dogman wrote:It made sense to me, once a drop of water gets in, it would tend to stay in there.
I just pointed a heat gun on the low setting at my motor for a few hours. About 6 inches away. It finally worked
after that. But I'd rather do that once in a while then drill a vent hole that could potentially let even more water.
Sounds like wet and shorted hall sensors to me and there is an easy fix. These cheap chinese hub motors always rust right to hell.
You park the bike in the fall and go to ride in the spring and the motors are usually frozen solid with rust!
Even if you ride daily year round like myself the motors build up with rust. It is totally impossibe to prevent moisture buildup in a hub motor regardless of the make and design by the simple fact that the heat cycling of use and storage draws in condensation from the outside air!
Thus the inevitable rust. Rusty water is an electrolite and this soon shorts out the poorly sealed hall sensors. To make matters worse, chrystalite mounts their hall sensors at the bottom of the stator and now they are swimming in this solution!
I've ridden 3 winters in a row in Ottawa Canada and I learned the hard way on the correct way to weatherproof a hub motor.
You need a product that is semi fluid so that it creeps and reapplys itself continuiosly to protect the metals from rusting and this includes the tiny hall sensors. So drilling a drain hole is out of the question as all of your protection would spray out as you rode. The water that gets in is not an issue, believe me!
The solution is so easy that you guys may
at this...... Drill a hole mid-way on the radius of the hub cover the size of an aerosol can-straw.
If you've opened your hub, reapply sealant to the mating surfaces. Thats it!
Now get a water repellant lubricant such as silicone spray and fog your motor with it; the hole is great for periodic reaaplication.
My lube of choice is Wurth Film as it is extremely resistant to mixing with moisture and it won't wash off of it's applied surfaces.
I don't even cover the hole with anything, it's so small it's not worth worrying about.
Trust me, this works and your hub problems are gone for good!
Canadian Tire Supercycle Hooligan Frame. Koolstop brake pads.
Dual Chrystalite 408 hubs front and rear. 48 volt 15ah ping battery.
45 kph cruise speed. DX32 Alex rims. Schwalbe Ice Spiker Tires.
Homemade LED lighting. 365 day a year, all weather bike rider!
I buy all my E-bike parts at http://www.ridemore.ca