Re: Carb. Rebuild Question
It is likely not necessary to seal the core plug assuming you do a good job in replacing it. The plug is pressure fit. To replace it, you put the convex side up and get a wooden dowel or socket from your socket set that is smaller than the plug. Then place the dowel or socket on the plug and tap it with a hammer. If you want, you can then seal it. I have used clear nail polish.