alright guys heres whats going on. Im working on the floor pans in my F100 and Ive got two pieces left to weld in. Im using a lincoln 135 with .030 wire and I just hooked up gas too it. The passanger side went so so, but this is my first time doing anything thin like this. Im using some 16 guage steel that I got from work out of the scrap bin, ive grinded the steel clean, and then cleaned up the truck side of the metal pretty good with the grinder. Now when im welding im getting barely any penatration on the truck side. It doesnt matter if I start on the trucks metal and then drag to the new metal or vise versa. It just pools up on the truck metal and then will break off when I give it a few wacks with the hammer. Ive been just tacking it in, so I figured Ill run a bead and it still does it. The funny thing is that it is burning in good into the new metal. What gives? I just got so frustrated with the last piece I attempted that I cranked the welder to J or whatever the highest heat setting was and it still did the same damn thing. Any ideas?