Greatly appreciate this - came across something similar recently and wasn't entirely sure if the rotor was supposed to spin free on the shaft or not; this answered the question and a few more.

Also, for all the naysayers complaining about the condition: Without guides such as this, you are needlessly negating the sharing of information that helps make it possible for others to repair these hubs, regardless of condition. There are people who rely on their e-bike for transportation and aren't in a position to afford a replacement, even with an abused hub like this; this guide may be the difference whether they can get to their job and survive the next month. Not every situation is a backhanded flipper.

Furthermore, I don't buy into the fearmongering over safety either. Endless Sphere and EBR have enough threads about failures from hubs with far less abuse; the risk between this hub cleaned up and a mystery used hub is exactly the same. Perhaps less with the rough hub cleaned up, as one gets a chance to assess the condition of the planet pinions during the servicing, rather than being blissfully ignorant of the hub's true condition.

Immediately needs new clutch, new end bearings and you're good to go, assuming the hall sensors are working

This rust/ internal water level was probably due to it being installed upside down with the axle's wire channel up then riding in heavy rain or being left out in heavy rain.

Holy hell i can't believe you got that seized clutch moving. I just learned something. Hammers  apparently fix everything.

Amazing that that water damage did not ruin the electrics in the hub, great video man !!

These hub motors are a real rust magnet. Came across a dozen or so such videos of people using wd40 to clean the mess.

Wow. I've got a locked water and ice-damaged 350W hub motor, which i haven't had the heart to throw out. This could be the start of a useful experiment. Thanks for the inspiration.

Thats the result of leaving your bike in the rain or riding in wet weather , these motors are not water tight , notice no gasket or o ring anywhere , the main housing it self doesnt even have a gasket . Only a fool uses these bikes in wet conditions , seriously electricity and water think about it , the batteries also are not sealed so why take stupid risks . Or waist money ..

In my case, clutch slips, the engine runs but there are no pulls...

5:14 jesus, that's a good size battery ya got there mr! :)

Lmfso at the circlip launching 😅

He need to completely disassemble clean it and grease it be for running it

Great stuff thanks for sharing.

Harbor freight 3 jaw puller set is 40 bucks

do you still need a freewheel tool to get the pinions out? I don't see what is holding the pinions to this motor, do they just slide on?

He need to buy a three leg puller

10:14 it is really bad 😂

Put syntetic chain oil inside the hub,never will sized

Do you need more rings bro?!!!!

Nice work, looks like you cross streams?