Lanz Bulldog Cast Iron Piston 225mm Tig Welding

A customer asked me to fix this piston.

[@rorymunroe3771]

reminds me of a story about a ship's engine with a broken piston top.. they were far from port..but had a well equipped engine room with a lathe..the chief wondered how they would affect a repair as he made himself a coffee...looking at the oil stove gave him an idea he "chucked up " the piston in the lathe and cut the broken top out leaving as much as he could around the edges he the turned one of the cast iron stove lids down just enough that when the piston was heated and the lid cooled the two fell together in a perfect marriage he said it got them home and to his knowledge was never changed...

[@marcellemay7721]

He cut into that piston with a cutoff wheel like a bad ass. He surely has done this type of work before and probably many times. Nice job! That's a real welder.

[@rorschacht8478]

Yeah I was thinking the same. You're really free handing the cutout with an angle grinder outside in your yard? You're either a moron or a special breed of pro, turns out it was the latter. Awesome video.

[@Mistabushi]

I'm a simple man. I see "cast iron" and "welding " in one sentence I click like button.

[@derekhaydon4656]

You saw "cast iron" and "welding". I am still waiting for the cast iron. He welded that as if he wanted to get home early. He touched the molten pool with the tungsten just before he laid it on it's side. Then he TRIED to melt out the porosity. Did you see the sparks fly. He should have ground it out before finishing . I have no idea what filler rod he used, but it looked a bronze type. I think the piston may have been cast steel, which is why he could weld it the way he did. Should have used stainless steel filler wire, though.

[@THEMOWERMEDIC1]

@@derekhaydon4656 make a video and show us all how it’s done

[@jenniferwhitewolf3784]

Why the negativity in some posts.. This a very difficult repair that is carefully and expertly carried out. In most places this would be death of part failure, here, made to live another day.

[@alltheboost5363]

Jennifer WhiteWolf I feel like he did an amazing job except for the last 10%. I feel that it would have been very easy for him to fill all those pin holes in especially with Tig.

[@mrjodoe]

tig needs the cleanest surfaces - he should have cleaned the area. Sanding, blasting, ... and in the end with aceton. Also clean the bead after each torch turn off. you also have to preheat the thing seems kind of crappy tig work.

[@tremorwitt]

lol there is nothing clean about cast.... Someone needs to go back to school or try a weld repair like this for themselves otherwise your comment does not hold any weight.

[@r3drumg33k3]

Well it was a braze...

[@cwdtransport2247]

I have done this myself, I would have done a more thourough cleaning, Then placed it in my oven and pre heated it to 550f over four hours. Kept there over night. After welding replace in oven over night to reduce stress. I would have used my needle gun on the weld before using the hammer also to remove stresses. It works for me. ChiefD

[@bobgrassl1436]

I have been welding near 50 years..and must say that was a excellent fix...

[@seantbr2019]

Yep

[@phlodel]

I've done quite a bit of TIG welding of cast iron. I prefer nickel 99 TIG wire. A lot of good welders like brazing cast iron, though. They usually use a torch. A little pre heat and slow cooling seems to help.

[@christopherortega800]

Love the Chopin in the background makes it so ominous.

[@apismellifera1000]

That is a massive piston. Lanz Bulldog is another one of my favorite tractors along with International Harvester Cub Cadet and Cub Lo-Boy

[@tonic4497]

My grandfather is 79 yo and still craving about the bulldog he drove to the scrapyard in the late 50s

[@mr.randomvideos2928]

When he holds on to the guard on that grinder gives me chills. My Buddy almost cut his thumb off like that.

[@nicholasbrentley4212]

i dont mean to be off topic but does anyone know of a trick to get back into an instagram account? I somehow forgot the password. I would love any tricks you can give me.

[@jadencoleman3186]

@Nicholas Brentley Instablaster :)

[@nicholasbrentley4212]

@Jaden Coleman i really appreciate your reply. I got to the site through google and I'm in the hacking process now. I see it takes a while so I will get back to you later with my results.

[@nicholasbrentley4212]

@Jaden Coleman it did the trick and I now got access to my account again. I am so happy:D Thanks so much, you saved my ass :D

[@jadencoleman3186]

@Nicholas Brentley Glad I could help :)

[@michaeldvorak5556]

That was a pleasure to watch, thank you. This weld is going to get a beating with high compression and with the heating and cooling cycles I am really curious how well it holds up.

[@jimmybritt9537]

I would like to have seen the teardown and rebuild of the engine also . That was one heck of a repair 👍👍🇺🇸

[@the_retag]

Lanz bulldogs are old two stroke single cylinder hot bulb engine powered tractors, repair probably not that hard

[@fredjones7307]

Difficult weld at the best of times, but I wouldn't have tig welded that. I've always welded cast iron with standard arc welders using suitable rods. Before welding the item is groved as necessary and heated to a very high temperature, somewhat less than red. The weld is hammered in the same way to stress relieve, then cooled as slowly as possible. I've welded several vises that have broken at the neck very successfully with this method. It is necessary that the item be made of decent quality cast iron.

[@ianhames2465]

Interesting, what rods would you suggest, as I am about to embark on a repair to my cast iron wood burner?

[@VentoVr61987]

Wahnsinn, das weiß aber einer was er macht! Super Arbeit! Respekt! 👌🏼

[@northtexasskies3243]

Got this reccomended after watching the visio race video on big single cylinder engines

[@Dimythios]

Ahh Chopin's Funeral March.... and you are playing it all the way through... I LOVE IT.

[@markrich3271]

I thought my diesel engine was over built wow look at that old tractors piston. Great job.

[@melaniew77msn]

That is a hard weld to make! That piston top is so impregnated with extra carbon from being in high heat application where soot is produced from burning fossil fuel. That trash boiling out of that piston top will make it fight any filler metal flowing onto it.

[@vassilisgr1972]

instead of silicon bronze he should use aluminum bronze with ac to cook out the trash..

[@Clunk49]

I use silicon bronze on cast iron Pinto heads.

[@legendario13]

do they hold? With or without preheat?

[@Clunk49]

TIG weld steel straps on the cam towers for additional strength for bigger camshafts, no preheat. Weld 1 inch then go to furthest tower and weld 1 inch. The idea is to let things cool off before going back to 1st weld. It's closer to TIG brazing than actual welding as the head doesn't actually melt, just "sweats".

[@vicfirthify]

when the hammer sped up I did my woody wood pecker imitation in my living room,I never knew how much my wife hated cartoon characters till now

[@teamidris]

Peening is a nice trick :o) I need to get into that sort of weld relief. Although, mag-ally seems to be my thing at the moment. Let the ally rod blob down into the surface and then work it in before the magnesium gets angry and leaves the party.

[@chrisstamos5003]

well that's what i'm calling a piston!!

[@jakemandery]

Right do they even make pistons like that anymore

[@zacharyp10]

It's a 1 cylinder 10L motor

[@minitrailgott7558]

@@zacharyp10 Its a 2 stroke unit, you shouldnt forget

[@Jan_372]

Oh boy do I wanna see that Lanz it belongs to.

[@chasesettlemire312]

The fact that it’s cast and it came out that good astonished me

[@63mrl]

Peening the metal to minimize stress cracking.

[@speedy-cc]

Peening lol 😉

[@Mercmad]

@@speedy-cc that's the correct term .

[@JonDingle]

Great video, music which seemed to suit the task rather well. I am curious to know of any pre and post heat treatment used?

[@BruceBoschek]

Good for another 50 years. Excellent welding job. Thanks for sharing this.

[@rixogtr]

Its not. Apparently.

[@mrjodoe]

some blind people following the sheeple herd :D

[@HaraldSjellose]

@@rixogtr why

[@rixogtr]

Zemzem Dağdelen watch it again and think

[@HaraldSjellose]

@@rixogtr if you wont explain your words then dont say anything this is internet

[@dirkl.690]

Schöner Nasenkolben! ob das die Wärmespannungen später dauerhaft aushält und mitmacht ist bei Krümmern auch oft ein Problem schön geschweißt und reißt dann gern wieder ein

[@baazigaj9125]

looks like aluminum bronze filler rod with some awesome tig techniques

[@hansel498]

Hi im from south africa and do similar tig repairs...i think you did an excellent job sir👍👍👍

[@matteo5647]

Whats the filler rod?

[@paulerickson1906]

A beautiful welding job accomplished. I envy you're talent.

[@nabelspalter714]

Weil ich schon schlechte Erfahrungen mit massigen Teilen gemacht habe hätte ich den Kolben auf min. 200 Grad vorgewärmt. Aber er wird das nicht das erste Mal machen.

[@ze_german2921]

I also only weld while wearing my Top Gun Jacket! LOL I Love it!!!

[@HajoTanzmaster]

😂😂😂👍

[@just1nFPV]

Soo many internet welders that have never even picked up a torch...First off, Its a 12-50hp engine...there wont be too much stress on this piston. Also, he using aluminum bronze filler which means hes brazing not welding...His goal was to eliminate the crack so it wouldn't spread and fill in the crater he made doing so. Which is why hes brazing in aluminum bronze. Its not a structural repair, that's why there wasn't too much of a need to preheat. It could have been done cleaner and better, but this will do the job just fine for its intended purpose.

[@arthurmario5996]

I am not a welder, but wouldn't it be better to heat the Piston with charcoal before welding to avoid embrittlement of the HAZ?

[@ronkincaid9341]

Thumbs up to yay. You did a better job of repair with your grinder than I could have with a milling machine.Very niceRon in Ohio usa

[@reatonable]

And I always thought you had to heat cast iron up to weld it, learn something new every day.

[@geoffmooregm]

This is usually true. A bit of preheat won't do any harm. Just remember that "cast iron" includes many grades. Some are easily weldable with minimal prep and common fillers. Some cannot be fusion welded and will require brazing or silver solder to be repaired or joined.

[@turbochevelle5641]

We used to re-crown pistons for ships and we had to heat them in the furnace for hours then put on our insulated gloves and turn the mig wide open and basically spray arc them. Even with the insulated bunker gloves we would still get huge water blisters on the toos of our hands, sucked but had to be done. Cool video.

[@ludditeneaderthal]

Look at the filler color as he peens... it's a bronze braze

[@histufly]

It would be great to be able to see the puddle.

[@melvillewright9296]

Yes i was hoping to see the puddle aswell

[@V0ID_beats]

what's the purpose of the weird shaped top of the cylinder?

[@TVPiles]

To all screaming: how about showing us a video of you guys welding a piece of cast iron?

[@jasonstalder5208]

they cant, they have only googled it. shit ill bet my left nut they had to google the tractor its out of...

[@dzozepe]

actually i did weld it a few times mostly the car Spindles with stick electrode and when i preheated and post heated it it was great but i had the option to preheat with oxy acethylene and then throw it into the owen after the welding. I think the preheat was not introduced because of the size here.

[@zuluflight5467]

@@dzozepe try to wrap around some copper wire around the electrode. and while youre welding hammer the iron inside the cast iron..that works great

[@terry2xb]

Meine Güte was seid ihr doch alle krümelkacker.lasst doch den Mann seinen Kolben schweißen so wie er es für richtig hält?Der macht das bestimmt nicht zum ersten Mal und wenn dann hat er doch den Schaden und nicht ihr Besserwisser!

[@kevgermany]

Genau!

[@berndferger2767]

Gut gemacht.Vielleicht hätte man den Kolben auf einer Herdplatte aufwärmen sollen?

[@AEHiestermann]

Alle haben gesagt, dass geht nicht. Dann kam einer, der wusste das nicht und hat es einfach gemacht.

[@williamwestonn]

Why is there such a big difference in the material where you weld and the casting? Looks like your weld doesnt blend properly? its 5 years since i welded last and we usually welded aluminium so im not experienced in this? Why the coloring difference?

[@CATBRO]

That's exactly what I want inside my corolla

[@DumbCarGuy]

I'm curious too. So no end of crack drilling. Brazing cast iron which you can do. But how is that low melting point bronze going to hold up to the high heat in the cylinder with at least 23 to 1 compression? That is what I am curious about. Not the craftsmanship.

[@kevinwatson768]

I am wondering what filler material did you use?? Thank you Kevin

[@kikesaxo]

Hey that’s a nice jacket dude, l would totally use it to ride my bike... (which l don’t have) 😰🤷🏽‍♂️ 🏍

[@TheJunkyardmessiah]

Not badly done, But I think I would have taken out a larger area, I suspect some of the area around the fix is going to fail . I would have ground down all of the orange peel areas and used a light acid to see if I was into good metal or not. Then tig the snot outta it/grind /flap wheel it all out .

[@HEAVYMETALJSTYLES]

Interesting and cool. Im sure no problem, like the man said another 1000 hrs replace, its not like a motorcycle piston, that is aluminum or zinc, that's iron, more forgiving.

[@MrGuvEuroman]

Drill the crack ends to stop it creeping?

[@kmccurdy21]

I love the chipping out the crack method. I do the same thing on Alloy 40 HF repairs

[@Martuszewski]

Under inspection I’m shore piston is heat warped out of specs, and visually you can see impurities from the main surface and pin holes. This means trap air and impurities under the weld. It’s Going to crack over time.

[@peterzingler6221]

It's a frikin Lanz bulldog piston mate. The gap between zylinder and wall is almost a millimeter by factory.. There's not much spec to this after all

[@Randy13780]

Guss schweißen muss man auch erstmal können, also Respekt👍👍👍 Gutes video

[@Nordmanntanne96]

An sich hast du recht. Aber anscheinend auch keine Ahnung. Wenn man Guss schweißen will muss man es Spannungsarm glühen und es wird bei ungefähr 200 Grad Materialtemperatur geschweißt UND auch NICHT mit WIG sondern immer Autogen. Das was dieser Herr da im Video macht ist total falsch. Das hält auch bloß von morgens bis mittags.

[@Randy13780]

@@Nordmanntanne96 Da hast du recht, Ahnung vom Gussschweißen habe ich nicht wirklich, habe ich erst ein Mal gemacht. Aber Do it yourself finde ich immer gut. Danke für die ausgiebige Info, denn das mit dem Glühen wusste ich gar nicht 😊👍

[@krap101]

Will this fit in my Honda?

[@oshamdeen]

+krap101 it will

[@mrjodoe]

maybe if you take back seats out

[@FrustratedBaboon]

Put Honda engine inside the piston add wheels and drive it arround.

[@joshuaswart3228]

krap101 no it wont!

[@Guds777]

its bigger than your Honda.

[@cobrasvt347]

I have had much better results by preheating the cast before welding and using a air chisel for shot peaning to help relieve the stress. Not a bad job 👍

[@marcbailey8242]

Silicone bronze? Preheat, Post heat?

[@themediaman100]

Silicone?

[@flyguille]

And that weld will has the same thermal expand index as the piston?

[@aevan104]

No but it's that or nothing when those pistons arent made anymore

[@joshv3068]

😯 heard about this but never seen it done until now

[@Drottninggatan2017]

Gute Arbeit mit dieser Pistongen.

[@dzozepe]

no preheat? you waited for it to cooldown? Like small welds technique? What was the additive metal? looks more like brazing then welding with high nickel content rod?

[@robertatwood2503]

Better him than me damn I spent an hour after our building aluminum rails back up that were silicone and oil impregnated not something that I like doing nasty smoke stinky yeah miserable

[@jangeusens7987]

With which add martial you have welded it, is that just copper bagette, or type of material correct, I see that you weld it with the btig.

[@aserta]

Holly bonkers, that's one massive piston.

[@AppleJack76]

That is what she said.

[@mimakka2695]

+Mno good fusion between metal ( durty job)

[@russg1801]

...and a looong stroke, too!

[@stevenappu1492]

Ur work is undefeated , where is the Ur hand gloves

[@josephleister9198]

Is the piston cast iron?.....if so why would you use tig over pre heat and braze???

[@smathet7766]

Would you heat the piston to 400'F before welding it and heat afterwards?

[@rixogtr]

I dont know if he did preheat, but he didnt do post-weld cooling procedure....he stopped welding and then started grinding right away...And people there say, we are haters who say fancy shit

[@cwdtransport2247]

To answer the question.. YES! To minimize problems due to stress you must A Pre-Heat over hours, do the repair and then Re-Heat it up to say five hundred hold that for a few hours an then Reduce the temp fifty degrees per hr till you can remove it by hand. It’s little over kill maybe, but it’s always worked for me and my Grandad he was an old school Blacksmith coke forge anvil the works. I was in the Seabees for twenty Five years, you hang around Battalions, CBU’s, and NCTC’s long enough you learn just about everything you need. ChiefD

[@svendusmcveteraner]

Nice work Do You use stainless welding material and how many AMP do you have on the TIG welder👍

[@BlakeKane]

Isn't it gonna harden the cast iron and cause more cracks? I don't know just asking.

[@samuelsim7457]

That was some fine dentistry.

[@hectormaluenda1166]

This were the tractors that had almost a kilogramo of gold in the internals of the engine?

[@BeAsT281TX]

What kind of filler rod was used have some cast iron to repair myself

[@normandoty6133]

what kind of rod are u using to fill the crack?? how come u have not pre-heated the piston before u start to fill the crack with metal?? shouldn't you have put drill stop holes at the end of the cracks to try and prevent the cracks from continuing??

[@vassilisgr1972]

he probably used silicon bronze so he had not need to preheat, anyway that big cast iron should preheat to a certain point

[@rodneybynum8104]

There was no hole drilled at the beginning and end of the crack it will happen again . That's a lot of work to have happen again .

[@WikWak]

Im an amateur welder. But to me that looks like it has no penetration and is just gonna fall out. Is the filler a different metal

[@kevgermany]

Not welded, filled with braze.

[@oldrustycars]

Butane lighter laying next to welding going on?

[@Mercmad]

What type of tungsten, Filler rod and gas was used?

[@flydieselair]

Why did you not pre-heat the piston? Did you use stainless rod?

[@hoost3056]

Why the death march music for such a life giving experience?

[@randallgoldtooth9013]

So what kind of fillet rod is he,using,?

[@rogertycholiz2218]

He should have warned me to put on my welding goggles - now I see spots where there are none!

[@scooter1391]

what's the patches on your jacket looks like some type of military patchs

[@PoptartVT]

That's some premo pitting you got going on there. Personally, I would have touched up the cut with a diamond tip and a die grinder, so there was a smother surface to wield to. I am wondering though. On a piece like this, would he have pre-heated it?

[@gregorytimmons4777]

I think he should have. Pretty hard to go wrong pre heating cast iron but you can do less than excellent by NOT pre heating.

[@chadfabian3143]

Great job! Keep up the good work

[@zainoelsoroto2776]

Bro what the hell man i though you have sleeping effects

[@nightinthewhite3817]

isnt this from the engine that can idle at 0 RPM?

[@АлександрЛисов-л8у]

Этот поршень уже видел свет в конце тоннеля .... Но его вернули в эту жестокую реальность .

[@BigBoss-em3bz]

От чего этот поршень

[@Evgeniy.Aleksandrovi4.K]

@@BigBoss-em3bz ну возьми и загугли Lanz Bulldog, древний трактор с одноцилиндровым двухтактным нефтяным двигателем, также керосиновый двигатель, двигатель с калильной головкой, калоризаторный двигатель, полудизель

[@РустемРустем-ч3я]

Температурная жесткость всеравно влияет на месту сварки.будет отхождение, дольго не держить.это точно.

[@АлександрЛисов-л8у]

@@РустемРустем-ч3я Верное замечание , но , видимо , это делается больше для демонстрации возможности ремонта и вряд-ли этот поршень будет установлен на рабочий двигатель . Хотя , чем черт не шутит ...

[@NoNo-in5tu]

What kinda of filler metal are you using? 2% thoriated and straight argon?

[@Chris-yy7qc]

To me the weld looks like he used silicon bronze weld (tig brazing).

[@chrisinelpaso]

Good in my book! Will last another 100 years, easy...

[@markorr1874]

what about lighter next to piston their low pressure but will explode

[@dieselross86]

Ich hab mal gelernt das man geschweißten Guss noch rotglühend abhämmert um die Rissgefahr zu minimieren! Mit welchem Draht schweißen Sie den Kolben?

[@thorejonasson]

Das sieht nach einem WIG-Hartlot aus, zum Beispiel CuSi3. Ist also gar keine Eisenlegierung, die da eingebracht worden ist.

[@mattmcfarland9154]

Great job in saving that part that is now probably irreplaceable but one thing i wanted to say is not to have a cigarette lighter near your welding work why your welding its downright dangerous and i have heard of a welder that was killed from a cigarette lighter exploding in his front shirt pocket after a hot weld specksle had landed on it pleased "BE WARNED" accidents have happened otherwise keep up the great effort of keeping those old tractors alive and they will still be going well and truly after all todays new junk will be on the scrapheap.

[@johnsumner2987]

Just curious, why did you choose TIG over stick?

[@berntd]

Did it last?

[@НормальноДелай]

В теории конец трещины необходимо засверлить , как он сейчас работает ?

[@julianlaustsen1991]

the weld is full of air bubbles? why?

[@henricocamus3106]

whats the reason why you hammer the weld??

[@shaun2049]

Did you use copper

[@faktorfred2545]

So ein Teil kalt schweißen ist trotz Abhämmern Murks, und dann die Naht Einschlüsse!

[@bscabc8847]

+Faktor Fred und auch noch ohne vorher den Bereich zu schleifen.(Schweißnahtvorbereitung ) Anfänger ! ! !

[@douro20]

What alloy was used?

[@rogmags6337]

benny hill style hammering

[@tan4640]

very nice video. it would be great if you could show us actual torch work with covering camera lens with protective glass...

[@MaestroGlanz]

It also would be great for the camera.... :P

[@joachimschreiber7835]

this is cast steel not IRON, isnt it? i am looking for castSTEEL welding tips and stick electrodes...anyone knows this stuff?

[@Max_Marz]

No preheat on the piston before welding? May I ask what rod you were using?

[@repalmore]

+Max Maruszewski I'm guessing he used EZ weld filler. Just google it and you'll find the seller. He's reasonably priced relative to buying nickle rod. I've used it and it welds very nicely and does a nice repair.

[@d.slater3958]

I haven't learned how to tig weld yet but want to soon once I buy an AC/DC powertig welder. I heard that cast iron is tough to tig weld though??

[@repalmore]

D. Slater Cast iron is so hard to weld most welders will say 50/50 chance of it working. If you use conventional nickle rod(expensive!) you'll have to preheat, weld and if the welding doesn't keep the heat of the base metal up (engine block etc) you'll have to keep pre heating it till the repair is done then do a very slow post heat cool down. Real pain. The easy weld bypasses all that and you go strait to weld and your done. I've used it on engine blocks and exhaust manifolds. Had very good success with it. Don't get hung up on equipment. If you learn on a crappy old machine, you'll be an expert when you get a good one. Best of luck.

[@guidorollard2944]

Often it is done by soldering, i have seen this on many cast iron repairs. But you need a lot experience to do this job right

[@repalmore]

When you say soldering are you talking about using lead/tin alloy filler metal? I've never seen this process used. I've seen allot of brazing used in cast iron.