I was getting my K-Line scale Mikado ready to take to my local club, and I noticed this odd whine from the motor. Is this normal?
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Take the screws out of the motor mount, and get some oil on those shaft bearings. Both sides. While you’re there, shoot some grease into the gear well. ….see if that shuts it up,….if not, the motor might be toast,….
Pat
Added oil to both bearings and cleaned out the old grease and put fresh grease in, seems better but still has a little squeak at very low speed, where it has never ran well owing to the little 385 motor.
I know the Hudson has the small Pitmann upgrade, though mine does fine with the stock motor and 7 heavyweights for a couple hours, maybe the Mike just got a crappy motor, who knows…
Some of what I'm hearing could be the motor brushes riding on the commutator. (Yes, these can motors do have brushes!) @gunrunnerjohn has recommended spraying a product INTO the motor that cleans the commutator surface and improves commutation, resulting in improved performance. I forget the name of the product, but perhaps he will chime in.
I believe you mean CRC contact cleaner, I use it often on postwar E units that I don't want to take apart.
Actually, I use Deoxit-D5, it's different than CRC Contact Cleaner.
