I bought the model fisguring it would be a neat project.  After the bearings were just about stripped due to the other bearings coming undone I decided to glue them in.  Next I went to attach the cam gear to the crank gear and the pieces don't line up, they are off by about 5 MM, not much but enough so that they don't even touch.  The cam gear is too far back, or the crank gear is too far forward.  Either way I haven't progressed very far in the 3 hours i've worked on it.  Any help is much appreciated.