80-year-old man brilliantly restores broken engine block to genuine one
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- čas přidán 7. 03. 2023
- #80-year-oldmanbrilliantlyrestoresbrokenengineblock to genuine one
#engineblockrepair
#manufacturing #amazing #machine #restoration #technology #amazingtechnology #pakistanitruck
Most people watching this dont have the appreciation for this kind of repair.They just think oh hes just welding. Not understanding the difference with cast.I hope i can reach this level of repair before i die. Much respect.
Cast iron is one hards metal to repair my respect for this people
This is living proof that the elderly can provide a huge contribution to society. The old master is living his twilight years in dignity in the firm knowledge that his skills are being passed down to the next generation. The rich industrialised nations disrespect the wisdom and knowledge of their elders which leads to fragmentation of the family support structure.
The old master is getting fourth time married next month.
in britain the gov encourage older people to keep working
then tax them more not content with screwing them for 50 years already
That is a legit cast iron block repair. Well done!!
There's a risk of cracking and a risk of warping. And if that happens the repair fails, but yea, if it doesn't it's good. It's legit.
Many years ago my grandfather told me that cracked cast iron engine blocks would be heated in a kiln to cherry red. Then the crack would be grooved and welded. The engine block was then surrounded by an insulating material and allowed to slowly cool over several days. He claimed these blocks were actually stronger then freshly cast blocks.
That's the right way to do by your grandfather's method. Most pros today do it exactly that way still today.
I did it with a cast iron fly wheel for a small engine I have. It worked really well, I tried smashing it on my garage floor with no damage after.
Well that gets a salute from me. The accuracy that the fill metal was laid down and the way it seemed to all hang together during the machining. The old guy has 'the touch'.
using a torch? any metal worker knows that wont hold.... my guess is it blows out it about 20 seconds... then again I know how these guys like to show off they're skills but the type of metal you just used is a lower grade then the PROPER stuff.... wouldn'y surprise my if its just aluminium..anyway, I bet you dont get to see the engine running.... OR the swap it out with a runnin one
Hmm. Which bit do you reckon is aluminium? The crankcase/block it took two guys to carry or the metal they built the cast iron up with? @@harleyme3163
@@harleyme3163 not structural just closing oil leak in side of block and place for oil pan to seal .
@@harleyme3163Sorry but you have no knowledge about metals. Aluminium looks pretty different. Also it would burn within that flame.
I've been an engineer for 50 year. That is excellent workmanship with the tools available. A job well done. incredible welding. Cast iron is really hard to learn without getting cracks.
I thought he was brazing. Is this brazing or welding?
@@alext8828
Brazing is welding bruh
@@offinthehaedWelding is using a rod made from the same metal as the workpiece. It involves melting the workpiece. Brazing using a brass based rod on steel or cast iron which doesn't involve melting the piece being repaired.
@@jackfrost2146
With brazing ,it's true, your not melting the work piece....however, a weld, doesn't need the same metal as the filler. ie. you can weld cast-iron with nickel or stainless....nickel works well.
you are right with regard to Brazing...but the effect is the same. You are melting the filler to join or repair. Brazing has lower structural integrity than welding, but sometimes it doesn't matter....as in repairing a cast-iron block.
I was a little medicated when i posted.
@@offinthehaed Much better detail than your first comment! I did think that the first one was a little-- strange...
I've been in Pakistan and watched these guys at work. Their craftsman ship is really awesome. All done with the most basic tools, too.
czcams.com/video/WQTfMhk6Va0/video.html
Yeah I don't know if this is where you went but I will say that they are pretty basic from what I seen and good at it also.
@@Hamp72 Peshawar and Islamabad, but they do it everywhere. I just had time to watch in those places. Peshawar was a wild city, man.
@@RodFleming-World First Metropolitan city on Earth according to some historians.
@@Hindu_Shahi that's disputed. Uruk was probably earlier.
I'm a veteran cast iron welder and I have to say this guy is about as good as they come!I think he's using propane fuel which is the best way to go.I'm impressed!
I deliver propane, but I can't weld
Refreshing to hear a positive comment Ty for that
Very Specialist job is Cast Iron Welding I done my Welding Courses I chose to add Carbon Arc. 👍
Retired, code qualified on cast. Granted, it looks pretty when ground up. Pretty sure a proper PT (dye pennatrant test) would show it cracked to pieces. May hang in there a while but I wouldn't hold my breath. That said.....if that's your only option.....give it your best shot.
@@hokep61 exactly this. I rebuild industrial diesel engines for a living and we don't even bother to mess with cast iron like this. Rarely holds up and we have some decent cast Iron welders at the company.
In many places, that block would have been junked. It's satisfying to see these people working to give added life to this particular component.
-- Selangor, Malaysia
This guy has amazing skills, I thought I could braze, but he is the best I have ever seen
It’s absolutely amazing what these people can do using worn out tools and poor working conditions.There talents are really something. Great video.
Просто восхищаюсь, в таких условиях выполнить такую сложную работу, с чугуном, нет слов, просто молодцы золотые руки 👍👍👍💪💪💪
Он аситлен сварка варит штоли?
У нас сразу выкинули бы по дальше чтобы никто не видел.😅
@@user-xd3fz1ox1b точно!
главное чтоб тебе этот блок не достался
Без высшего, без технического, образования, без должного инструмента и станков
Absolutely brilliant cast iron repair job 👏 😮 Good job Pakistan 🇵🇰 👍
Ребята делают на коленке то, что некоторые на станках не могут сделать... респект!!!
А потом не бита не крашена :)
@@alexandrivanov7603 это уже само собой)))
Адекватные мастера такой хернёй не будут страдать
Pretty impressive what these men can do with very minimal resources and tools, starting with the man that did the brazing. If anyone has ever tried working with/welding cast, they can attest to just how dang difficult it is!! Respect to these men!!!
Same thing farmers did in North America 100 years ago.
@@rustygoldfanatic8830 Any footage!!??😅😅
Repent to Jesus Christ “But he was pierced for our transgressions, he was crushed for our iniquities; the punishment that brought us peace was on him, and by his wounds we are healed.”
Isaiah 53:5 NIV
J
@@4vepvik781lmao yea there is all kind of footage from the rock phone
Thats not welding, its brazing. And its pretty easy to braze cast.
This kind of craftsmanship can never be replaced by a robot, so far.😮
Robot would just of whacked up a brand new one in 1/10th of the time lol
If a robot did what these guys have, I would scrap it immediately.
When i was teaching oxy welding we would teach then how to weld cast iron with super silicon the same as being shown here, it's 1 of them old skills that are being forgotten, kudos gent's from australia
Super silicone? What is that . Yes I know it's a welding rod but never heard of it
Goggle super silicon oxy welding filler rod for the best answer, if you are good at braze welding you will find it easy to weld
@@michaelnoyes4817 thank you
@Yamaha Japan it's what it's sold as here in Australia, it comes in square or round and it has the appearance of cast iron, it's not bronze
I see no reason to insult someone, but I have seen Super Silicone in bronze. Really, the important thing is he is a master.
The guys from that part of the world are the best mechanics in the world.
This man is an artist. If you ever tried to welde cast iron, you will be able to judge his abilities. Congrats from Germany.
@ fastmurx Agreed! This man’s skills & determination is superb! Greetings from Martinsburg, WV 🇺🇸
It is difficult for sure, i have welded a lot of things but cast iron was a fail for me.
Nice work.
В Германии такую работу уже нкому сделать. В Германии предложили бы поменять двигатель или машину
@@Longrider1 it will not last long. I have seen it done on the piece that holds the starter on and sure it will last a little while but not long. I may be wrong about this weld but I am just going on what I have seen.
Amazing craftsmanship! Super labor intensive but great outcome.
repairing a cast block is a real artform especially in such a rudimentary way. I really admire the skills.
Don't sweat it because fossil fuels are going away anyways along with engines.
Do you also admire breaking to block just for the video. He’s about 40, not 80. Don’t be a clickbait sucker.
czcams.com/video/WQTfMhk6Va0/video.html
😢
PAKISTANIS' GOT TALENT😍
😮😊 I'll say good for the 80-year-old man. He knows how the well the corner of an engine block back to looking like brand new. They won't have to send out and get another engine block that cost money. It's good he can repair it like that.
Wow, so impressive. This gentlemen knows what they do vastly. Congrats and I enjoy every video. Love it. ❤❤
These guys are awesome! Simple tools to fix what most in america would call scrap! Love to study with these guys!
kasten.......this kind of thing was done in America and most likely in many other countries on farms. It's not brilliant at all and lots of stuff like this if fixed with JB Weld.
@@johnarnold893
"ABSOLUTELY!"
That is the first time l have ever seen a block tooled with a grinder.
You really have to know your craft to weld cast iron.
Too hot the metal disintegrates, too cool the weld won't take.
A black smith taught me how , he could do it by the color of the iron, l never could get it just right.
The man here is an artist 👌
Remember that the Lord Jesus Christ died on a cross for you because He loves you so much. He then rose up from the dead three days later
The Ten Commandments are called the moral law, (most of us are lying thieving blasphemous adulterer at heart and deserve hell) you and I broke the law, Jesus paid the fine. That’s what happened on that cross.
By believing that Jesus died on the cross and rose up from the dead 3 days later and not just confessing your sin, but also repenting of all sin you have done and putting all your trust in Him in prayer, He will grant you everlasting life as a free Gift.
Nice work, Pakistan!
Все ждал момент, когда они плоскость у блока сделают, но видимо это не требуется, чувак болгаркой до сотки вывел 😂
Зачем там идеальная плоскость это поддон ,а не ГБЦ
Они ГБЦ на бетон шлифуют. 😂
@@user-hcmuzer правильно герметоса навалят по больше
Раньше вообще напильником выводили.
😃
The world needs more geniuses like this guy.
the world needs less idiot like this scammer. ps brazing is like using a piece of tape to hold metal together.... OH sorry HI I' a profesional welder, had it been welded under mig or even stick you would get something that lasted more the 10 seconds under load.. :-(
Now that's engineering on another level. It never ceases to amaze me at what these guys achieve with the tools they have.
my words exactly
Bahahahahaha ya ok.
What a joke.
Couple of things about this one. First, this is brazing not welding and it's the proper way to repair cast iron. Second if done right the repair will hold. Remember that when it was new the block was being held in the engine bay by a bolt which concentrates the stress in one small place, this brazed flange that he built up connects to the block in a much longer area so it's going to have a lot less stress on the material joint. But something else that isn't mentioned is it is quite clear they have been brazing on a LOT of these blocks because they had the slug made up in the dimensions of the crankshaft and it's seen a lot of pitting in between the mains so that indicates they have done this repair many times to this kind of block. I think it's clear the company that is casting these blocks is using crappy iron that's probably full of impurities, the blocks are crap, and suffer frequent failures and this shop sees them all the time they probably do one or two of these blocks a day.
The thing to remember about engines is that the reason that we are so anal about tolerances is we want our engine blocks to last 200k+ miles, but if you have ever worked on repairing lawnmower engines you know that those are really all over the map - the factory has tolerances for them but an engine that's sucking in grass that never has it's oil changed by most owners is not going to maintain it's tolerances very long. Yet every spring I collect 2-3 of them that people have set on the side of the road with "free" signs on them and it's always the carbs are full of crap, never a failure in a block.
With all the heat that was put into that block, is there a concern for warping? I see they tried to used wet rags to cool but still.
Look at the chips when they drill the holes. Those are not brass brazing material. You can see the little bucket full of cast iron bits that he’s using as filler rod. Probably vent gates cut from castings. He’s also restoring this to how it was, putting all the mounting holes in the original places or close to it.
@@jon_byler 14:42 filler rod material cut from old cases.
This is true skill of workmanship totally amazing , UK 🇬🇧 👏
This guy is one of the best cast iron welders on CZcams
looks like steel to me. not nearly hot enough to be welding cast iron.
@@richardhuckaby5422 it's an engine block, engine blocks are not made of steel and cast iron and steel glow at the same temperature, you might have commented on the wrong video
That is not welding, it is brazing.
@@sisua45 it's oxy welding, everyone knows it except you that's why you are the only one to say it, I envy men that don't feel embarrassment for saying stupid things
That is steel lol
These guys are amazing with just primitive hand tools they fix things that many modern shops would struggle with
Beautiful Repair! We would have less waste if we had more skilled craftsmen in this world to repair things rather than just discarding thi gs and replacing them.👍👍👍
disgusting
Това е "МАЙСТОР"!! Има златни ръце! Кой в Европа ще направи такава заварка!? Чест и почитания за "МАЙСТОРА"! Поздрави от България 🇧🇬👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍
Ого. Даже приятно всё вполне😂
No olvides que ellos aprendieron de los europeos y no es broma
Той е от Пакистан.. те са много назад
На работу мастера можно смотреть вечно. Жму руку!
А немцы какие-то последние технологии применяют. Дрель и сварка! )
@@Jivi_vecno sorry, I don't understand.
Imagine these guys with the latest and greatest equipment! Great job!
If we is in that place he will trough the block away
For those of you that don't know this cast iron is very difficult to weld, not sure if this will hold up but the fact that it looks good and there are no obvious cracks is impressive.
Not sure if they deck and plain them or not after this, but yeah, having seen some iffy fixes on the iron block 5.3 ls our of the trucks. lets hope this holds up for a bit for them.
@Repent and believe in Jesus Christ you are taking to the welding?
@Repent and believe in Jesus Christ how about no.
@Repent and believe in Jesus Christ Hope he strenghtens that block, because sure as hell they will not.
@Repent and believe in Jesus Christ What if you were born into a Nomadic Hunter-gatherer tribe on my island who never went to school, and doesn't understand any other language except their own tribe dialect, would you still have known Jesus?
I am glad you chose to make videos like this on CZcams. No doubt it inspires others with creative skills to repair things that was given up on by others. These videos are above entertaining. Educational as well. Tks
I have a lot of skills and use my hands to make a great living, but I have no idea how to weld and am always impressed with the people who can weld and do it well
What's the Warranty now?
48 months? 24 months? 12 months? .....2 weeks !?!! 😂
Easy to pass such remarks but no one would be doing these repairs in Pakistan so commonly if these weren't reliable repairs. A 76 old dude once made the entire engine for my 99 civic. His creation has outlived him. Knock on the wood
Great work uncle! Those are some true blacksmith skills! MashaAllah
God bless this people and their business.
The comments were spot on for the skills shown, wow! Great video that just shows what can done and how if you endeavor. Hats off to all that get the job accomplished
Они реанимировали чугунный блок с такой чудовищной поломкой в условиях обычного гаража! Моё почтение и уважение этим мастерам. Сварной от Бога просто.
Cm B🤣🤣🤣🤣эти ЧУРКИ ДА ИЛИ МЫ
👍
👍
брату на мтз тоже заваривал блок , ничего сложного , знать надо что и как ну и руки конечно , в деревне у нас не такие чудеса приходится делать особенно когда движок стоит пол трактора
these guys are simply brilliant hats off to genius work.
Definitely this cast iron, and it is skill fully welded through decades old experience, and it should hold as well, I had a cast iron ejector assembly bar broken from center, almost a 1.5 meter long, it was welded and it lasted as long as the 500 ton injection molding machine lasted. Good work.
I‘m a veteran engineer and cast iron welder with 50000 years of experience and fixed engines for the queen and I have to say this work is ok.
Привет из Питера! Это восхитительно, такова мастера я не встречал, респект и уважение, у нас на заводах делают хуже, а люди в полевых условиях делают вещи!!! Здоровья, добра, благополучия и мирного неба над головой
@@user-lj8mr1hf3t А нехрен..... надоели..... получите.
Que genios ...!el hombre de la soldadura es un maestro 👏👏👏
Remember that the Lord Jesus Christ died on a cross for you because He loves you so much. He then rose up from the dead three days later
The Ten Commandments are called the moral law, (most of us are lying thieving blasphemous adulterer at heart and deserve hell) you and I broke the law, Jesus paid the fine. That’s what happened on that cross.
By believing that Jesus died on the cross and rose up from the dead 3 days later and not just confessing your sin, but also repenting of all sin you have done and putting all your trust in Him in prayer, He will grant you everlasting life as a free Gift.
Lo arreglan todo...son lo maximo....todo tiene arreglo en Pakistan,Saludos desde Chile
Thank you for showing the finished work in the beginning of the video.
Admirable craftsmanship is the combination of physical and mental abilities with a large amount of perseverance. 🤩
Brilliant craftsmanship! An absolute pleasure to see.
Вот это работа !
In Pakistani these skills still exist because they need to, nothing is thrown away or wasted and therefore the skills get passed down. This old gentlemen’s skills are sublime, well done sir, much respect from Australia
A very good skillset to have! This kind of engine repair is becoming obsolete, not just here in America, but all over the world. Great job!
For good reason. It’s not reliable and unlikely that it will survive a more powerful engine. Just buy a new block.
@@binyamj I've seen small cracks repaired, but I doubt very much this would be repaired in the western world, its just scrap value.
Thank God. I'd fire you if I caught you doing this kind of stuff in my shop. I'm not impressed until I see that engine block actually installed and running without leaking oil everywhere from the hand sanded flanges. And from the look of it, it looks like a 3 cylinder diesel engine. Dying to see that totally non vibrating style engine, running at all, after 3 months of driving down the dirt roads they have there. Also, gotta love the attention to accuracy you can attain while working outdoors on the ground. And yes, I can and have done what they are doing, including the brazing...and much more.
@@binyamj no stupid. Its not cost efficient. Plus,masses have been promgramed into consumerism,chuck and buy new. Its reliable alright,something your brain isnt😂
@@macbirt56 stfu yank. This country is a joke now.
This man is what you call a master craftsman 😎👍🏻✨💖
well done guys. Very intriguing video.Thouroughly enjoyed it.
This is what America did before it became a throw away and replace society. I can still remember how my Dad repaired everything from engines to replacing house foundations. I guess this is what a third world country goes through. Kudos to these skilled workman!
It's a great "last-resort" kind of repair, but it just won't last. I've seem many such repairs to cast parts large and small, and they can't ever be trusted. It may hold for a while, but it won't ever be right. Certainly resourceful....i am glad to have more modern facilities.
When you live in the armpit of the world, you must learn to fix and rebuild everything you get your hands on. Great job
Armpit? This is Asia, not Chicago or California….
Yeah he lives in a country that is poor not by choice but through result of imperialism. Now America is shit hole full of idiot by choice
Impressive brazing skills. I liked their trick on leaving the tap loose in the chuck so it didn't break under strain.
✋️
I could barely watch the tapping 😬 honestly I'd rather hand tap it then whatever that was
I don't think he left the tap or drill bit loose on purpose his chuck was junk anytime the tool spins in the chuck it damages the tool and chuck
Интересно увидеть этот двигатель, после года работы!
Через год выльют новый блок, поршня и выточат коленвал. Соберут на этой же табуретке, и не будут париться
С хера ли ему работать год...
Постель коленвала повело, не говоря уже о геометрии цилиндров.
Все похоже на то, что и точные токарные работы, которыми можно было бы что-то в этом блоке исправить на момент сборки - им не известны.
@@vladislavkucherenko3788это,так называемый серый импорт,зачем им физика,сопромат и т.п.,лишние это.🤣
Х....ня это все...тут и речи нет о свойствах материалов и ТД и ТП.короче говно и палки.
A month
All my respect. This old fellow has off the charts skills. I'll go with Ni rod.
I would love to see a test/follow up video of the engine or whatever it is these videos show people rebuilding like this.
They seem to know what they're doing.
Agreed. Put that block under pressure on the highway under extreme conditions and someone may be calling for a tow truck.
Вот поэтому и не жалко машину в пропасти!
Gent who taught me to weld did this type of weld repair on stationary industrial gas and diesel engines running power stations, sawmills, etc, etc. The last one he did was still running a full work week every week 30 years after the repair. It had been re-sleeved a few times but the block repair was still holding fine. If you've been taught and had it driven into you that it can't be done then you'll never be able to do it unless you cast that preconception aside and think your way through it and give it a good try. Having someone who already knows how to do it well train you to do it will of course make it much easier. We unfortunately never had the opportunity to weld an engine block or transmission housing before he passed away.
Best!
Fantastic Workmanship.
You can't beat experience and wisdom.
11:25 I love the extension cord in the mud puddle!
They edited out the loud “CRACK!” As it cooled 🤣
Son lo maximo.todo tiene arreglo en Pakistan.....desde Miami Florida Saludos.👍👍👍👍
Эти люди выживут всегда
why do you use this shit cyrilic
Эта Чурки 😂😂 или мы
GROßEN Respekt , und Hochachtung !!!
Good job !
Im glad to see some of these guys wearing shoes and not just sandals.
Safety first dude.
Great skills man of Pakistan
Like only an 80 year old can!!! Knowledge fledglings....it's golden
I've seen many of these bodged repairs under way, but yet to see an engine running.
Necessity is the mother of all inventions! This guy is obviously an artisan of note, fixed that engine block like a true artist (outback style)
I find it amazing that these guys can do these repairs with rudimentary tools, yes my machine shop with bitch about me want a Brocken ear fixed on a factory 1940s exaust manifold. Some people are to lazy to do what is right while others flourish while squatting in the dirt. Big thumbs up to these guys and their work.
I read an account from WW2 where a PT boat ran up on a coral reef and bend the drive shaft. Some local craftmen used a length of piano wire ( as a straight edge ), a block of wood ( for cushioning ) , and a hammer. They straighted the drive shaft to better than factory specs in only two weeks. Otherwise the crew would have to wait 3mo to get a new one from the U.S.
Is it cost effective, and did it actually work?
Remember that the Lord Jesus Christ died on a cross for you because He loves you so much. He then rose up from the dead three days later
The Ten Commandments are called the moral law, (most of us are lying thieving blasphemous adulterer at heart and deserve hell) you and I broke the law, Jesus paid the fine. That’s what happened on that cross.
By believing that Jesus died on the cross and rose up from the dead 3 days later and not just confessing your sin, but also repenting of all sin you have done and putting all your trust in Him in prayer, He will grant you everlasting life as a free Gift.
@@dove3853 You believe any crap. Where were you before you were born? Jesus was evil he drown babies and children in his flood and demanded cruel death sentences.
Few trades people will repair stuff these days - its just buy a new part and fit that. (From panelbeaters to mechanics).
How many other cracks were created when that cast iron was heated on one corner instead of evenly all over before brazing began?
This Indian guys are just as good as us Mexicans on improvising when there's are no high tech machining equipment around very impressive skills indeed.
Indian ??? 😂
@@nothing8822 Red indian
not Indian but Pakistani
It’s done in India too but this one is from Pakistan.
The guy with the water bottle is like the nurse in an operating room keeping the site irrigated and clear. These guys are doctors. They're just not allowed to work on humans. I think they're great.
Wow, he's so perfect there were no measurements required!
I saw them hitting it with calipers once. As for the tapped holes, there is still one existing in which something bolts to. They can bolt it up, and transfer the dimension to the block. (or they already know the spacing). For what they are doing, there is no need for a lot of dimensions. The flat decked surface will be milled flat again.
The beauty of oxyacetylene. You can braze, weld, cut, free stuck bolts and much more and it’s all so quiet. Great to see these skills alive still.
Have you ever seen an acetylene cylinder explode?
@@TheRebelOne. Exactly, it’s all so quiet but definitely more dangerous than other welding.
It’s not quiet. On the video it sounds quiet but in person it’s louder.
Any inflammable gas cylinder can explode...still people use it..
pure artist !!! a master craftsman repairer !!!! skills like this will be lost forever when this talented man passes away 😥😥😥
No! These Skills are lost forever only in our western countries where people are today just able to click a mouse... that's why our civilisation is dying...
czcams.com/video/WQTfMhk6Va0/video.html
В 99% мастерских этот блок признали бы не ремонтным. А вот этот мастер своего дела сделал отличную реанимацию.
Old Mammet doesn't need and cutting fluids or coolants, he goes right for the smoking drill bits and taps.
Good job dude!
Да, талантливый человек он везде талантливый, хоть в Америке, хоть в Пакистане...
Высший пилотаж👍👍👍
Love how he uses the charcoal to scavage oxygen and keep carbon content high.😮
Aha. I was wondering what the charcoal was for.
Wow it really adds carbon to the weld..?
@@Radio_Flakes not true. Brazing does not melt the base metal. Clearly he was puddling the base metal and was torch welding. Arc welding is simpler for welding creating a much hotter metal but torch welding is very effective ( use to be common).
I was literally cringing multiple times 😝
How is that adding carbon? Is this man some sort of magician that he can transfer carbon in this wy?
Brilliant Pakistan👍👍👍
Greatings from the Netherlands😊
Молодцы ! Способны сделать кажущееся уже невозможным!👍👍👌👏👏👏❤️
artist at work
Excellent mechanic.
I was looking at the charcoal and bricks and thinking the bricks prevent too much heat from being spread to the casting thus reducing distortion and the charcoal serves two purposes , to reduce heat spreading but also to break down into carbon dioxide and shield the welding area from oxygen contained in the air , so these people are performing a carbon dioxide shielded weld ! Ingenuity indeed .
what great guys these mechanics/creators are. i never get tired watching and learning from them.
Very interesting, and I share the reservations/admiration expressed below about welding cast iron. It reminds me of my years in Africa, when spare parts weren't obtainable. I raced a go-kart, and one wheel had a large chip on the rim. A fellow-employee offered to weld it, thinking it was aluminum. He gave up, saying the welds wouldn't hold, and the wheel emitted a shower of sparks. Being a chemical engineer, I realized that the wheel was made of magnesium, and there was nothing I could do.
This is where everyone is getting the engines from to build new cars in America