10 Secrets for Perfect O2 Bung Welds

[@TheFabricatorSeries]

💥 SAVE with code *TFS10* at Weld Metals Online 💥 weldmetalsonline.com/

[@shaunhills3902]

Hey Justin love your videos you are are the only reason I started to get into Tig welding you are a inspiration man. Just got a question - What is the difference between a normal tungsten compared to the Lazer tungsten you where using also used it on your alloy video?

[@TheFabricatorSeries]

@@shaunhills3902 I appreciate it! There is no such thing as "normal" tungsten. There is only the tungsten that works best for what you do. In my experience, LaYZr is the most indestructible tungsten that literally welds every single metal I throw under it. It just lasts for ever and its my favorite until something proves itself superior.

[@CallofDoobie585]

Justin I can't thank you enough brother. I haven't been on the scene in 16yrs. Started again 2 days ago and I'm already shinin. Without you, Jody, and bob idk wtf I'd do for morale, motivation. Thank you for everything!

[@TheFabricatorSeries]

@@CallofDoobie585 Keep at it 👊😎

[@frdstang931]

Hi Justin, great video and thanks for the info. I like those aluminum blocks you use for positioning with the notches cut in them. Do you make them and if not where could I get some?

[@johnborg353]

I have one other tip I also use tip 4 and use a piece of rod ( sometimes a bolt sticks) as a heat sink but also I do not drill a hole until after welding the bung on. Once the bung has been welded in place, I centre punch, use a slight undersized drill to Pierce the pipe, then use a correct taper tap to tap out the hole. You get the benefit of not blowing out the hole and once the thread has been cut into the pipe a more uniform job with extra threads...try it out!

[@ryanbrown918]

Like this idea

[@mindbendernine]

Regardless of how skilled this gentleman is at welding, he's got a solid announcer's voice and should be doing voiceovers for a living. He's so good, he could be announcing major sporting events Think about it. Also, great video!

[@Sara-tk4nm]

He does have a very soothing voice.

[@p0ser901]

He’s also VERY well spoken.

[@chrishayes8197]

if Justin ever wants to adopt me as a noob apprentice, that would be great

[@MarkSchuster-ym3iy]

I’m 65 years old. Been MiG welding as well as mma for years. Just learning TIG. I love it but it’s tricky since my home made welding rig is scratch start. I enjoy it though

[@kirstenspencer3630]

I can tell you as a retired sanitary process welder these tips are a good place to success in stainless welding. I cannot emphasize enough back purging the weld zone. Thanks for the quality video of the weld puddle.

[@racetruckron]

I love using the Vibrant O2 bungs with the saddle that sits on the tube. It also spaces the weld farther away from the threads to minimize thermal distortion.

[@Excentrix54]

These are the ones I use. Love em and make it very easy to not screw up.

[@88Frank]

I dont even have a tig welder but this was enjoyable 😂

[@anikidwolfy]

get 1 and practice.

[@88Frank]

@@anikidwolfy Have a mig, for the use it gets that'll do for now

[@ebogar42]

Tig is easy once you learn it.

[@MsALDARI]

pises nut ela asazh

[@dieseldabz7104]

@@ebogar42 very easy. Same with miging aluminum.

[@de0509]

7:48 seeing a filled inside is kinda so satisfying. Ive never even touched a TIG but Id always appreciate good fabrication

[@kasparroosalu]

Filled what inside?

[@KnightDriveTV]

Awesome to see some fab. I closed my performance shop some years back and sold off my tooling. Past couple years I really started missing TIG welding more than anything. Luckily, starting and growing my youtube channel has allowed me to gain some sponsors and get back into it. I've watched your channel for a while, to keep me in it...lol. Going to start a fab series on my side as well...more people need to TIG...it's fulfilling when you get good. One thing I never mastered though, was cup walking and it's something I'm going to figure out...always found it mega tough though.

[@daniellucas7715]

Totally on point!! I weld stainless almost every day and have been using these techniques for at least 10 years. Cheers!!😎😎

[@RICKAFOUR]

Hi Daniel, can you talk more on the post flow? And why you need to keep the cup there until it cools down?

[@erickieffer8440]

Dude, your avatar is awesome! I’ve been welding stainless for a least ten days straight, I’m trying to get pulsing figured out.

[@dougtroutman5695]

Nice work I'm a retired pipefitter welder and have done a lot of that type of welding. Looks really nice.

[@carlosmartinez-kl1ho]

This really came into my feeds at the perfect time will be doing this Saturday

[@wernerxldata]

Nice piece of craftsmanship ! Never welded bungs but I did other stuff with thread in it, always put bolts in it, you risk deforming the thread by heat. Have seen enough examples of people trying to weld a nut onto something and afterwards it didn't work anymore, quite funny 🤣 That was with mig welding by the way.

[@jcnpresser]

Man I could of used this information at work today, had to reweld an egt bung back in that broke off. I cooked it 😫! I’ve only been tig welding for 4 days, just got a machine last week. That’s for the tip!

[@NodnarbRS]

I’m in a living hell right now in life and I can barely keep it together. These videos help me focus on something useful and interesting and technical which disengages me from everything else for a while. Also the quality of your videos and your tips is absolutely top notch and much appreciated!

[@Bigskyguy56]

Justin, Thanks for your 11 TIPS. As always, Great Content, presented in an understandable & direct, concise manner. Thanks again. Rick

[@cmcken1]

As always, fantastic instructional video complete with all the pitfalls associated with the process.

[@dusty8365]

Proper weld for thick to thin always keep your heat on the thick wash the weld quick to the thin the way you think is same as me everytime I think you may say somethin diff you exactly what I would this channel is awesome very informational and to much info just enough thank you

[@johnnywoods9473]

Great video thanks. Wish I could weld like you! I always clean the bung in a cup of solvent with a small brush to make sure I get any oil out of the threads.

[@jason-things_to_do]

Great tips. Welding on a tight diameter is always a bit more challenging and stainless with the purge adds to the effort. The last header I made header 15 years ago used /16 rod". I now have turbo header and exhaust to make in 304. On your advice, I picked up a 10 lb of .045" from my LWS which I should be able to pass on to my boys.

[@Auburndad50]

Make sure to count the number of dabs on your bung. Reposition and start over. Ron Jeremy welding class.

[@jryer1]

Very nice. The bolt is clever, the back gassing a must!

[@69camaoZ28sc]

I always use a brass bolt in the bung and I have a piece of 1/6 inch thick by 2 in square piece of copper that I form to fit the tubing OD with body panel hammer. When I place the copper inside of the tube as a backer and clamp the bolt and backer with vice grips it conforms perfectly to the ID. Results = Zero blowouts. I've even used 1-1/2" small diameter pipe and some old chisels to wedge the copper into place. I do the same when making custom hinges I use a brass pin before welding and on accessible body panels I use 1/16 inch by one inch wide by 12 in long strips behind the metal to keep heat warping down.

[@rjjablo]

I had the o2 bung fall out on my POS Geo Metro. Rather than have some one beautully weld it back in like you, I just safety wired it with a figure 8 pattern. Nice video

[@7weld7]

Great tips, these things can seem so simple to us but can make all the difference in the world to those who are just getting started. 👍👍

[@kenbellchambers4577]

You are a master welder sir. Amazing weld, and very interesting and sensible tips. Thank you.

[@wilwilson8146]

"Don't forget to clean your bung" Best piece of advice on the internet..

[@collinclark6086]

Very informative video. I do lots of gland entries on cylindrical terminal boxes, and these tips help a great deal. I generally fit them up using flat bar clamped to the inside of the tube, then tack up and take the cup for a walk if the gland is big enough.

[@ronburg6914]

for number 7 ive heard people say you should also keep your filler under the gas ive never done tig so i cant say but great tips so far and hopefully i can implement them next semister when i lean tig

[@angrypirat2]

thats art man! i would put that piece on my bedroom wall! your torch and your torchcable looks so light! im a WIG welder for over 18years and welding is a art for me and your videos inspire me

[@dieseldabz7104]

I've been welding for about 27yrs man and I've never done WIG welding. What is it?😂

[@angrypirat2]

@@dieseldabz7104 sorry WIG is German term for TIC. Wolfram Inert Gas

[@aktrapper6126]

Nice work, beautiful looking welds and great instruction. Thanks for making these.

[@randallmason9687]

Looks great Man! We cope out a coupling, put four tacks, then quarter weld from tack to tack. #5,or #6 cup. Walk it around. I would like to try the Pyrex cups!

[@cesargarduno7999]

Thanks never imagine all this would be so involving.

[@pawn3d167]

wish i knew these tricks when i first started at my company 2 years ago, fresh out of college lol. pretty much learned everything you showed here as i went along tho they dont allow us to purge unfortunately. just means i got better at heat management to not burn the stainless haha. luckily they let me switch the whole tig dept over from the crappy pink cups to the 12 furick setup so quality and ease of welding has shot up since.

[@jamier6742]

You’re kidding about not purging right? Are you not working with stainless steel?? How do you get away with tig welding a one sided stainless steel joint that cannot be accessed from the back side, in order to back gouge/grind, since there is no purging taking place??? Sugaring is not an issue with your QC department and most of all your customer? One-sided, stainless steel complete joint penetration, with no access to the backside is ideal for purging when tig welding.... Assuming you are using the GTAW process that is... “Sugaring” at the “Process” side of a stainless steel fabrication is a MAJOR NO NO at my facility..... I’m all for back grinding the root whenever accessible.... This is common at our facility, but there’s always those situations where you cannot access both sides of the joint, hence the purge operation.... You should take the initiative and start purging when applicable..... Just my two cents....

[@pawn3d167]

@@jamier6742 while yes i agree that purging everything would be ideal and it bothers me that we don't, the customers we have typically dont worry about it. We make various oem replacement parts for pretty much every semi truck mfr. (Mostly exhausts) and none of the customers request that we purge the components. They know we dont and pay us accordingly to bring the unit price down. We only purge if the customer requests that we do so.

[@metalheartmachine]

Always fun when the bolt tightens up in the bung, and refuses to come out.

[@dieseldabz7104]

And removes ALL the threads when removing from the bung..GOOD times...

[@roymakel]

And yet again, another masterpiece!

[@MoreLaterDude]

If you don't weld but love watching welding videos!

[@ralphwaters8905]

Have you ever tried *SolarFlux* Type B for backing up your stainless work? I used it on a SS exhaust and it saved me quite a lot of gas because I didn't have to purge the mufflers. I bought a 4-oz bag for $20 on eBay. You mix the amount you need with methanol and paint it on the back side and edges of the joint. It dries quickly and you can weld right away. It will melt and move out of the way if you weld over it, and the residue is sorta like glass. Not good for food tubing but AOK for exhaust pipes.

[@TheFabricatorSeries]

I have two vids about it

[@AntiMaxer]

one of the better videos on bung holes

[@Tanoforfucksake]

A little trick I’ve used is, drill out the bolt, add a sleeve & drill out the hole after it’s welded. So you have a perfectly centered hole every time. I also use aluminum plugs inside to keep the tube round. We’re usually using 625 .030 though.

[@josephperry4344]

Masterfully taught and illustrated, thank you for your videos.

[@FrustratedBaboon]

Nice clean welds. More gas means faster cooling and also salmon colors. Speaking from experimentation.

[@fraylem343]

Once used a stainless steel bolt in such a scenario, the thing you can not get out again. :D

[@St0RM33]

loool

[@aaronyoung8028]

Yip... bin there, done that 🤦‍♂️

[@Josefppaz]

How did you fix that Fraylem I did the same thing

[@fraylem343]

I welded on a handle to throw away and started over.

[@davemcdaniel4856]

@@Josefppaz you welded the bolt to the bung. Cut it off and redo it...

[@alext8828]

Great voice. Could make a living with it.

[@isaks3243]

i weld at 90 amps when welding stuff like that and aim the arc slightly towards the thicker piece with the threads in this case. i personally weld nuts to square tubing fairly often in my work and it is a similar thing when welding this thing. but what i mostly weld is thin walled stainless steel tubing with tig.

[@TheMrREVOlutionary]

Another thing to note as well is the quality of material that the bung is made of. I use the innovate brand bungs which are like the second style you showed. Those weld like absolute garbage as I believe they are made from 412L. It's almost as if you're welding to Swiss cheese.

[@TheFabricatorSeries]

I've welded those before. Its undercut city and theres nothing you can do about it except hope to hell it holds haha

[@TheMrREVOlutionary]

@@TheFabricatorSeries exactly, they suck so bad but my employer will only buy those because they are cheap. I do a lot of 304L stainless round tubing, 0.65 wall, beautiful parts and welds. Then we have to put those nasty bungs in there.... Pisses me off so bad lol 😁

[@gordowg1wg145]

@@TheMrREVOlutionary If (s)he is like most employers, they will prefer to save a couple of dollars on the part and end up costing themselves several times that on time and other costs getting the part to work, than spend a little more initially and save everywhere else and actually net more on the job - bonus for them is the time that would have been wasted can then be used elsewhere to make them money.

[@TheMrREVOlutionary]

@@gordowg1wg145 yep that's right. Sad part is it's a family business I've been part of for 10 years now. We end up shooting ourselves in the foot doing stuff like that. Oh well, what can ya do?

[@r6scrubs126]

ohh I wondered why when I welded some O2 sensor bungs on they had mad undercut no matter what I did! This makes me feel better

[@9traktor]

Fine! Looking forward to weld my Ariel NH framework...

[@simclardy1]

nice video! another tip. try using isopropyl alcohol instead of acetone

[@gordowg1wg145]

Good to see you're still around - when YTers who post regularly take a break, there's always concern about their health, especially in these times.

[@TheClintmeister]

You had me at laughing at "clean your bung hole". Good video overall.

[@slidey1000]

Do you have any tp?

[@thinkingimpaired5663]

Bungholio.... the subliminal humor is hilarious.

[@adrenalinemotorsportsracing]

ha ah haha ha you said "bung hole" ha haha haha

[@R00567]

Do you have a video for beginners who want to purchase a welding setup and which setup is the most advantageous? Love your videos!

[@dandeflavis7004]

I like the Vibrant brand radius bungs

[@MateWiggy]

Love your channel mate! You got a great passion for fabrication !!!

[@finallyitsed2191]

Really nice video and great looking weld. Trying to do that underneath a car is tough though and hard to get all the way around. Sometimes you don't have the option of laying it on your work table.

[@spar8334]

I'm not that good at welding only used mig before but probably could make the best looking welds than anyone else in the shop. New guy was bragging about his welding skills i needed an o2 bung welded in so i got him to do it holesaw and drop it in and weld. He didn't even get it sealed all the way had to grind a lot and weld it back. Picked on him for the rest time i worked there lol

[@pontiacbob99]

Nice video. Beautiful weld. Thanks for the tips. I will use them to pick a good welder for my project.

[@judelarkin2883]

Can’t argue the results, great looking weld!

[@CatCow97]

Could have used this vid last year. Took me three tries! Cutting the botched attempt(messed up my measurements and had the angle off and it was pointed straight at the engine and couldn't install the sensor) out made almost as much a mess as anything else. It also appears that some of them are made of really junky metal that just wasn't cooperating. The final result was ugly(not to mention the patched hole from the bad location), but it worked.

[@zeebull]

Wondered when another video was going to drop. Nicely done

[@Thomas-ts2gl]

Great video... forgot to mention take the bolt out right away before it cools or it may be stuck in there for ever.. "count the dabs" good tip thanks..

[@matthewjones7689]

I was literally searching for this last night. U herd my prayers lol.

[@danl.4743]

Hurd.

[@pasoco]

in german we call them "Muffe mit Innengewinde" (socket with female thread)

[@geneva760]

Thank you for some great tips. Have a nice day all. CHEERS from AUSTRALIA.

[@KROKO123OOO]

Thank you for this video. Due to welding heat don't it bend after it?

[@anetworkservice]

This is so timely... I'm trying to weld a drain plug bung into my Transmission pan and it is just like an O2 bung. The problems abound immediately. I'm not sure if there is a coating on the pan because I'm getting a brown haze. Plus I ended up with a small hole quickly when I was just getting started. This little job is more trying than most of my welding projects. I hate to mention this is the second attempt because the first one is dripping under my car. I ordered another pan and another bung to try again in a different position with hopefully better results.

[@gurjindersingh199]

Any metal that is in contact with oil will have problems welding if you don't thoroughly clean the metal and then take a torch heat it up to sweat out the absorbed oil in the pores of the metal

[@vintagespeed]

one thing you didn't mention... if you're using a stainless bung, dont use a mild steel (dissimilar metals) bung plug when welding.....they can fuse together and scrap your whole piece. ....ask me how i know.... good vid!

[@TheFabricatorSeries]

I used a steel bolt in a stainless bung and it was just fine. I've never had a bung fuse to a bolt during or after welding.

[@garyhoward4064]

I am about to Tig weld a bung on my bike exhaust and was wondering if it’s really necessary to add filler material. Come to think about, it does not need to be a very strong weld, all it needs is to be air tight. Thanks for your input.

[@JuanRodriguez-ch6hf]

BIG HYPE for you for using mm also. Thanks

[@todd5082]

Nice job! Thanks for sharing your skills. 👍

[@איציקהללי-ל1ר]

It's so much fun watching the videos I learned so much from you Keep it up

[@jaicabryizky6987]

"I am Cornholio! I need T.P. forrrrr my Bunghole!" -

[@garethmcgregor1621]

Great to see you back mate, awesome video as usual, can't wait to see your Ute build

[@rohanpuri1989]

Great info.. can you do a video on making a jig for bent tubes, forming an OEM style exhaust port spigot for harleys, best wire grade and thickness to make the best welds on 304 tubing, welding a stepped tube i.e. 1.75" to 1.875" basically everything that's required to make a set of 2-1 exhaust system for harley

[@SubBassFrequency]

Excellent advice, thanks! Any chance you can do one of these videos for Aluminum bungs too?

[@f-16tigwelder54]

Yes, always purge. Who makes those purge plugs your using in the ends? Side note the bolt works great but I wouldn't screw in in more than 3 or 4 threads, in can shrink and you will ruin the threads when removed.Thanks

[@thebadseal4895]

Nice beads. I'm getting there. Thanks for all the tips.

[@snfn7847]

Top tier content, I'm trying this for the first time this weekend. Thanks

[@erickieffer8440]

Thank you for posting this.

[@jdmcrazy87]

I sware everytime i have a project im doing you come out with a video 🙏

[@Bisonribs]

How does he keep a straight face? Saying bung and hole repetitively? Incredible self discipline.

[@liftedcj7on44s]

For smaller bungs lets say a 1/8 npt bung, I use the drill bit that I drilled out the hole with to position the bung.

[@PeteSkeet98]

Some good tips! I usually have to notch mine myself for air lines.

[@michaelcostello6991]

You should have your kits available in Australia.

[@brighambaker3381]

Gorgeous welds; thank you for the tips!

[@michaelcummings2032]

Good advice and excellent technique. Kudos.

[@GeneralAlex4]

Best Bung hole video I have seen. Thanks.

[@randyramer7988]

Enjoy your videos and can tell you have great free - hand skills but kinda lost me on counting dabs. But definitely is working wth your style and end product looked great.

[@weldorman8495]

I've done literally thousands of stainless fittings to stainless tube, the requirements being for pressurized hydrogen and helium gas. If you want something to center a fitting to the hole in the stainless tube, machine a plug to fit the bung for alignment. NEVER, EVER use a threaded bolt as a centering device. It only takes one to freeze up into the fitting to destroy both the bung and the pipe assembly it's going on to. Also, I usually use the bung as the gas vent to allow the inert gas to exit the assembly. This guarantees inert gas right at the inside of the weld where it needs to be.

[@theMekanik]

Does anyone else think “Bung” is one of the funniest words in existence 🤔😅

[@missmymountain]

I did until 1:12. Now I have a new one at the top of the list.

[@donright4310]

Nope it's moist

[@theMekanik]

Don Right Moist Bung 🤣

[@PeterFeltersnatch852]

Your a "bung hole" ☝️☝️☝️ Just for such a corny COMMENT!!

[@joe_moms_lover]

What about bundt

[@victormildew1717]

Big problem here in the UK, is free machining stainless used for the bosses.Undercut is impossible to avoid.316, never a problem.

[@dgretlein]

Beautiful work, man. Thanks for sharing.

[@scotthoover6689]

Makes me miss welding. Nice video, and work

[@dougsweldingfabrication953]

Thanks for the video... I appreciate the suggestions.

[@devinhales]

Tip: After purging, use TP for the bung hole.

[@toastrecon]

Dumb question: if the bolt seals the bung, and the plugs seal the ends, and gas is flowing into the tube, does that mean that it's leaking or purging out of the seam between the bung and the pipe? My concern would be that as the gap was sealed off, the pressure from the purging gas would blow out the molten metal at the very end. Maybe the surface tension is enough to keep it all locked in.

[@mpf_agundipsht3619]

always found these really easy, specially when welding drain plugs into air handler header tubes, a round file will easily shape the plug to the right form to fit the tube and takes relatively little time to achieve . Most will be purged so the gaps don't really change anything as long as you're good at dipping the keyhole. i never use a bolt in threads when im welding plugs, sometimes they don't come out and if you use a thread paste it travels into your weld

[@NOBOX7]

That tungsten looks like a broom stick , wow , ive bin using that little bugger thinking it was best for thin metal . tip # 11 maybe ? broomstick ?

[@royderouin7510]

When your at the auto parts gettin bungs, pick up some carbon fiber con rods with the glue on caps be sure to use areo space adhesive

[@dieseldabz7104]

Wtf..

[@davidwoods8982]

Great presentation! Thank you

[@hush22performance1]

Thank you for this video!

[@oBseSsIoNPC]

What I want to know is, why do they even bother making TiG welders without a pedal? I mean sure, you can scratch start and all, but the quality, reliability and looks of a good weld really depend on a smooth start and finish as well as adjustment of heat during the welding process. I do know the answer....money. Still, TiG without a variable trigger is kinda useless. Great video!