Steve,

Early on I found this from auto-gyro.com: AG-SB-2017-05-B-EN: IVO-prop gearbox overhaul
They were having the motor failures and suggested gear box re-lubrication. I did that per the bulletin. It did not help that I could discern.

Quote Originally Posted by Slyfox View Post
since I cleaned and switched out the lube in the gears in the system (in front of the motor) I have had very good luck with my motor, not to say I won't, I have another motor that I'm going to now open up and look at the armature and glue for future use. I would definitely be cleaning the gears and putting the grease that I stated above along with the glued armature. My prop now changes very fast and will go to each stop where it wouldn't with the lube that IVO put in. I also found the 3 little gears closest to the motor was wallowed out in the center that rides on the pin.