If the hiss is heard, the torch is turned up too high and may push your weld all over the material. The muffler on my customers Honda Forman 400 ATV rattled. Then you make certain that the tube you will weld with the pipe is welding proof unless it will just burn down. After flaming, use a thin rod for brazing … Use these tips to learn how to torch weld. Wear gloves and overalls made from flame-resistant material. Heck, exhaust pipes are just the kinda thing that got me started buying my own welding equipment. By using our site, you agree to our. We use cookies to make wikiHow great. Use the butane torch to heat the joint where the metals meet until it glows. First, I cut off the end A torch outfit is extremely versatile: this single piece of equipment creates its own portable heat source and can be used to cut, heat, weld… The baffles on the muffler on my friend Rick’s tractor were shot, so it was very noisy. As mentioned in Part 1 of this series, TIG should be employed when welding thin sections of exhaust tubing, especially when using specialized alloys such as stainless steel or Inconel. Once you've mastered the oxygen flow and tip size on a torch, you will be ready to practice handling the torch and apply the process to a variety of projects. ( i already had a torch kit lying around). MAPP welding torch MAPP gas cylinder Parts to be welded Filler rod. Last Updated: December 26, 2019 Make sure the vehicle is cooled off before this step or you can be badly burned as the muffler gets very hot. I figured instead of paying over 300 dollars for an exhaust assembly when all it needed was a muffler, I would just buy some gas bottles and gas weld a new muffler on. Torch outfits produce heat (energy) by burning acetylene gas. Source(s): weld muffler pipe: https://shortly.im/fOipO. Or, describe it as you have if you forget. https://www.hse.gov.uk/welding/welding-controls.htm, https://www.youtube.com/watch?v=OReUnBkmdYo, https://www.youtube.com/watch?v=NAA2wFZYGYo, Please consider supporting our work with a contribution to wikiHow. Every dollar contributed enables us to keep providing high-quality how-to help to people like you. By signing up you are agreeing to receive emails according to our privacy policy. If you are on a personal connection, like at home, you can run an anti-virus scan on your device to make sure it is not infected with malware. This will also prevent leaks from the exhaust system if it is done properly. Easiest way to weld old rusty exhaust tube is using Oxy Acetylene torch. Yah, I just can't remove the exhaust by myself though I know I saw the guy welding my muffler on a few years back while it was up on the lift, but I didn't pay an attention to how he had it set up. Copper, brass, bronze: Copper Phosphorous Brazing & Welding Rods Commonly, metal-cutting torches use a combination of oxygen and acetylene gases; the gas tanks must be turned on, their flows regulated and a spark or flame held up to the torch. Local Exhaust Ventilation. A third type of welding, called flux-cored arc welding (FCAW), uses a continuously fed electrode tube in place of the wire used for MIG welding. Flowmaster delta flow 50 series muffler 2.25 in/out welded to the stock pipes. 0 0. Completing the CAPTCHA proves you are a human and gives you temporary access to the web property. Welding an exhaust pipe is one of these things. Work in an open area and keep a fire extinguisher accessible at all times. Thanks to all authors for creating a page that has been read 54,069 times. Performance & security by Cloudflare, Please complete the security check to access. • Light the cutting torch, and adjust the flame. I have a propane torch, will this work? The Tools! Use a neutral to a 1x reducing flame. Position your metal pieces and clamp them into place if desired. We had to slowly back off the power because suddenly dropping the arc creates a depression, weakening the weld. A nice crisp point should be evident without you hearing a loud hissing sound. By adding oxygen gas, torch outfits can produce flame temperatures of 5,620 degrees. For welding, you use the same metal as the filler that you are welding. But with the arrival of COVID-19, the stakes are higher than ever. While welding processes enact the places you need to fill up with weld and do not leave any places incomplete or any gaps. As much as there are other solutions to fix the exhaust pipe, welding is the most viable long-lasting solution. Please consider making a contribution to wikiHow today. For example, mild steel rod to weld mild steel. Warning. The brazing rod should be melted by the heat of the metal pieces being joined, not by direct contact with the flame of the torch. Figured not much performance gain on the cat-back, so why not save the money and just get a muffler. (However, an aftermarket version would be less expensive). Clean up the metal with soap and water. Please enable Cookies and reload the page. The tube is metal on the outside, with a flux agent in the core. Source extraction, or local exhaust ventilation (LEV) is a mechanical device used to capture welding fumes at or near the arc and filters contaminants out of the air. Learn more... Learning the basics of torch welding is the first step in becoming proficient with many types of welding. I have had good luck repairing mufflers, even though you would think the high carbon from exhaust would make it difficult to weld without cracking. Your IP: 95.154.236.129 Please consider making a contribution to wikiHow today. However, mastering welding is something that can take time, not necessarily due to its difficulty, but because there are many subtleties involved with maneuvering the torch. Wear a welding helmet to protect the face and neck from burns. My dad gave me a torch about a year ago, but I've never used it. Mix into a paste (with something like isoypropyl alcohol), and apply (with a small brush) to the front, inside, and back side of parent metal joint, AND you might as well put some on your filler rod for good measure. Another way to prevent getting this page in the future is to use Privacy Pass. So, how to know if the exhaust pipe needs replacement or welding? Filler should be kept on the outer edge of the weld letting be 'drawn in'. This article has been viewed 54,069 times. It should weld nicely, with a very fluid puddle. Using your tools, remove all muffler clamp bolts holding the old muffler and muffler joints in place. There are many types of materials that can be welded, and each has its own unique properties. Progress the weld with a steady torch, letting the weld grow on its own, and draw the torch off slowly when finished. Welding Car Mufflers. There are various configurations of lenses the selection of which depends on the type of welding to be done. {"smallUrl":"https:\/\/www.wikihow.com\/images\/thumb\/e\/ec\/Torch-Weld-Step-1.jpg\/v4-460px-Torch-Weld-Step-1.jpg","bigUrl":"\/images\/thumb\/e\/ec\/Torch-Weld-Step-1.jpg\/aid1422030-v4-728px-Torch-Weld-Step-1.jpg","smallWidth":460,"smallHeight":345,"bigWidth":728,"bigHeight":546,"licensing":"