If you need to push the car to get it to start that means you could have a faulty phase. Make sure your solder joints are good on both motor and esc. It is possible to run a 3 phase motor off 2 phases. Sensored or unsensored wouldn't matter. No speed control can detected the manufacture of the motor all it sees is the resistance of the motor. This is a motor issue. I bet you if take them apart the stators will have some damage.

I appreciate the help guys. I have literally spent days trying to sort out this issue.

Would there be a reason why they run fine on the rx8? i ruled out the motor after buying a 2nd one and having the same result. Would there also be a reason why they wont run sensorless when the other motors I have will. the ONLY reason I am trying sensorless is to rule out the sensor board.


I have tried the killshot sensor end cap assembly on the Max ( not even sure if that is compatible) and it did not work. I also tried swapping in the rotor from the killshot to the max. I really want the r10 to work because I own 2 of them with the programming board etc.

IRRC both the tekin and castle escs will default to sensorless mode if it can't read the sensors.


It could be a wiring issue too.

One thing I did notice was that turning the max to the same position every time will allow it to start. It just never happens to stop on that "phase"

I will ohm out the motors to see if I can find something that stands out. With as many times as I have soldered these things I am ruling out a soldering issue. They are running through solid bullet connectors for easy motor changes and the r10pro ran the Killshot fine all day yesterday.

I keep coming back to how perfect they run on the rx8.

UPDATE

Problem solved. I did not remove every variable and missed a cold solder connection or one that may have overheated once and came loose that was under heat shrink at the male bullet.

I kept transferring the wires themselves at the motor "assuming" the bullets were fine when I was actually transferring the problem from motor to motor !!! When I tested the rx8 I did a direct solder as it was on my pro 4 truck.

Thanks guys for all of the help and making me think harder.

http://www.rctech.net/forum/radio-el...ef-lesson.html

:p

haha thanks. As many know, a weak connection between bullets will create heat and unsolder a joint which is what I believe happened. When it cools back down it can make a poor solder connection or what I would call a cold solder. That's my story and I am sticking to it:)