What is a good isolating medium to use to isolate a rotating part that rubs against a stationary part? I've got a direct contact between the back of the wheel and the side of the motor. I've used clear nail polish to test with, but need a moe permanent idea. Any suggestions?
Seriously? Distance.
If you can, grind down/polish both surfaces a smidgen to see if that frees them. If they are already rubbing, and you attempt to interpose them with anything, you are just compounding the problem. Unless I have misunderstood...
You would be better off thinning the tire by a 1/4 mm and also grinding a suitable channel or groove where the tire currently rubs against the motor. Between the two, you'll double the clearance.
Doh! Increase (or manufacture) the air gap! Why is it the most obvious solution is the one you never think about?
Thanks!
Selector: Thanks for this information. I have the same problem and never thought of this solution. I have a Proto 2000 E unit wheel that contacts the side of the inside truck assembly which is metal and carries current. Thanks again.
Ray
I had the same problem on my P2K Pacific front truck shorting on the front of the lower cylinder (on one side only???). I just filed a shallow spot on the cylinder and problem gone. A little touchup paint and you would never know it was there.
-Bob
Life is what happens while you are making other plans!