i have os .12 cv-r and i was wondering if that engine is supposed to have a clutch nut on it because mine don't it just has the hex screw going through the clutch bell holding it all together and the car won't pull.

Can you post a pic of how you have your flywheel and clutch nut installed on your engine? I want to see if that is the cause why your car will not go.

Also, after you take a pic of your clutchnut and flywheel installed, install your clutchshoes and springs and take a pic of that too. I want to see just how your clutch assembly is put together to see if that could be a cause.