Brushless Motor on go slow!

[dibble34]

Was using the B4 at the weekend in wet/muddy conditions, it was fine until i stopped and then the car would not move and the motor struggled to turn. My Xcelorin speedo was also flashing all the lights, indicating a problem with the sensor cable. I left it in the airing cupboard for a few days and just tried it. Now the ESC seems fine and the green light comes on when i accelerate, but on full throttle the car only just moves. I have tried a new sensor lead, recalibrating the esc and 2 different radio types, all with the same result. The motor is still pretty muddy and my next step is to strip it down and give it a clean. Just wondered if anyone else has seen this before and could offer any advice.

Cheers

Dave

[Battle_axe]

Originally Posted by dibble34

Was using the B4 at the weekend in wet/muddy conditions, it was fine until i stopped and then the car would not move and the motor struggled to turn. My Xcelorin speedo was also flashing all the lights, indicating a problem with the sensor cable. I left it in the airing cupboard for a few days and just tried it. Now the ESC seems fine and the green light comes on when i accelerate, but on full throttle the car only just moves. I have tried a new sensor lead, recalibrating the esc and 2 different radio types, all with the same result. The motor is still pretty muddy and my next step is to strip it down and give it a clean. Just wondered if anyone else has seen this before and could offer any advice.

Cheers

Dave

i would say it would have to be the motor is the esc showing that you are at full throttle when the stick is all the way up?

[dibble34]

Yeah think so, also plugged the esc into a laptop and throttle is not limited in any way. Have taken the end off the motor and can't see anything obvious wrong

[dibble34]

took the rotor out which is meant to be sintered and it has what seems to be a fine coating of glue over it in places??
Is there a way i can use a voltmeter on the ESC connections to the motor to make sure the right amount of power is getting through?

[dibble34]

Think i have sorted it, may not come as a complete surprise, but i reset the Xcelorin speedo and all is well. Thought i should update, just in case anyone else ever has the same problem

[mikeyscott]

Just out of interest what motor is it in the back of your b4?

[dibble34]

7.5, which feels perfect to me