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| | | | Joined: Oct 2008 Posts: 24 'Bolter | | 'Bolter Joined: Oct 2008 Posts: 24 | so I am welding in some patch panels, after grinding down weld There are little pin holes do I need to worry about those, I tried welding in some but sometimes a make the hole bigger
thx
| | | | | Joined: Dec 2006 Posts: 443 Shop Shark | | Shop Shark Joined: Dec 2006 Posts: 443 | Personally, I would weld them in. Try turning the heat down a little on the welder.
1957 Chevrolet 1/2-ton Stepside LB in the Gallery My Photobucket shots The person who has nothing for which he is willing to fight, nothing which is more important than his own personal safety, is a miserable creature and has no chance of being free unless made and kept so by the exertions of better men than himself." - John Stuart Mill (1806 - 1873) | | | | | Joined: Aug 2005 Posts: 6,377 Ex Hall Monitor | | Ex Hall Monitor Joined: Aug 2005 Posts: 6,377 | If the pin holes go all the way through and the back is exposed to the elements they should be filled. My concern with welding them is I don't know how many you have. Putting too much heat in a panel can create warping issues. I'm not familiar with all of the modern materials available but there may be some sort of an epoxy product that could seal the holes without re-welding. Again, if the holes are exposed to the elements on the inside (wheel well, fender, etc.) make sure both sides are filled to keep the rust monsters from inhabiting them.
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| | | | | Joined: Apr 2004 Posts: 888 'Bolter | | 'Bolter Joined: Apr 2004 Posts: 888 | You could also back up your welding with a chunk of copper to absorb the heat. Flatten a piece of copper pipe and clamp it behind your weld. I have a 3" square piece of 1/4" I use. And be sure to use gloves after you unclamp and it falls to the floor. Don't ask me how I know! Have fun and good luck
Dan | | | | | Joined: Oct 2008 Posts: 24 'Bolter | | 'Bolter Joined: Oct 2008 Posts: 24 | Thanks for the help guys, the patch panel is on the cab, so pin holes on the cab no big deal but on panels where moisture can get to both sides need to be filled
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