Solved Motor issue B17

B17islove

Member
hey guys me again , my guillows b17 is all wired up and just about ready to cover. I have run into a major issue though, when I power the plane up and test the throttle two of my motors misbehave. Looking towards the tail it would be the left wing motors. They ran fine until I actually attached them to the frame with everything plugged in, but now the outbard only twitches and the inboard accelerates much slower and kind of cogs. The connections are all soldered, so there's no issue there I believe.
Now I have a theory that the way I've wired the esc may be to blame, they are wired from the battery in a line, from the battery the right outboard being first in circuit then in line to the R. Inboard, left inboard then finally left outbard. The power wires terminate at the esc and motor that do not work. . I drew onto one picture the path that my power wires take, red and yellow instead of red and black. The power cables ended up almost fool long perhaps thats the issue. I am using 4 a1510 2200kv brushless motor, 4 10amp esc, and the battery is 40c 1500mah lipo 3s. Flysky 10ch rx and tx
 

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Bifi.baarlo

Well-known member
I had the same problem, I made de power wires to the esc's to long, if you make these longer, than you must solder a capacitor on the esc, or shorten the power wires and make the three wires between the esc and motor longer.
 

Tench745

Master member
Long wire runs are probably not helping.
Just a thought, you said the trouble started after mounting things to the fuselage. Double check that none of the motor mount screws, cowlings, firewalls, etc etc are touching the motor bells or inner windings.