Bad news for alpha 1 gen 2 repair

[Scoop88Cheetah]

Okay so I need some help. SE116 (alpha 1 gen2) noise under acceleration. Pulled gimbal, cleaned it up feels brand new. U joints and yoke are beautiful. This unit is 3 years old. Under whole range of acceleration it omits a whine and vibration. I will post the YouTube link once it's available. Could it be lower unit? Could it be prop innards? Find out next response from one of you fine folk!

 

[Bondo]

Ayuh,.... Drain the oil, 'n look for metal debris,....

 

[Scoop88Cheetah]

Knowing what a damaged bearing looks like in a differential, there is a slight glitter in some spots of drained oil. No chunk no other debris.

 

[Scoop88Cheetah]

Here's the video!
https://youtu.be/tmFH7fFOAgQ