I have the Haynes welding manual and it shows a stud kit that works with your mig gun to repair broken off exhaust studs, There is a fitting that screws inplace of the contact tip and a hollow threaded stud fits in the fitting. the idea is you just place the weld on stud against the stub of the broken one and weld them together through the hollow center. It shows them installing one and says it's a "Stud Kit" made for exhaust repair shops but doesn't give any company name or supplier. I need one of these kits for a special repair. All the welding suppliers I've contacted never heard of this kit! One even asked me to tell them if I find a supplier they would stock them for their customers! Same for the local repair shops I've asked at.
Just asking here,but why not just weld the inside of a nut to the broken stud and then you will have something to work with. HRP
Because I'm trying to replace broken bolts with studs and I don't want to have to completely dis***emble what I'm doing to try and drill out and retap the bolts broken off well below the surface of the part!these studs would be the fastest cheapest way to do the repair and will work excellent for what I want if I can find them.
I'm not following this. If the new weld on stud was a metal stud and you ground it to the broken stud the wire would just weld up the hole in the new stud once it touched it. Does that make since or am I totally not understanding how this is suppose to work?
Your understanding the concept fine there is a special tip to use with the hollow studs. The idea is you can reach into a pretty deep hole with the hollow stud. You pull the stud back a slight amount from bottoming out on the broken bolt then weld onto the broken end and fill into the base of the hollow stud. Now if I had this kit for the welder fittings I'm sure a drilled piece of bar stock or heavy tubing could also get used to reach into a broken off bolt hole to weld on an extension that you could then use the nut trick on or even broken stud pullers or vise grips. With this kit IF it works as they claim once the stud is welded in place you just add a nut and the repair is finished! As long as you can get the mig gun in place you don't have to pull anything apart to affect the repair.
Sounds like something that a company tried to market and it didn't work. As asked before what is the publication date on the Haynes manual?
If the broken bolts and threads are in cast iron, you can weld it no matter how deep its broken off . Try it on a s**** casting to see how it works. I've never heard of what you are speaking of in the manual
I don't have the date I no Longer have the manual or I'd have found a way to post the pics of the kit in use. Ok guys understand this I'm a weldor with over 35 years in the trade I was certified YES I know how to use welding to pull broken bolts studs etc.I have literally pulled hundreds of bolts this way depending on the day on one job 20 to 30 broken bolts was normal! Steel bolts seized in old weathered Aluminum castings broken bolts on dis ***embly was just part of the day.
Send Tommy a PM,,his had a muffler shop for many years,,he might be able to shed some light on the mysterious part your looking for. HRP
You can't have it both ways. If you expect to find anything out find the manual. In all my years of welding (40 years and counting now) I have never seen anything like what you describe. I suspect it is something old and obscure, possibly even something that met with limited success and disappeared into history quickly.
OK let me rephrase then yes I own the book No at this time I can't find the damn thing it's packed away in storage along with most of my other books and I have several hundred of them packed away. I have about the same time welding as you got my first cert in 72 but been welding since late 60s.This is the book They still sell it my copy was bought about 10 years ago. ISBN: 1 56392 110 3o. It was first published in 1995 The kit I'm talking about is shown near the back of the book. I figured if anyone can find the source of an obscure item it's the guys on here. If anyone has this book handy I think the pic I want is about 20 pages from the back and on the right hand side page
Check out HTP that's what the manual says... They make a mig welder called a 160 stud for muffler shops...This link shows the stud nozzles. http://www.htpweld.com/products/mig_gun_parts/13AK.html Kyle
Kyle thank you ! My book is from the earliest printing they might well have covered this more in later editions.I did searches based on the manual but couldn't find much other than places selling them or selling Ebook downloads. Right now I'm having a problem with the program used to read PDFs so couldn't do much there. I have Acrobat reader and for some reason it messed up during an update and now won't load past 50% and I don't know how to fix it.
Well it's current and from new posts and private messages it is apparently a version of "Drawn arc stud welding " something in all my years of welding I have not seen. The only stud welders I had seen before this was the "Pin welders" used in body work for pulling dents. Thank you those that found me some info and those who PMed me with answers. In fact this could be compared with the nozzles they sell to use with a mig for these pins. The studs that the kit uses are threaded so that once welded you just run a nut down them to tighten the fittings. when I get more info I will post it up but Kyles link in post 14 is what I been looking for I would think I can get the attachment for my mig from them. Check his link you just might find a good use for this tool yourself!
Thank you, this is exactly what I was looking for! My early edition of this book only had the one view of the stud being welded and made no mention of manufacturer, only that it was a tool designed for muffler shops My pdf reader isn't working right and I had to use another computer. The HAMB comes through again.
Pretty interesting stuff. Structural fabricators use a large stud/pin/anchor welder ,usually they range in diameters up to 3/4" . They use a ceramic cup that fits over the contact area to keep contaminates out of the weld zone.
I had a muffler shop for over 20 years. I got the trade publications to try and stay up on all the new ideas and tools. I've replaced an *** load of Chevrolet 3/8' studs Using the welded nut method if it was broken off flush. I've never seen the tool you are referring to. I would not want one. For me the only way to repair one is to replace the whole stud. When I first started in my garage, I got pretty good at heating and removing the rusted nuts without snapping the stud. Some of the remaining studs were about 1/4" and snapped off when I installed new nuts. It did not take too long before I realized that the only true fix is replacement. Ive never seen what you are talking about but my skeptical *** thinks its snake oil. JMO
Eastwood has a kit you can buy to add onto any standard mig welder. http://www.eastwood.com/mig-stud-welding-kit.html is this what you thinking of?
The Eastwood kit is for welding studs to sheet metal for a dent puller to hook to not the type I was looking for.
Check the link provided by 48 Indian above . If welded to a solid base why would you think a new stud installed in this fashion to be "Snake oil"? like you I spent lots of time repairing broken off header pipe studs in GM cars when I worked in auto repair.Right now with my years as both a mechanic and welder and for this particular job I want to do this stud fix is looking like a damn good idea!you'll note in one of my earlier posts I said I think this could be used to also pull broken bolts and studs first I need to get the "kit" and give it a try then I can decide for myself if it's "Snake oil"
yes this is the drawn arc stud welding I spoke of in an earlier post. While working in a shop doing structural segments for building construction I had seen studs on some segments but never saw how they were installed as that was done in another area of the complex.
The Jalopy Journal
