Rebuilding Broken Drive Shaft | How to Repair Wrecked Drive Shaft | Fixing Truck Drive Shaft
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- Опубликовано: 2 янв 2022
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Rebuilding Broken Drive Shaft | How to Repair Wrecked Drive Shaft | Fixing Truck Drive Shaft
Complete process of repairing broken drive shaft. In this video you can learn how to repair drive shaft. Drive shaft repairing is a technique by talented mechanic to repair drive shaft.
#driveshaftrepairing
#rebuildingdriveshaft
#fixdriveshaft
#wonderingskills 
Авто/Мото
Videos like this make me feel so lucky that I live in the west
UNFORTUNATELY THEY SCREW UP TOO.
Interesting piece of work for this repair. My only real question is how well will this hold together, sometimes welding is not the best answer. Interesting video. 👍😁🇺🇸
Some observations.
1. That universal joint failed end was working at a too-high angle, stressing that joint and the welding failed.
2. The sliding coupling seems to be worn out and so the overall Cardan shaft was not that straight.
3. The hammer used at 0:29 is proportional/ relatively too small!
4. At 1:17 the cross looks as dry as a bone and would not be surprised that the needle bearings were jammed.
5. At 1:23, the use of the scribing block without chalk marking at the chuck end was lacking accuracy and the other free end should have been centered and not just eyed! ,
6. Those tool-holding bolts at 2:04 on the tool post were raped and abused in the past and no pity was shown on them!
7. At 2:31, using extra leverage on the tool holding bolts was not necessary.
8. At 1:27 using extra leverage on the four jaw chuck was not necessary.
9. At 2:30 using such brute force on the tool post was not necessary.
10. At 3:07, the good bit left in the chuck was reasonably centered but could be better.
11 At 3: 30 the reason why the chamfer was taken off, I do not know.
12. At 4:04 there was no need to use extra leverage on the three-jaw chuck.
13. At 4: 32 tolerance in the fitting of the insert to line up the new pipe with the old pipe made me cry.
14. The loose-fitting at 5:18 still made me cry as I somehow predicted how they were packing it up to make it fit.
15. The fitting at 5:21 would need supernatural intervention to make the aligning work as expected in a Cardan shaft.
16. At 5: 49 welding a dollop of hot steel inside the Cardan shaft will make the coupler tight but not concentric!
17. At 5:49 I presume that pipe was used to ground the workpiece to stop the electric current going through the chuck bearings which does not do them any good, but my opinion is that that pipe from the toolpost to the workpiece will not suffice to help those bearing suffer the consequences of heavy electric current goiung through them!
18. Welding the inner part and then giving it a cut to prepare the surface did not make it concentric! Hence both static and dynamic unbalance will result.
19. At 9:25 I do not see the grounding pipe as he welds so all that current to ground is going through the bearing of the lathe and is not doing them any good.
20 At 9:50 rotating the workpiece held in the chuck with no apparent ground will ensure that other locations in the bearing surfaces will be roughed up a little.
21 At 11:16, passing that heavy hammer and using it to square the U part of the universal joint with the added extension and eyeing the result is may have straightened the three parts but the added weight inside did not move to be concentric for a balance Cardan shaft.
22 Again at 11:32 I see no ground wire attached while welding and at 11:38 the use of that extension to undo the tool and use the pipe as a ground connection is inadvisable.
23, At 12:49 The scene shows that the welding has both undercut and overlaps and inclusions while the heat-affected zones is wider on the pipes when compared with the U part of the universal joint,
I am sure that thee young gentlemen mean well, I congratulate them for their efforts, but perhaps they need to use their initiative to sway away from the local culture, especially in the safety precautions they take. Please look after yourselves for the sake of your own families.
Полностью с вами согласен
@@user-ug9un6fd1u Thank you for your support.
How about the color 😂
WOW for the effort underligning all of the problems and teaching us!
Thanks.
Just FYI, I watched this gentleman use this lathe a number of times about 6 months ago. At the time the lathe appeared to be brand new, but about half of the toolpost bolts were already in the current shape. It seems that since then he has bent and mushroomed all of them. I suspect it is a Chinese lathe, and the metal used for the bolts was the equivalent of rubber. I see other Pakistanis cranking on the bolts on their toolposts the same way, but they haven't destroyed the bolts in the process. He could easily replace those bolts with scrap fine-thread screws that he finds lying around on the ground from disassembled broken parts. I watched a video not long ago by an Indonesian lathe operator that took some old wheel studs and turned them down into new toolpost bolts for his lathe. This guy could do the same.
Six months ago he was welding the same way in the chuck; all Pakistani truck repair people do this. Since then he has learned to put a board over the ways to not screw them up too badly. This is the first time I've seen him use a rod to the toolpost for ground. I think he did that because he wasn't getting consistent conduction thru what is left of the headstock bearings.
One of his techniques has improved though. I didn't see him open the top of the lathe and reach into the drive belt compartment with the motor running. Six months ago any time he needed to change speeds he would turn on the motor, release the belt tensioner, and then reach into the belt compartment to move the belt from one pully to another. He also seems to now be buttoning his shirt cuffs. When he was adjusting the belt with the motor running he had them flapping loose.
I have been using a lathe for over 40 yrs and I have never seen tool post bolts in that state. It seems that they use an extension bar to tighten everything down. It would appear that if they don't hit something with a hammer then they use an extension bar to tighten. Number 1 tool in Pakistan is a hammer, No. 2 tool is a bigger hammer, No. 3 is an even bigger hammer. No 4 is an `extension bar, No 5 is a bigger extension bar.......................An the tool is more than likely blunt.
🙂
must be soft tool holder bolts my GISHOUL would not mushroom, but we never load it with over 80 ft-lbs.
and welding above the bed?
I was a machinist for 25 yrs, in some very terrible shops stuffed with a lot of older equipment, the bolts will just start doing that with repeated use, and if they are hard to replace, they just get worse, its not necessarily because of the cheater pipe, (remember these dudes are like 90lbs soaking wet and like 5'2" a little extra leverage is probably needed)
As for hammers, seen plenty of "machinists" use hard faced hammers to "adjust" everything from Kurt vices to CNC spindle alignment... if its the tool you have, then use the tool you have (difference is the US "machinists" had the right tools at hand, just too fecking stupid to use them... hence why I'm happier cutting trees down now)
@@wonderingskills1 Don't forget the magic Rags and dirty solvent .
Как обычно читать комментарии интереснее чем само видео
Bahut behtar
That lathe looks pretty new. And like a pretty nice machine. But it won't be for long. Those screws on that tool post, all mushroomed and bent. And grounding the welder through the bearings. I wonder how long before the bearings start getting crunchy feeling. And how long will they run the lathe with bad bearings. I have watched many of these types of videos out of Pakistan and India and have been amazed by what they make with so little. And amazed at the lack of even rudimentary safety precautions. Like pouring cast iron with bare feet. But these guys really take the cake. Their new and expensive lathe will be junk quite soon. That's too bad.
no not grounding through bearings. they put a rod or pipe between tool post and the pipe when welding. then later use the dead center to center and push the parts . no rolling elements in the dead center
They take care of their stuff. Imagine one of them asked you to use your truck? That's a no. There is many videos of them repairing something critical. Definition of insanity doing same thing and expecting different results. We understand it, they don't.
Perfectly balanced I am sure!
OMG 🤓
Never seen tool abuse taken to this level. Pretty nice lathe, where someone has been completely borking the tool holder. Have those bolts been tightened to the point of turning elephant feet ?
I'm sure the truck driver will enjoy every single mile of drive on that forever vibrating drive shaft.
Oui c'est incroyable.🤯
@from the dark side of the moon you poor sad repressed mummy's-boy bastard
Serviço de mestre , parabéns a toda equipe.
Wow, he has a newer lathe too. Love the bolts on the tool holder...
It looks like at least part of the they’re grounding the welder through rolling elements, a definite no-no. Also, we didn’t see the shaft dynamically balanced. It’s going to beat the u-joints out of it.
no . they stick the rod or pipe in. then later they use a dead center which has no rolling elements.
I sure hope they clean it up before they send it out, the shop does. Like the inner sleeve adds stability to the repair. Thanks for sharing. 😁👍🇺🇸
Pakistani,... You can fix everything!
Good job!
Thank You
very good.
Thanks
Never seen machinists so unskilled before zero knowledge, I’d be surprised if the prop shaft lasts a week. Welding work was a crap as the machining work.
Главное самому верить в такой ремонт☝️😅
Токаря всего мира (кроме индусов и арабов) плачут горькими слезами, смотря на это варварство
Ficou perfeito 👏👏👏
Torno limpo 💎 parabéns 👍👍
Whoever gets this repair part really got the shaft. 😂
I’m gonna import welding hoods to this part of the world. No one there has ever seen such a device. I’ll make my fortune 😂
How could that shaft possibly fail. 15 minutes warranty
You can paint a old boat but its still going to be an old boat.
It's Old boat but you still can drive it
100% admire their work ethic. Dismayed at the absence of unsafe products they produce. Understand why.
Что у них с резцодержателем 😳😳😳😳🤔 Кувалдои били .😁😁😁
Трубой удлиняют ключ - вот и резалт такой. И ногами поди в станину упирается при этом.
@@user-xz1pm2xw1r Да уж ,,😳😳😳😳😳
Ну по детали, зажатой в патроне бьют, может и резцодержателю досталось.
и так пойдёт
Похоже пару раз резец вырывало.
شغل جميل اعتماد على انفسهم بلد فقير وشغالين الله يقويهم والله يفرجها على كل مسلم
Comeback next week we will do it again
Muito bom gostei do vídeo legal .. BR.. Brasillll 😄😴😲😃😋🇧🇷🇧🇷🇧🇷🇧🇷🇧🇷🇧🇷
They clean the lathe bed after every job ,the tool post speaks for itself
very nice work
Good work
Останавливать патрон руками- бесценно)))))
Как и электрод)
That is one messed up tool post with equally messed up bits.
Porque não deu acabamento na peça? Ficou devendo essa amigo gosto muito dos seus trabalhos, mas falhou nessa, abraço,
Was expecting perfectly machined sleeving and v-grooving for weld, and then a levelling cut
Lol.
After all that work making a sleeve they just end up butt welding it with no v Groove ? The whole thing was pointless? The only thing holding that tube together is a surface weld ?
@@swedesspeedshop2518 exactly
It's okay they still need more content for more videos,
вот это жизнь под санкциями. Все на коленях в грязи: коленвалы, форсунки, насосы, маховики, раздатки. Металлическая счетка стерта до нуля, биение проверяем в станке проволокой, протираем черной тряпкой, в которой масла и песка больше чем хлопка. Запчастей нет, зато ядерная программа есть. Человек подстраивается под все ради выживания. А оно нужно - этакое выживание?
Good effort sir
💙
После такого количества сварки кардан будет мягкий,как консервная банка... Нет?
Да он и так-то не сильно жёсткий
Какой у мастера причесон крутой 🧑
Мне вообще нравятся чёрные волосы 💥
It’s all about a quick job and get the MONEY. This is the only motivator in this environment. Just sayin!!!
ماشاء الله مهارات عالية
Jazak Allah
Indiano não usa bancada ?
Porque fazem tudo no chão?
Agachados?
Não prejudica o joelho?
The bolts in the tool holder 😂
Of all the videos I have seen of Pakistani people working wonders with almost nothing, this is the first where I have seen inept cowboys butchering both the work & their equipment. They, in my opinion, are not going to be trading for long.
Yes sir you are correct to say that ! Total Hack Job !!
👍👍👍!!!
👎👎👎👎👎👎👎!!!!!!
Новые токори в новом году!)))
У тех пальцы закончились.
Станок не старый а болты загнутые - учатся.
Muy bueno👏👏👏👏
Mmmm... SE VE Qué hay Empeñó En Trabajar,??? Pero Lo Qué No VEO Bien,!! Es Qué no Husan Protección PARA,!! Quidar los 👁️👁️👀de TODOS MODOS SALUDOS D CALIFORNIA,👁️😁
Зачем они электроды гнут??
Наверное потому что они длинные, вероятнее всего тоже самодельные!И варить на метр от детали неудобно поэтому гнут чтобы ближе было варить
В изгибе вся сила сварки.
Сверху пока он длинный неудобно варить прямым.
Tornear um peça cortante e manusear sem as luva sem os óculos tudo errado.
Лайк. Молодцы!
Good
Thanks
Етот кардан долго ходить не будет,после такого количесва сварки,он будет мягкий как пластилин!
Главное отбалансирован
Ох, уж эти ребята))
No weld prep at all. What Root??
Bandaid welding will not last!!
THEY WELD WITH 7018 RODS. THE ONLY THING THAT BOTHERS ME. IS IF YOU DON'T CLEAN YOUR WORK ,REALLY CLEAN. ANY FLUX LEFT INSIDE. NOW THAT WILL WEAKIN THE WELD. WIRE WHEEL BRUSH , WIRE BRUSH. HAS TO BE CLEANED VERY GOOD, OR IT WILL FAIL.
Так хотелось "токарю" по шее дать....Сварка на станке, да еще минус через направляющие станка!!!!!
Ну и естественно - балансировка - а что это такое?
Сперва он пытался через подшипники шпинделя ток пустить, какая балансировка вы очём, не факт что вилочки в одной плоскости будут.
@@griggs310 Там похоже остатки краски на трубе ток на кулачки не пускали......
@@paulfox7401 Согласен с вами, точно краска.
9:19 it’s a shame they don’t own the perfect machine for creating a bevel for the weld instead of just a straight butt joint.
They removed the bevel from both pieces to butt weld them. How many times did the young guy weld that the inner tube and then machine it to small.
@@alanegan8909 I lost count! They have the capabilities and machinery to do a great job they just need a little guidance.
@@sjv6598 no, they really dont have the capability. They have the machinery.
@from the dark side of the moon was told they supposedly have “1095” steel rod. Of course, the person who spoke of the matter might have been an unwitting liar - as in he may have been “sold.”
If it was anywhere close to 1095, then forge and machine the blanks to size, then harden them. 1095 can be oil quenched readily - it’s similar to W1. (I’ve done it)
What's that old hot rodder saying - custom by crash?
man u working really danger way where is the safty glass ?
Pakai t.shirt lah bos.. dengan seluar jeans.. selekeh pakai macam ni buat kerja
Thiên đường độ chế là đây 🤣
very good
Thanks
Очень хорошо! 👍🙂
Да не очень. Вроде и правильно, но швы не разделаны, особенно когда крестовину приваривал. хотя фаску делал на станке, мог бы и там точнуть, но шов красивый, снаружи и не понять. Может конечно от души проварил, на то и надежда. Смотрю этих парней - красавцы конечно! Из кизяка и палок всё, конкретно в этом видосе на заточку резцов и расплёсканные болты разцедержки больно смотреть - трубой же затягивает, но делают же работу! Респект!
@@user-xz1pm2xw1r вот есть токарный станок, ну освежи болты в резцедержку или сделай новые. Но нет, что-то им мешает
@@user-mm8vf6dj8o Они специально расклёпаны, чтобы не потерять 😁
The steel in the driveshaft is not made of any waterpipe steel. This material going to be to soft.
Driveshaft tubing is usually ERW mild steel, sized for the job, and to resist whirling failures. These guys appear to know little about metalurgy and materials, which isn't any surprise. This is common throughout these regions, the basic thing seems to be, if it looks like steel, its OK. Repairs like this would not be carried like in this anywhere here in Australia, the whole tube would have been replaced, its actually illegal to have a weld anywhere on a driveshaft other than at the ends. Welding above the lathe bed, and making the earth circuit through the head bearings, is going to ruin your lathe as well. Speaking of lathes, Ive never seen a lathe that size belt driven, they must be locally made.
@@jeffsewell412 actually that is a original drive shaft, blame the truck company that made the drive shaft.
@@atlasflame2510 Yes I know that, no doubt its failed due to extreme overload that these people regularly do. It appears they purchase second hand worn out trucks from japan and China, fit an extra axle or two, then fit huge springs (which only serve to support the 200% overload) then drive them on awful roads, QED, failure. Thankfully it appears they rarely go over 30km/h. The original design of the truck was fine for the service it was intended for, but 200% overload will kill anything.
Stay tuned for the next chapter.
@@mjm7187 same busted driveshaft, same location busted lol
اللہ آپ کی مدد
Like
Thank goodness we have duck tape.
Excelent
💔
tay nghề rất cao
дичь полная, даже я далекий от железа это понимаю. лан....если бы подогнали нижнее кольцо строго в натяг. н@}{er@! можно же присрать сваркай, потом подгонять несколько раз опять же присерая сваркай. фаску даже не сняли с труб, так и присрали. лан.....будем думать что проварил. а потом это все на скорости }{Yяк....при торможении двигателем и отпало))))) и тормоза пропали, этож сколько смертей. отдельно надо отметить токарей от бога! это ж до чего надо довести так станок? мало того все прижимные болты кривые так еще люфты какие, резец волной шкрябает, не режет а шкрябает! Отдельно лайк за заточку резца.
🇧🇷👏👏👏👏🙏
❤️🩹
i have never seen anyone of these types of shops have a proper dial indicator for truing their parts. that pointer relies on eyesight .
my question is who funded all this equipment and "training"? that equipment looks pretty new in a pretty old part of the city/town. nothing is for free sooo.....
They bought from their legal money.
Molana good welder
💙
What about the bearings in the lathe?
Speed
I think the guy down the street made the tool holder bolts in his back yard using scrap...
Бедность это не порок !
Spinning the truck wheels and htting dry pavement.
That’s a good repair 👍👍👍
Thanks for watching
What a lousy repair job
That's not workmanship, it's pure savagery!!!
On big rigs we'd replace this driveshaft versus repair.. Big rig drive shafts take on a lot of stress especially when approaching 80k pounds or more.. If this was a small car I'd definitely agree with repair
Its truck drive shaft
@@wonderingskills1 I know, reread my post... I can already tell you don't understand what I was saying
🇵🇰👍🇮🇶
💞
Глаза-аааа😵
My legs are hurting just thinking of spending that much time crouched like that.
У одного "мастера" не получилось, "другого" позвали.
Как можно было угандошить так резцедержатель!???
el ayudante se cubre de las chispas con la mano desnuda XD
Mmm, sketchy stuff.. They don't make a root for welding = hoping for the best. Considering the fact they always overload the trucks, it will be back soon in the shop if it doesn't roll down some cliff.. So, next is the misuse of bolts and tool holder = to cry for.. There is absolutely no need to use that excessive force to bend and mushroom the screws.. Also I'm amazed no one of them gets the sleeves caught in the chuck.. The toolpost also should have a stop-rotate pin that prevents it of free spinning on the central screw... Ya, very sketchy stuff, the worst is when they always use some extensions over extensions... Then the lathe ground when welding.. =( all the lathe will be soon covered in weld splatter... Let's not talk about safety in flip flops.. I can't stand those on in the shop where welding, forging and similar stuff is going on. Does anyone know why they throw anything they disassemble in the sandy dusty soil first?
Ммм как же балансировка? Грузики на кардане знаете ли не просто так
I never thought I would be suggesting a country needed more lawyers, but certainly they do there. Liability does not seem to be even a remote concept there. The next bus load of nuns that goes over a cliff has no recourse in law there.
If I only had an emoji of a bus load of nuns going off a cliff! 🤣😂
if that lasts half a year ill be shocked. an axel has as few parts as possible, to reduce possible failure points, these kids just added 3 failure points
Вот резцедержатель ушатан вхлам
malo ce da trese , ali valja
PS get a hairnet
Yo manejo un camion en USA, y no creo que esa reparacion a 65 o 70 millas x hora no produzca vibraciones, ,Yo no me arriesgaria,,,los respeto mucho,,,pero creo que en USA ,,MUY POCOS SE ATREVERIAN A HACER ESO
Я что-то ржу😂😂
Без согнутого электрода никуда
Ma grand mère soude mieux que ça !!!
safety glasses bhayio
😔