Weird Movement from Motor Plate

ESK8 Mechanics
#1

I went out on a ride today and noticed some weird sound coming from the motor plate. The mount is hooked up fine and i don’t think belt tension is bad, see video for what the tension is like, but there’s just this in and out movement on the mount when i am acceleration or carving to the right. I’m not sure if it’s the pulley of if my bearing is shot/core is bad. No idea what it could be. see video for reference. I don’t think it’s normal as it wasn’t doing this before. Only thing i changed on both motors was the angle that they sit at. I angled it a little bit more towards the deck for more clearance. Any help is appreciated

Video; https://drive.google.com/open?id=13TzeNw_2Ymx0bsm0QvjLxft8uUZ3Xtw1

#2

Looks like the motorplate bends. Are you sure your wheel pulley is nicely centered? Do you feel different belt tension when you turn the wheel? Maybe you got a little rock stuck into your wheelpulley?

#3

Hm… what would the problem be if it was different belt tension when i spun the wheel? like what would be the best way to remedy that situation? because visually the pulley looks very aligned and i don’t think a rock is stuck there, i will still check later tonight. No pulley teeth ground off, looks good as new

#4

Could be the motor can or the shaft is not straight.

#5

Try swapping the left wheel for the right and see if the problem moves to the other mount.

#6

I agree. Looks like a misaligned pulley. Or, a small pebble in one of the pulleys, but it looks to clean to have been ridden. :grinning:

#7

That’s pretty tight tension. That can stress the motor shaft and may cause it to bend, or warp the bearings, which would result in an uneven can when spinning.

I would decrease the tension. Belts, especially wider belts, don’t need to be very tight.

VideoToGif_GIF

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#8

your wheel pulley is waaaay off

#9

How so? What’s the best way to adjust?

#10

Loosen your belt. Slide motor closer to wheel.

#11

Like the motor mount? / motor plate?

#12

The motor. Loosen the screws that bolt to the motor, slide the motor back so belt is looser, then re-tighten motor screws.

#13

How about for the wheel pulley? Apparently it’s very off alignment. Do you think the same?

#14

I think your motor pulley is fine. But the shaft it is attached to is slightly bent. It can only be fixed with a new shaft or new motor.

I’ve done it, caused by a tight belt.

Sorry, just saw you said wheel pulley. I doubt it’s the wheel, but worth a check. Looks like the imbalance is coming from the motor.

Edit: just watched again, could easily be the wheel pulley.

#15

take the pulley off, then see how true the wheel spins

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#16

Alrighty I’ll send a video here soon!

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#17

I have a bad feeling your wheel isn’t spinning even close to true :confused:

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#18

Would switching with another wheel on the set be fine? Or do i have to purchase a whole set? Or purchase new pulley?

#19

first see if it’s actually the wheel or the wheel pulley, it it is the wheel, then ya, just grab one of the front wheels and switch it out

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#20

Yo Greco pm me your number lemme Skype/FaceTime you in an hour or two. Let’s see if we can work this out

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