Sensoring motors really worth it?

[Venom121212]

It’s not too bad.

1. Remove the circlip. Take note of any little washers/shims.
   
   
2. Attach it to something you can stand on.
3. Yank on motor can.
   
   
   
   
   
4. Tape off, mix and apply epoxy, clean up as best as you can.
   
   

I’d recommend doing one at a time. My putty started getting hard towards the end. I’d use something a bit less viscous.

[xsynatic]

I’m not a fan of the floating flipsky sensors. Might get some putty to put beneath them.

[nomadic_myke]

How dangerous is it when a sensor fails? Has anyone here been tossed off as a result?

[Venom121212]

Sensors only play a role at low speeds. They’re unused at higher speeds so I doubt it would just buck you out of nowhere unless a sensor went out while accelerating at low speed.

[nomadic_myke]

Thanks for you input @Venom121212. That is what I was thinking, but I came across this post from Deckoz and wanted some more opinions:

Jul '19

I used to praise sensors, but they are a failure point. encoder or hall sensor failure will toss you off.

I can live with a little kick push while running sensor-less but if the risk of running them is not serious I don’t see why I wouldn’t use the sensors until they stop working and then just switch to HFI.

[Venom121212]

Hmm I’m busy tonight packing my board up for a road trip or I’d pop it open and try ripping the sensor cables out while full throttling (on the bench, I don’t love you that much lol)

[pixelsilva]

Anybody know how to open 'em cheap stupid Evolve Racestars? One of mine decided to go to Avernum (Don’t have time to buy new ones in China).

I’ve tried to open it but the thing won’t come out. Took the circlip in order to take out the can with the shaft, but seems that the mounting bell is lose and not fixed to the stator, weird. It opens a gap of a few mil but that’s it.

[Andy87]

I can just say from the Ali racerstar motors, if you open them up for the first time they get off a bit hard. It’s normal that the first mm are easier to pull and than it gets stuck.
Make sure the shaft is clean from any loctite or what ever threadlocker.
Fix the motor to a motor mount and than just use more force.
There shouldn’t be anything inside holding/fixing the bell or shaft.

[pixelsilva]

Sounds like something is going to fly across the room when I attach the thing to a mound and I decide to pull up!

[Andy87]

If you have a pulley puller you could just slowly push the bell out.
Not sure if it’s the right word for if. I mean this tool

[pixelsilva]

Oh sure, I got one of those to take pulleys out. Never thought I could use it to pull out motor cans. Nice thinking

[pixelsilva]

Look what I found! Seemed like this one been thru a few tours in Irak. Dam!!

Somehow the mounting cap physical connection with the stator suffered a catastrophic rupture and grinded most of the sensor cabling in the process. Did not found debry or clogging material inside capable of stopping the stator so hard as to break the surrounding connection with the mounting cap (??)