How to repair a Lego Power Functions M-motor

It’s frustrating when the cable breaks on a Lego Power Functions motor, since they are permanently attached there is no easy way to replace them. But if you have a soldering iron it’s actually not that hard to repair it. Here is an easy step-by-step instruction on how to repair a Lego Power Functions M-motor 8883. I am by no means a soldering expert, so if I can do it, you can too!
Music: Parasail - Silent Partner

[@raphi01]

Worked perfectly fine! Though, the clips were so hard to push in that the motor almost falls apart without the screw now😅

[@lucyjones8807]

Thank you so much. First time using a soldiering iron with my 8 year old, great learning experience!

[@i_a_nerd123]

Thank you so much! My lego motor has been broken for years until I saw this vid.

[@Papugod344]

My motor is alive! Thanks!

[@A_Dilophosaurus]

Very interesting

[@awes0men0b0dy9]

I need this but cant open the motor the clips are too strong

[@minhbaolegos_8bp]

My motor have a same problem, the clips it too strong

[@blimbam]

hey i have your profile picture on a shirt

[@luxecheer501]

Can I mail u mine for service? Please!

[@gosutohanta]

Great vid, thanks! But what if the opposite end of the wire has to be repaired?

[@Mr.Engine993]

You could repair it with an extension wire but better buy a new motor, it will not be more expensive. If it was an L, XL or Buggy motor it would be worth repairing like this

[@BozskaCastica]

I have the same problem the end of cable is broken.

[@xuanvuongbk]

What type of lubricating oil do you use?

[@wolkaiserdrake9946]

is it possible to wire up a servo motor to work with power functions?

[@BuilderBasti]

Probably yes, but there is a Lego servo motor (power functions) as well. If the Lego one is too large for your build though, there's likely a way to connect a power functions plug to a cheap small servo, although it would require chopping either an extension cable or motor cable, soldering and knowledge on how to connect the wires properly

[@oldhorn420]

​@@BuilderBasti apparently you can't, since a servo motor needs a pwm control so you can't just easily connect wires to a servo

[@kunal3d]

What is the technical specs of the wires. Mine have become brittle and broken so need to replace it.

[@BuilderBasti]

You can just use basically any flexible enough wire, but it's likely cheaper to buy new Lego-compatible motors if you don't have some wire laying around

[@camion_forever]

I broke the clips😢

[@Einheit101]

Do you know how strong that polyfuse is?

[@BuilderBasti]

It probably says it on the fuse itself

[@Einheit101]

@@BuilderBasti nope. But i solved my issue by just removing that thing, its not needed if you take care that the motor doesnt get blocked.

[@dr.dungbeetle2516]

is there anywhere I could get 3 spare Lego M motor gears? (inside pieces) lol... i lost them before watching the vidio... is there anywhere i could but theese? (i have a 3D printer if there are any models)

[@raphi01]

Well, there must be 3 gears remaining and you could just create a model by measuring everything and counting the teeth etc., but i don't think that you are gonna find a model on the internet. So maybe searching for the gears on the floor takes less long than creating a model of them ;)

[@Mr.Engine993]

If you find at least one of the gears you can make the motor work. But if you find one, you can 3D-scan it and print copies. Without at least ONE of the gears, you do not have many chances of repairing it. Better give 5-7$ for a brand new motor

[@suisus-xq1mh]

Why😂