Eflite Power 32 screams at high power settings

by David
(Mint Hill, North Carolina)

I have an Eflite Power 32 which has never been flown, but is a couple of years old. I installed it in a scratch built Cub and took it to the field to practice high speed taxiing, as I am not yet qualified to try to fly this aircraft.

I have a 60 amp ESC and a 13 x 7 wooden prop is installed, all powered by a 2200 mAh LiPo battery. The motor has a high pitched scream at high power settings.

Thinking the bearings might have been defective I ordered and installed a new set of Boca Ceramic bearings. The noise is still present.

I tried resetting all of the motor related ESC settings with no positive affect. There are no clearance issues, and I have not operated the motor long enough to determine if there might be any overheating.

Any ideas?

Comments for Eflite Power 32 screams at high power settings

Average Rating

Click here to add your own comments

Rating

Bench test
by: rcdude07

Have you tried it on the bench with no prop on? The type of prop and size of prop can create stress and create unique sounds. There's a difference between a metal scratching sound like bearings and or magnets being thrown/bad versus prop sound. I'm assuming also you balanced the prop and hub. Best thing to do is get a video uploaded to YouTube and send us a link to hear it for ourselves.

Rating

Additional comments
by: Anonymous

I have a 13 x 7 wooden prop, balanced. I have also tried a similar nylon prop. Both yielded the screeching noise. Seems to run smooth without a prop.
Question: is there any type of shims or washers used inside the motor, and if so, where. I just wondered if I lost something when I disassembled the motor to inspect the bearings.

Click here to add your own comments

Join in and write your own page! It's easy to do. How? Simply click here to return to Electric RC Airplanes.