Engine problem please help
I took my engine apart for another reason, but now that im trying to put it back togeter, you know that gear thats at the end of the shaft, the gear that connects to the spur gear, well it wont tighten, and its not like my other cars, my other cars use a screw to tighten it , this one used a little small c clip to hold it on, but it wont tighted. If it does not tighten, then the shaft will just make it spin, and it wont be enough power to spin the spur gear correct ? How can i fix this?
warhead evo