After some 3000 km, this mid-drive motor is grossly overdue for some maintenance. I can see the specks of eroded metal mixed in the dark, gunky remains of whatever factory grease they used in here.
I don’t know where locally to get the Mobilegrease 28 that everyone recommends, but I did find some high-temp white lithium from the auto store. But just removing the old grease has already consumed half a roll of paper towel. And I can’t exactly dunk a motor into gasoline as degreaser.
I’ll carry on wiping.
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Use brake cleaner t9 get the grease out, and an autoparts store should have moly28, if not check tractor supply/a farm store.
I’ll have to check the local Tractor Supply Co. Thanks!
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I misread tour post. I thought you needed molybdenum grease, but no, mobile28 is aviation grease. I dunno where you’d find that brick and mortar, but aircraft spruce carries it if you wanna buy online.
https://www.aircraftspruce.com/catalog/eppages/mobilGrease28.php?clickkey=613631
And I can’t exactly dunk a motor into gasoline as degreaser
Why not?
Probably fire and explosions and sadness.
There might be some plastics in there the would take that personally.
Not the sadness!!
Not when it is off and the power is disconnected.
I was thinking more like if there’s still some petrol left in the nooks and crannies when it’s turned on and the power is connected.
but maybe it’ll be fine.
but maybe not.
all I know is that electricity ignites gasoline.
When they stuff it full of new grease any gas that didn’t evaporate will be pushed out.
They will be fine.
Inside a gasket-sealed motor housing, gasoline that remains stuck inside would have nowhere to evaporate to, and would dissolve and interact with the new grease. Plus, stuffing a motor housing full of grease would be more relevant for marine applications, where the grease keeps water out. But in a land vehicle, the grease just needs to coat the moving parts for lubrication. A correctly-chosen grease won’t fling off the gears at high RPM.
I think for gasoline, it is so volatile that it will readily evaporate from all cavities if shaken out and left to dry for a while. But during this time, the vapors must be managed because it’s all combustible. Still, I’d rather not do that unless I have to, and the brake cleaner suggestion from earlier would still be an easier idea.
I should clarify that when I say “motor”, I mean the motor housing plus the stator, as I can easily remove the electronic control board, the rotor, and the intermediate and final gears. The housing appears to be cast aluminum so that alone could be submerged, but it’s the stator that I’d rather not have in gasoline.
I have no idea if the insulation on the windings or the glue attaching the stator to the housing would dissolve in gasoline. And removing the stator seems to be more effort than a toothbrush and brake cleaner.
What kind do you have, the e bike? I’m in the market
I have a dual-battery Bikonit MD750, but I really wouldn’t recommend it as it’s an older design (circa 2022) mid-drive ebike. There are newer models that have the same (or more) power while being lighter and quieter. My particular use-case was to have as much endurance as possible, hence the dual-batteries.
