Hey so my engine gear just doesnt work and i dont know why can anyone help me ;C 

and tell me how to fix it :D https://www.dropbox.com/s/r7y177axpu9y03...1.jpg?dl=0

What specifically is wrong with your EG? Did it work before you disassembled it? Do you need help reassembling it...? If you elaborate, one of us will likely be able to help you or at least give you an answer as to its fixable status.

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Spoiler (Click to View)

This is what we all want, Brad.

yea i need to bring it back together but i just do know how always when i do it it wont turn on

Check out this video to see how all the parts fit together:

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Spoiler (Click to View)

This is what we all want, Brad.

You can put it back together but it's most likely worn out. If only somebody can make replacement parts for these.