motor whistles on full throttle.

[Erbing]

I got a honcho and I replaced the motor and esc back to stock (27t, AE-2 esc). The motor makes a whistling sound on full throttle only.(sounds like a turbo..lol). Is this normal?
If it's not, then I'll take out the motor and see what could be wrong.
I just wanted to check here if anyone else had this problem.

Thanks

[motorman]

Check the mesh between the pinion and spur.

[Charlie-III]

I know why it whistles.....it doesn't know the words.....

On to better ideas.....did you lube the bushings/bearings for the armature?
Is the pinion/spur mesh correct?
Do either the pinion or spur gears have chipped/damaged teeth?
Are you sure it's the motor, maybe the trans?

[Erbing]

I don't think any teeth is chipped, I just put in this motor last week and haven't really run it till today. I'll double check again.

Thanks

[rock hard]

remove the pinion from the motor and see if it continues,if so its deffinatly the motor.

[Erbing]

Originally Posted by rock hard

remove the pinion from the motor and see if it continues,if so its deffinatly the motor.

I just did this and it's my motor. This is a new motor, not even a full pack through it.
It work's fine besides the whistle. Does it need cleaning or lube?

[Charlie-III]

I would try lubing the armature shaft support, likely bearings.

[Draggermirage]

These motors have an internal fan built onto the armature. My motor has the same whistle and has gone to he** and back already.

See if the whistle is lessened when you cover the motor can vent holes with your fingers.

Most likely it is this fan causing the whistle.

Marcus

[Erbing]

Originally Posted by Charlie-III

I would try lubing the armature shaft support, likely bearings.

I'll give it a try.

Originally Posted by Draggermirage

These motors have an internal fan built onto the armature. My motor has the same whistle and has gone to he** and back already.

See if the whistle is lessened when you cover the motor can vent holes with your fingers.

Most likely it is this fan causing the whistle.

Marcus

I was actually thinking about this, Is your motor still working?

Thanks Guy's

[Draggermirage]

Yup. Motor is still going as strong as it did the day I got the truck. Granted it has never seen over 2s, it's seen plenty of packs.

Marcus

[Ty@Tekin]

My Axial 27T did the same thing in my Honcho too, had a slight whirring/whistling sound, never affected performance to my knowledge. Still works great!