Nov 6, 2008 · I'm on the cusp of plug welding my gas tank and body mount braces to my newly installed trunk pans. When I plug welded the trunk pans to the inner wheelhouses, I used a 3/8 in. spot weld …

Oct 19, 2015 · Size of plug weld holes? Jump to Latest 7.7K views 15 replies 10 participants last post by TechNova Oct 24, 2015 Greg P Discussion starter

Jun 10, 2007 · Plug weld certifection from ICAR says you MUST feel a ripple on the backside, a 5/16 plug weld MUST tear out a 3/16 hole when destruct tested. As Bob mentioned a puddle on the …

Jun 8, 2012 · I've been looking at air punch/flange tools online and it seems that most of them punch a 3/16 hole. Is that too small for plug welds? After reading about plug welding on here, the consensus …

Oct 5, 2009 · When you heat things up you will start to see oil seeping out of the plug welds, if they’re leaking (3 of mine were). Those are entirely different beasts to deal with since there’s oil below. I’m …

Working on an 81 Z28 and first time doing floor pan work and I have very little welding experience. I'm using a gas MIG welder. I have discovered that zinc "weld through" primer is a bit of a misnomer and …

Dec 28, 2005 · A butt weld will give you the best looking repair job. I am tackling taking out my olds pans and new ones going in this week. I plan to butt weld 'em. If you want to lap weld them in, just seam …

Feb 8, 2005 · If any thing will mess up a weld is the primer left behind. As far a the area on the rocker I did the same thing. I was able to plug weld, by gaining access from inside the rear quarter window. I …

Jan 8, 2007 · And the zinc in the weld-thru primer combines with the weld, making the weld weaker. Now, if you drilled out a panel and you had to grind it through the zinc, for whatever reason, you may …

Oct 21, 2004 · Hold the arc at the correct length. Plug Welding Follow these general recommendations while plug welding. Carry out a test weld on a sample piece of the material. The power needs to be …