This may be a Lister D engine which made between 1.5 to 2.5 horse power. I would suggest the repair is easily adequate for that sort of output. The shaft he replaced is the output probably driving a belt in which case a bit of runout doesn't matter. For the life of me I can't understand people criticising these skilled men working with the machinery and tools they have available to them. No doubt they don't use a micrometer or dial gauge because they don't have them. At least no one has commented on their clothing/footwear which seems compulsory on almost every other of these videos.

@nutgone100

2 ай бұрын

It’s definitely not a D, they had an overhung crank. Looks like a later diesel engine. I’m in total agreement with the rest of your comment though. It’s more than likely a 5-10hp engine that is running slowly, probably less than 1000rpm.

@ThermoCoupleNZ

2 ай бұрын

nope won't last long like that.... mechanic here with 30 years experience..

@maherelkashef6040

2 ай бұрын

I didn't imagine how he used the grinding missile to finish the outer diameter of crankshaft 😂😂

@allanylitalo2206

2 ай бұрын

mmmmmå elo tmi Mi Mi ejk

@kingfrett

2 ай бұрын

@@ThermoCoupleNZ 30 years with engines that old?

Another "repair" video to feast on the gullibility of the KZread viewer. The moment he clamped on the bearing journal was proof this is for entertainment purposes only.

At the beginning of the video: It#s necessary to transport some

@gneric85

2 ай бұрын

"I can't be walkin' and carryin' things across streets and whatnot. I don't get paid extra for that"

отличная работа теперь можно смело нести в приемку чермета

Put in an engine, this crankshaft would be a time-bomb. Good for nothing but paperweight.

@khester7397

Ай бұрын

Even assuming the crank is a "time-bomb", as you say, what's there to lose if your solution is to junk the engine anyhow?

@WeeShoeyDugless

29 күн бұрын

​@@khester7397 Pick up another crank, they're plentiful. This 'repair' never went back in an engine😂😂

Не вы видели, какое биение на опорной шейке😂😂😂, чисто ремонт ради ролика, не более! И то, для ролика сделали на отшибись!

@variousshots7927

2 ай бұрын

Я заметил сильное биение на задней бабке

@Torn110

2 ай бұрын

Вал с какого то древнего чуть ли не парового движка, поставят и еще отработает хрен знает сколько лет. Наверное обороты движка очень низкие, нагрузка маленькая, смазка салидолом щепкой....

With all the rust on the bearing surfaces, someone used a lot of force to break that. An oh shucks moment.

I assume this man has a technique for this kind of repair, and this Lester motor was picked up on the cheap for a new purpose,very ingenious and probably has many years of this type of engineering. To do this and it works for said time. This man is a genius, I doubt anyone in the United States has the gumption to this type of repair. Very interesting to say the least.

Сварка прямо в токарном станке. При этом не видно, куда подключен второй провод. Похоже, ток шел через подшипники. Станку это сильно неполезно. Хотя, если он только такими работами занимается- на качестве "продукции" это не скажется...

Руки оторвать за такую работу. Молоток и токарный станок вещи не совместимые.Выгнать такого работника надо.

Yep, that's well balanced, and a great job on polishing.

I wonder how many commentators know about pouring bearings, or how it’s done.

Incroyable la réparation. 👍👍👍 avec peu de moyens, de la débrouillardise et un gros cœur. Je ferais pas tourner ce vilo à 6000 tr/ min mais pour cet emploi, ça va suffire.

This all are hard working man, with the lowest salary you can imagine. They do their best to earn some money to feed their families.

Under the circustances and the equiptment available for the repair, this is an EXCELLENT job. I'll bet it works for a long time. Thanks.

He did not just polish (?) a bearing journal with an angle grinder, did he? I KNOW he did not hit that tapered shaft with a grinder...it'll never fit properly again. Plus, there HAS to be a seal at both ends of this crankshaft that will be destroyed with the finish....if it contacts the shaft after removing too much material. Did anyone see the dead center wobbling during the machining? A couple taps with the hammer and a dial indicator would have made this fix even better. I know there is limited availability for some materials, but they seriously can't find something to lubricate the way-too-coarse sandpaper while polishing (sanding!) a ROD journal? Maybe step it up to at least 320 grit or possibly 400? I'm just guessing nobody cares about the thrust surface of the crank either...it is 'fixed' but I don't think this fix is even a little effective at getting it to stay alive very long. Maybe...just MAYBE it's going to a engine shop next to get the journals polished and trued up again...and maybe magnaflux that weld to see if cracks formed welding something-steel to cast iton?

@PecanRanch

2 ай бұрын

He’s a junk artist 🎉

@ericd7532

2 ай бұрын

There has been an endless stream of these videos recently. Casting brake rotors from old soup cans, welding together heat treated cv axle shafts, etc. Either these repairs are fake or they don't last more than a few hours.

@daleolson3506

2 ай бұрын

Congratulations you have made garbage

Nice center-less grinding job on the tapered shaft. Definitely a precision fit. And using a center-lathe as a rotary welding table. Neat. All the current goes through the spindle bearings.

Lovely how he welds the bearing of his lathe at the same time

That is a lovely boat anchor.

@dragoncoffee2949

2 ай бұрын

As long as its not a heavy boat, maybe a book end?

The worst thing is that the mechanic workshop is far from the lathe mechanic, and then you have to go by motorcycle!🤭

Что показывает ультразвуковая диагностика? Металлолом?

Great ..... now it's slightly shinier scrap metal

Сейчас вкладыши из трубы точить будет😂,

Центр на задней бабке бъёт. Шейки коренных, шатунного микрометром не проверил. Ржавчина осталась. Вал не закалил.😢

@PomeoBapHayBu4

Ай бұрын

ну на уя ЗАКАЛИВАТЬ ТО ? полировка болгаркой прямо на токарном станке - СМОЖЕШЬ ПОВТОРИТЬ ?

Главное заказчику понравилось

@Alisb2580

2 ай бұрын

It is completely wrong, you should not mix and weld factory sizes and lathes and....

Couldn't they just go walking across the street? Unbelievable! Haha

Все видел в своей жизни, но как шейку калинвала с наждачкой точили не видел, просто мастер класс показал.

@user-sq5nx1gs9d

2 ай бұрын

не все видел! например учебник русского языка точно не видел

@user-by4zb5hk6m

2 ай бұрын

@@user-sq5nx1gs9d Сергей а Вы сами другими иностранными языками владеете или только балаболите. Тоже мне нашолся учитель русского языка хренов.

@user-sq5nx1gs9d

2 ай бұрын

@@user-by4zb5hk6m Кроме русского еще два языка знаю, при этом если я пишу на русском я не позорюсь, тем ботее настолько как вы. Кстати да... нашЁлся. И да. Нашелся учитель русского языка для таких как вы - учеников долбодятлов

Great job!

The Scarecrow was in search of a brain going to the wizard of OZ , This guy can't even find the yellow brick road !

A typicle 3. Wold fix. Will last 50 miles then its not his problem anymore

@rosewhite---

2 ай бұрын

it's a big old single cylinder and lightly loaded. the metal looks to be some sort of hard cast iron so presumably the machine it ran broke and seized causing the breakage,

@JohnRadke

2 ай бұрын

Aaaqeqe4qq 1wqqqqq​@@rosewhite---

Admiro essas pessoas...muito competentes... abração a eles..🙏

Биение на коренной шейке десятки 4 ,видно на глаз,,,,,долго наверное будет коленвал ходить😂

После таких монипуляций болгаркой посадочное место подшипника прослабнет,😂

Parabéns pelo vídeo e Criatividade 👍👍👍🔩🔧🔩🔧🔧

*I see many parallels with the lunar module. Did he nail it together?*

Ellerine sağlık ustam 😊

шпонку забыл болгаркой пошкрябать

Good enough!

Now place it in a glass cabinet for people to admire.

The material would hold but the Maschine dosen't work good with this because polishing at last with the angle grinder is the death of this Projekt. I like the Idea and i would like to see how the engine runs.

Estes rapazes são umas feras ! Como conseguem usinar aço rapido temperado SAE 1060

Good job

you can not cook on a lathe , because of this, the bearings on the shafts may be damaged , due to poor contact , the rollers will overheat and begin to collapse . Because of this , current collectors are even made on locomotives , so that currents do not pass through the bearings and do not overheat them .

Amazing workmanship! Thank you for sharing this video. Greetings from Madang, Papua New Guinea!

We all view these repairs based on what we work with in our own countries. Most of us watching this would be used to the accuracy required for a car or motorcycle engine, where they rev high and produce large power. This crankshaft is not for that type of engine, it is for something as simple and crude as a ~1900s vintage engine which really do rattle and bang away. Also if it runs white metal bearings, instead of shell bearings, they will pour new ones

Думается мне, это пустая затея. Вал словается.😢

@user-do5jn5xk2v

2 ай бұрын

Он не сломается, а согнется, его отпустили.......................

@inflamerss

2 ай бұрын

Его никто не будет ставить, это видео ради просмотров, вал пойдет в помойку. Он криво сварен, шейки прослаблены болгаркой, кроме того отпущен.

well, atleast his lathe is quite clean. Its good start.

oni wkrótce polecą w kosmos na drzwiach od stodoły

Pués me parece un gran trabajo de artesanía. Lamentablemente si se quiere utilizar como repuesto de un motor no va a servir, se va a romper rápidamente en varios pedazos. Por la sencilla razón de que para poder rectificar las piezas en el torno tuvieron que recalentar las piezas para destemplarlas. Y cuando terminó, en ningún momento vi que volviera a templar las piezas en un horno para que las piezas recuperarán su temple o resistencia de fábrica para que las piezas puedan soportar las altas tensiones a que van a ser sometidas.

Will last from noon till lunchtime

Через дорогу на мопеде переехали😂 Где так не ленивые, а тут ...😅

I’m all for whatever it takes to repair the broken in two crankshaft with the magical skills of the man on the lathe who is a perfectionist having watched previous episodes and his renowned workmanship and craft is very much appreciated by those that depend upon his engineering expertise eye for detailed as a results of his incredible work

@Aleksandr_Eni

2 ай бұрын

Да Вы чего? Это работать не будет! Снимают для контента. Если этот хлам поставить на машину - все разлетится в дребезги. 100% - гарантия! 🤣

@user-iw7yg4vx7i

2 ай бұрын

​​@@Aleksandr_Eniна какую машину?😅𑰿о вашему они всегда все для контента ремонтируют? И сломанные полуоси грузовиков и шестерёнки заднего моста? Потом для виден все это собирают и грузовик так для контента уезжает ??

@Aleksandr_Eni

2 ай бұрын

@@user-iw7yg4vx7i Данная деталь работать не будет, а если и будет то не долго и с огромными вибрациями! ИМХО!

This part was not broken, it was cut to show what can be possible to repair. In a Lister diesel with overzised parts running on 600 rpm/min it can be possible if u do it properly (I have done crazy repairs a lifetime in the norwegian army just to investigate what can be possible) And because the part probably was not ment to be in use again he didnt had to do it correctly perfect, it was just a show off. I guess this guy in his homecountry is a very clever craftsman, he has scills. To know its a show, just look at 1:30 when he measured the axial distance with his calliper, he knows better than this, but didnt bother! Like most american filmmakers that produces movies for average ignorant people. I could find many details not made perfect here, but this comment is already long enough.

I doubt the strength of this camshaft after it was heated redhot. It's no longer tempered as it was bfore.

😢 Asu ya la tenias pero a seguir practicando

And you think that welding on the surface will take the torque? Yeah, right!

@53-herbie39

2 ай бұрын

The same i thought. When the engine was strong enough to break the whole genuine shaft before, then - of course - it will not break the fixed shaft, whih is only welded on the surface..... OMG. But thumb up in the video was his last action.

Looks nice but it wil break onder load soon

ข้อเหวี่ยงติดมากับตัวยังหัก ยังไงก็ใช้งานได้ไม่นาน

espero que el trabajo para soldar un cigueñal facil i el mejor para siempre

I don't know what kind of 'heat treat' it had when it was made, but I'm guessing it diasappeared with the cutting torch. Having said that, considering the type of engine this is going in it'll probably still be 'put puting' away in ten years.

My guess is that it isn’t a very high RPM.

@orestmedvid2704

2 ай бұрын

If the crank shaft is from an engine used as a gen set you would be looking at 1800 hundred RPM to achieve 60 Hertz , but the broken stub was never properly centered ,not even with your basic knowledge of set up and matching , like putting the lathe in neutral or out of gear and rolling the chuck/ spindle slowly and bringing a soap stone marker slowly against it to feel out the high spot or the runout , yeah give them a lot of credit for efforts but ultimately on the runout problem alone , N.F.G. or N.S.F.. Ha Ha Ha sorry Guys no disrespect !

I'd like to know what broke this. I seriously doubt that the engine that this comes from is capable of the torque needed.

@peters9929

2 ай бұрын

This crankshaft is from a single cylinder lister engine. I restore old engines as a hobby , have seen this issue myself. Usually starts from a crack in the keyway that migrates and snaps the shaft. The end that is broken is the flywheel end. although they run low speed from 1000 to 1500 rpm the flexing in the shaft due to the big flywheel and being a diesel is the problem Never seen this issue on the twin flywheel engines as the twist is reduced. One problem is see is the lack of indexing of the flywheel when it was welded, as the flywheels are usually balanced as a unit, with the crank shaft. Im hoping there was some form of stress relieving of the crank shaft after welding. But all powers to the workers do what you have to do with what is available. cheers from Australia.

@philhealey4443

2 ай бұрын

Would be helpful to have seen the surfaces at the failure point, most likely a fatigue failure after 50 years service, possibly in a slow rpm situation in a critical band for torsional vibration. I picked up a new, boxed crankshaft for my Lister JP4 for 180 quid, so I'm probably good for 200 years I think.

@firstlast-ty4di

2 ай бұрын

@@peters9929 Your reply seems reasonable. The keyway certainly could be a stress concentration. There is no cracking into the keyway though. It also looks like the shaft was not initially broken into two pieces; there is evidence of a cutoff wheel being used. I wonder if it might also be possible that someone used a sledge hammer to drive the flywheel off of the taper.

@firstlast-ty4di

2 ай бұрын

@@philhealey4443Your speculation also seems reasonable. Years ago I worked on stationary oil field engines. That equipment is enormous for the relatively low power they produce. While there can be a lot of wear on sliding and rotating surfaces, I seldom saw load related failures to components.

@peters9929

2 ай бұрын

fully agree 🐨@@firstlast-ty4di

полировка болгаркой... теперь в этой жизни я видел всё

Run out? As in run out the door as quickly as possible and don't look back.

You are Doing Good Keep It Up ❤❤

However in my opinion it is cheaper to go for New replacement rather than rebuilding the old one. Specifically in such components. Thanks.

@kingfrett

2 ай бұрын

There are no spare parts for engines that old!

Столько работы, а выхлоп то будет, сомнения меня терзают???

Congratulations nice way to ruin a crankshaft, run an angle grinder over the bearing surfaces, also the run out on that is huge.... junk

@WayneCook306

2 ай бұрын

Agreed

@PecanRanch

2 ай бұрын

Junk

@daleolson3506

2 ай бұрын

Terrible

@rosewhite---

2 ай бұрын

big old single will run perfectly well at medium speed. it's not a racing engine.

@ThermoCoupleNZ

2 ай бұрын

@@rosewhite--- hahahaha for about 30 mins before it shakes itself to death with all that crank runout and runs a bearing...

I was thinking a much deeper root pass on each section

surprised he didn't just poop on it and say it was finished

I insist and affirm that an infinite number of metals, when heated, change their quenching properties (in this case) and then do not function properly. They love heat and unceremonious pounding, and in many specific parts this causes serious unseen damage that accelerates breakage and wear.

микрометр смотрю они не знают что это

No soft jaws, No 4 jaw, No dial Indicator , no way protection , No bearing tolerances , This must be for entertainment only . 😂

Я хоть и не токарь, но заметил, что бабка не отцентрована.

You notice he upped the bearing clearance..Need to, to take care pf the run out..

I enjoyed the video but I have serious doubts about the result...

Arkadaş sence oldumu yani ,balansı almadın, kaynak az ve rutil elektrot ,ayrıca kranşaft yuksek karbonlu çeliktir kisa zamanda tekrar kırılacaktir.

@user-sq9ws9og4k

2 ай бұрын

Wenn's nur solange hält bis der Meister hat sein Geld 😂

Moi je pense qu'il était possible de percer un trou dans chaque pièce pour y mettre un axe pour rétablir la stabilité de la pièce puis ressoudé par dessus 😅

Колено в металл ,токаря на опыты сдать

1:45 didn’t chase the threads ? 21:47

Good work 👍

La idea esta buena pero la soldada muy mala solo soldaste por arriba😮 eso se parte enseguida no aguanta

@litoprat7959

2 ай бұрын

Un asco el trabajo

@emanuelperez3090

2 ай бұрын

@@litoprat7959 imagínate se rompió estando todo el fierro masó y el loco lo suelda solo por arriba jajajaja

@litoprat7959

2 ай бұрын

Y encima pule el muñonn de bancada con una amoladora Son un desastre

Пздц на 3.10. Я всю жизнь охлаждаю детали а они их греют😅

Шейку наждачкой крупной? И в конце зачем лишний раз было колотить по шестерни, можно было на горячую посадить.

why did he heat heat cast iron? I cringed when I saw the torch near the chuck. , He has .0002 run out that journal.

даже без микрометра, визуально, наблюдается биение вала. это не ремонт

єто пиздец за такую работу надо Нобелвскую премию давать

Does he know what an indicator or micrometer is?? Then only weld 20% of the material without preheating 😱 very crude repair 👎👎👎

Keep the revs below 500rpm and it should be fine🤣🤣

At least someone has a very nice and shiney doorstop now. Totally F*****d up ex crankshaft. Total load of butchers. That poor lathe with welding and grinding and gas torch work being done on it.

Cruza la calle en moto😂

Fortunately this part is not for a car. single cylinder engine, agricultural vehicle or something I think.

Главное чтобы блестело

😭 - и эту хрень , продадут за оригинал !!!

👍👍👍

Устал смеятся над работой этого мастера.

All fixed, two dolla please.

Интересно, что это за коленвал на один цилиндр?

@pavelferos2803

2 ай бұрын

Обычный коленвал от одноцилиндрового дизеля.....

@user-ym8kh3td7r

2 ай бұрын

Мопедный

@user-yn3hu9to1r

2 ай бұрын

Одноцилиндровый на фуре? ​@@pavelferos2803

Биение? Нет, не слышал)!

Про отпуск металла, знает, про закалку нет.