A friend of mine called me and said that he was tightening the nut up on his smoke screw and that the smoke screw broke and the nut and the part of the screw that was still in the nut fell off.

I need to know if not having the nut on there can cause any damage or if it will be fine untill i can get him to bring the truck over when i go to put his injectors and fuel plate in.

I have personally never heard of a smoke screw breaking what so ever so any advice is good advice. Thanks for your help.