Ebike shaking and rear hub motor making weird sounds.

[amberwolf]

Since there's no apparent motor wire damage, then the next place to investigate is that box.

Please post pics of the box and the wires inside it; they may help us help you find the problem.

For instance, if the wire that is not connected is the "phase speedo" wire some controllers have, that is rarely used, it's actually a tap off one of the motor phases. If that is intermittently shorting (from vibration) to something (like the box itself if it's metal, and connected to some other voltage potential or ground), it would also do what you describe.

 

[Jakolanternn]

Since there's no apparent motor wire damage, then the next place to investigate is that box.

Please post pics of the box and the wires inside it; they may help us help you find the problem.

For instance, if the wire that is not connected is the "phase speedo" wire some controllers have, that is rarely used, it's actually a tap off one of the motor phases. If that is intermittently shorting (from vibration) to something (like the box itself if it's metal, and connected to some other voltage potential or ground), it would also do what you describe.

Hello! The wires are a bit of a mess right now so let me know if this doesn’t do it for ya and I’ll get back to you in the morning with a picture of them separated and a little cleaner looking.

 

[Jakolanternn]

Forgot this

 

[goatman]

if your bike has a throttle, id be tempted to flip the bike upside down, give it some throttle to get the tire spinning and slowly pull on the rear brake lever and give it more throttle while pulling on the brake.that might reproduce the problem to see if the gears are stripped inside the motor

 

[amberwolf]

The wires are a bit of a mess right now

Are they different than they were before? If so, what specifically is different?

Remember, changes are usually the cause of problems, or the cause of them going away.

Anytime a change to the system results in a change to the behavior, they are directly related and you have found the cause of the change.

This is the very basics of troubleshooting.

The next basic of troubleshooting is that you need to note down every single detail of every single change that is made, and the resulting change or lack thereof in the problem.

Then the next basic is that if you are getting help, you must tell every single detail of every single change that is made, and the resulting change or lack thereof in the problem, so that those helping you can actually help, and time/effort is not wasted on tracking things down. If you're already doing this, kudos to you, because almost no one will ever do this, and it makes it nearly impossible to help them fix their stuff. (dealing with that sort of thing for years is what makes people like Angrybob angry)

So...were the wires already taped up like that before you opened the box?

If not, what exactly changed in the system when you taped them up?

If they were already taped up like that, you probably need to untape them to check teh connections, because the problem you are having is a connection or wiring fault.

(based on your report that opening the box changed the problem, something in the box (or passing thru the box if it was moved) must have been moved by removing the cover, since putting the cover back on made the problem come back).

 

[Jakolanternn]

So...were the wires already taped up like that before you opened the box?

If not, what exactly changed in the system when you taped them up?

If they were already taped up like that, you probably need to untape them to check teh connections, because the problem you are having is a connection or wiring fault.
[/quote]
Yes they were like that and all tapedwhen I first opened it up, and gotch ya. I will untape them in the morning and check it out, then report back to you.

 

[Jakolanternn]

if your bike has a throttle, id be tempted to flip the bike upside down, give it some throttle to get the tire spinning and slowly pull on the rear brake lever and give it more throttle while pulling on the brake.that might reproduce the problem to see if the gears are stripped inside the motor

Will give this one a try as well!

 

[Jakolanternn]

The wires are a bit of a mess right now

Are they different than they were before? If so, what specifically is different?

Remember, changes are usually the cause of problems, or the cause of them going away.

Anytime a change to the system results in a change to the behavior, they are directly related and you have found the cause of the change.

This is the very basics of troubleshooting.

The next basic of troubleshooting is that you need to note down every single detail of every single change that is made, and the resulting change or lack thereof in the problem.

Then the next basic is that if you are getting help, you must tell every single detail of every single change that is made, and the resulting change or lack thereof in the problem, so that those helping you can actually help, and time/effort is not wasted on tracking things down. If you're already doing this, kudos to you, because almost no one will ever do this, and it makes it nearly impossible to help them fix their stuff. (dealing with that sort of thing for years is what makes people like Angrybob angry)

So...were the wires already taped up like that before you opened the box?

If not, what exactly changed in the system when you taped them up?

If they were already taped up like that, you probably need to untape them to check teh connections, because the problem you are having is a connection or wiring fault.

(based on your report that opening the box changed the problem, something in the box (or passing thru the box if it was moved) must have been moved by removing the cover, since putting the cover back on made the problem come back).

Alright I took the tape off of them all, everything seems to be connected just fine. I can’t see any damage to any wires.

 

[AngryBob]

I'm going to give you the response I have been using for over 20 years.

Fix it yourself.

 

[amberwolf]

Alright I took the tape off of them all, everything seems to be connected just fine. I can’t see any damage to any wires.

What exactly and specifically does "connected just fine" mean?

Does this mean they appear to be plugged into each other?

Or does this mean that an electrical test across the connector shows normal near-zero resistance?

Does it mean that all the crimps and/or solder joints are perfect?

I'm asking these things because you aren't giving enough detail for us to know what exactly you have checked, and what you haven't, and it makes it really hard for us to help you find the problem.

You need to give a lot more detail in your answers. If you don't help us, we can't help you.