1/18 Ruckus 4wd how do I replace the motor?

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My son managed to kill the motor on his Ruckus and I’ve ordered a replacement part from the people we bought it from but I have no idea how to change them out. Is there any trick to it or just whip the old one out and chuck the new one in?
Any help much appreciated.
Thanks 🙏
 

Heyitsme

Well-Known Member
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No tricks the plastic pinion on the motor will slide (pull) off. Press the new pinion on the motor shaft the only part you really need to make sure to get right is the spur/pinion gear mesh. If you don't know how how look on youtube for using the paper method of setting gear mesh.

Just FYI the stock motor shaft is a round shaft almost all other motor shafts have a flat spot on the shaft for a pinion to be used that has a set screw to keep the pinion on the shaft. The stock plastic pinions are pressed on as mentioned meant to be used with a motor that has no flat spot on the shaft.
 
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