would one find those? Plus I just bought another e-bike like the one my wife has, when I was pushing it in the shed the back wheel was a bit tight, not real bad, it could be the disk brake or if it is in the hub what could it be? It hasn’t been used for about 4 years, it’s been inside the whole time. It actually has a lot less miles than my wife’s,, it’s an Emmo monster. They are good bikes, only paid $300 for it. Very good shape other than battery’s and that stiffness

My e bike started acting goofy. Just pedaling freewheel works and change stays on. The second I give some power it’s like the freewheel portion of it locks up. Kicks the chain off. I was thinking a loose magnet but not certain. Any ideas? I had just put new meat on it. When I first turned the wheel there was a clicking sound but couldn’t tell if it was that or brakes. LCD no codes

sounds like your windings might have a short. if that's the case buy the same motor and replace the internals. it only takes 10 minutes to do that

I was winging it. figured it out, works great

you gotter!

best thing to do is to find the same motor, just the motor and swap out the internals. most motors are pretty cheap, I wouldn't expect to spend.more than a couple hundred bucks and about half hour of your time

glad it's helpful! if you find a massive problem, it's far easier to buy a motor and just swap the internals

the best, easiest and cheapest solution is to buy a new motor and swap the internals. swapping the internals tales about 10mins

@@TheHowtoDad How do you figure buying a new 350.00 motor is cheaper than the 25.00 axle?!

@@medusa569 the axel cost me $90 and took aomg time to arrive. also the repair took hours to perform. a replacement motor should be less than $350, you don't need the rim, just the motor

@@TheHowtoDad Damn ! It feels like you got took. I hope I have better luck getting my axle or getting one machined.

@@medusa569 good luck finding one. getting it machined will certainly cost more than $90.

saw that too. wasn't necessary for this job.

yup, sounds easy

take the rear wheel to a local bike shop. they will take the gears (cassette) off for you with a special tool

@@TheHowtoDad LOL, went out flipped wheel over large cardboard box of rags, took nuts and washers off of axel and then touched axel to see what was needed next. Motor and axel just fell in the box of rags, I'm so lucky. Just the thinnest film of grease on gears, it was making a weird noise after just 50 miles so I'm hoping fresh grease will fix it. Thanks again!

@@dailyrider2975 ya. clean the old grease off and replace it I'm sure it will be good as new

@@TheHowtoDad Well got it all together and it is working, it is a brand new bike and few weeks before I worked on it. So not sure if there isn't another issue. Still seems to make a bit of noise getting to speed, but then pretty quiet on cruise, definitely hearing a low full power. Maybe it's because its a geared motor, my older regular bike is direct drive and pretty silent.

@@dailyrider2975 how would.you describe the noise?

yessir

you should be able to take it apart to look and see if that is the issue. the gears may just need grease. that's easy to do

Hey Cody! I answer all my comments, even from REALLY old videos! as far as the shop vac method goes, it worked, but a stronger vacuum pump would work better. Something you might try is using the shop vac to pull the bag down and then use a hand pump to pull the vacuum down futher. But, like I said, this worked! If you have more questions feel free to email me hidden bed desk at gee mail

anything is possible, if you do figure out how to mount it to your fork jsut make sure you use a torque arm

I’m 9:28

that's not a bad idea. build it up then rethread it

the wires to my motor were 16 to 18 gauge. the sensor wires were light gauge.

I would 100% agree. a new motor is only $200. and you could easily just swap the internals.

Looking to buy a replacement motor that’s a 52 x 7 50 or 1000 but I can’t find one. It’s for my Ecell bike.

Or find someone that can repair my cable on my 750.

I’m out in Riverside California.

@@johnejohnsoninformationtec8998 cables are fairly easy to fix

unfortunately this bike was stolen...

bring it in to a local bike shop, they will be able to get it off for you

each gear and bearing is held on by a small circlip. Use a pair of circlip pliers to remove the clip and then they simply pull off. DO NOT try to remove the circlips with anything other than the proper tool, you can/will cause damage and can easily injure yourself if you slip.

sorry. I don't know where you could get that.

I did try that. didn't quite work..would have required a lathe to machine the diameter, then die to thread. The moral of the story is: install a torque arm.

you need to contact the manufacturer.

ahh! good question, it's a circlip. you need circlip pliers. available at any car parts shop or online

this is a pretty typical item. best place to start looking is a small engine repair shop. tell them you lost your axle key, and measure the cavity where the axle key fits into to get the correct size

do you mean the cassette?

thanks for the tip!

a motor would have been easier and probably faster to order. just swapping the internals would have taken 15 mins and would have been much easier...lesson learned

Where’s the fun in that 😅.

you'll have to contact the manufacturer of your motor. unfortunately they are reluctant to sell just the axle

the wires are all colour coded. I just matched them up

that is beyond my knowledge...

that really sucks. you might want to look into getting a new motor and switching out the cores. also, make sure to install a torque arm,.or even 2. 1500w is a lot of power...you might try tapping new threads aswell

you will need to contact the MANUFACTURER directly

I contacted the manufacturer directly. It was not easy to convince them to sell me the parts, and the parts were not that much cheaper than just buying a whole new motor. I'd suggest buying a new motor and just swapping the internals. it is MUCH easier, and doesn't cost that much more.

you should be able to do it, but you will need a pair of circlip pliers

I suggest asking a retailer that sells these

there were some sketchy moments...

I don't know...sorry

basically you can't...I had to direct to the manufacturer, and even then it was expensive and difficult to get

as far as I'm aware, no

I got the axle from the manufacturer through a domestic distubutor

sorry...axels are not easy to come by. I had to go directly to the manufacturer, and it was expensive and a bit of a waste of time. I'd sugges buying a new motor and swapping the internals.

I don't have that info... sorry

I would definitely not do that! the throttle sends a signal to the controller, then the controller sends the correct power to the motor. if you bypass the throttle and the controller your motor will probably spin up very fast, then never spin again

@@TheHowtoDad ok, thanks for the response. Hopefully you can shed some light on what's going on with my e bike. It's a front hub assist Jauopay eBay with 48 volt battery. I noticed my front wheel was loose so I tightened it but I think I over tightened the nuts on the motor wheel. It worked for a second and then stopped working and all I get is a click from the wheel. My dvom shows 57 v from the battery using pins in the wire, when I snap the throttle no drop in volts or break in connection from the dvom. Am I reading voltage from the module to the three wires? My throttle seems to be getting 4.5 volts but I get no voltage to the bigger three wires to the hub motor with throttle wide open. I did the simple test of touching the wires not connected and got a drag and resistance with no drag, I don't know what I'm looking for but I'm fairly good with the dvom. Hope you can help.

@@tommyhajimoto6968 start with the easiest problems first. Check all your connections. Unplug and plug them all back in, use silicone grease on each connection. Check that the pins in the plugs are where they should be. next step would be to check the throttle, may need to be replaced. it could also be your controller. if your controller overheats it will stop working and will need to be replaced. It may not be your motor at all, it is likely something more simple

@@TheHowtoDad yeah I'm hoping it was coincidental I did have the bicycle upside down and the throttle could have been damaged.

@@tommyhajimoto6968 I hope its something simple like connections