Motor soldering

[Ardz83]

Hi guys.
I have a small problem when I take my car out for a little bash the black wire keeps coming off the motor. Is it getting to hot and melting the solder? Or am I just crap at soldering!!

I don't keep it on full throttle alot either. Any help would be great.

Thanks on advance.
Dan

[sosidge]

Depends on how hot the motor is. If it is cool to the touch when the wire falls off, it is probably your soldering. Remember that the key is to apply heat to the wire contact area and flow the solder in, rather than heat the solder itself.

[ch!3f]

list of things to help find the problem,

1 car
2 esc
3 motor
4 gears pinion and spur gear

this will enable people to give you an idea on what can be causing the problem also pic of your soldering after you have done it

[leeleefocus]

Your motor won't be getting hot enough to melt the solder. The two most likely causes are your soldering is poor causing a high resistance joint. This can create enough heat to desolder itself or the joint is so poor it is simply breaking because of vibration/movement when your driving.

Dobber's advice is good for soldering motor wires.

You may not have a gutsy enough iron to actually solder it properly.

[teamorsum96]

i use a 240watt soldering iron and thats 1 tough son of a gun lol great for batteries and motors

[Ardz83]

Thank you all for the replies.

[dobber]

Originally Posted by Ardz83

Hi guys.
I have a small problem when I take my car out for a little bash the black wire keeps coming off the motor. Is it getting to hot and melting the solder? Or am I just crap at soldering!!

I don't keep it on full throttle alot either. Any help would be great.

Thanks on advance.
Dan

I think you'll find your crap at soldering

Heat up the terminal and use a solder sucker to remove the old solder. Heat the cable end too and once you see the solder melt give the cable a shake to remove the excess solder from the cable.
Tin both ends with a bit of solder, heat up the motor terminal and then bring the cable to the terminal. Wait till you see both the solder on the terminal and the cable melt then apply some more solder. Remove the heat, and allow to cool naturally.
Do not blow it etc or it could give you a dry joint. That should do it