When you have nothing, you have nothing to lose. The driver who overloaded his rig and broke the pinion the first time, will snap this one the first time he pops the clutch.
Or Sooner. Making things "LOOK GOOD" IS NOT a repair . He could have saved doing the job Twice, by buying factory parts, and ran it for another 25 years.
Maybe or maybe not i fixed a pinion basically the same way for a piece of farm equipment it lasted about 5 years needed the part right away no one had it "fixed" it then got the factory part and waited for the fix to die factory part sat on shelf for 4 and half years.
@@stevecarlisle3323 I do,and I can tell you a quick repair will get him back on duty, like the prescriber wrote (is that the right word? I'm not english native), but to be honest: your right as well. So, the point is: do I have the possibility to use OEM parts or better Manufacturer part or do I have to rely on the bits I got back repaired. I often don't agree with the methods HOW they do it in these videos, but the do it and it lasts...well...quite a time... by saving a lot of money they don't have. So, to sum it up, you're both right. Let Karma make a decision
@@classicmoto2429 Well thanks for your input, but being a heavy duty mechanic and welder, for 4o years, and certified in both trades, my best guess is it may look good, but it will have no durability. If it makes you get out of a muck hole on the farm, then it would have some benifit.
@@nilos21k it is probably a cast iron pinion. Cast iron has a high enough graphite content that it essentially self lubricates as you cut it. A lot of the maching I do on cast iron cylinder heads is done dry for this reason. When a coolant or cutting lubricant is used, it sometimes makes it harder to cut it. The only downside to using nothing is you should definitely wear a respirator or dust mask, you do not want to breath in that cast iron dust.
It is painful to watch for Machinist, welders , mechanics and the engineer that designed it . Welding with it on an unprotected lathe was bad but the grinding process even worse. I doubt it broke when they torqued the pinion nut because they don't torque any thing. In that part of the world if it looks like it is fixed it is good enough. Lives are very cheap.
нууу... в ситуации когда на новую или хотя бы целую деталь рассчитывать не приходится.... лучше так, чем никак. Хотя конечно очевидно, что на долгую и надёжную работу рассчитывать не приходится. В лучшем случае потихоньку домой доехать.
@@panstakanski6116 ну так они не в джунглях амазонки живут, я много видел в их видосах новых запчастей, я просто не понимаю смысла платить за работу, которая по сути халтура🤷♂️🤷♂️🤷♂️.
Man where to start, first of center up you're tail stock 5:22 second, don't weld on your cutting lathe, you'll destroy the ways. Third, if you are going to ignore 2 then cover the ways and spin the part as slow as the lathe will turn as you weld it, do a continuous weld bead not a bunch of tiny tacks. Fourth don't grind at the lathe, again grinding dust= abrasive=destroyed ways&wiped out bearings
@ICE STATION ZEBRA ASSOCIATES l don't see any porosity in the weld. I think if he used the correct rod there is a good chance it will hold . I not see what you see . It's beveled correctly to my knowledge and mutipass welding what's not to like ? I'm not sure how the heat will affect the temper . I would love to know how long the repair lasted .
@ICE STATION ZEBRA ASSOCIATES I HAVE ALWAYS PUT MY GRINDER IN A BRACE" AND GUIDE IT WITH A HANDLE...IT JUST NEEDS TO FOLLOW THE GROVES THE BLADE IS ALREADY THIN ENOUGH..THE FRONT PART IS STILL DOING ALL THE WORK..HE JUST NEED TO PUT THEM BACK TOGETHER"
As bad as this probably is, still have to respect the time and effort these mechanics put into repairs. It’s definitely not the right way. But probably on that side of the world it’s *the* option they have to take.
3:17 Look at the amazing rigidity of the lathe. It looks it have incredible precision of at least ±1 mm or even more. The machine matches the technology perfectly.
I don't think runout will be a problem. The taper that squares the yoke up was on the "good" side. As far as the splines go, they were already toast so it doesn't hurt to try. I repaired a blow out in between cylinders on an engine block of a turbo car with a nickel rod, a 4 1/2" grinder and a utility blade as a straight edge while it was still in the car. People were protesting so loudly that you would have thought I was killing puppies. It worked out great. You roll the dice and sometimes you hit your number.
I'd love to see a follow up on how long this lasted... Maybe the driver just needed to get back home to a proper spare part, like the captain that flew a 747 from the USA back to Heathrow UK with a blown engine because the US workshops wanted too much to replace it. A bit sketchy setting off on 3 engines across the Atlantic on purpose, the busted Rolls Royce engine was testing how long an engine would last on the 747 before failure, more than 36,000 hours without overhaul which is quite impressive. I've welded a few forged steel parts by preheating and laying down some root welds with a domestic 120amp MIG and they're still working 25 years later! I once did a temporary fix on a diesel injection pump piston by gluing with JB Weld, the guide block back onto it, while I waited for a new one. That was in 1992 and it's still working, god only knows how as it hammers up and down and gets quite hot in service, which I would have thought would melt the glue. Sometimes rough repairs can work, other times not!
Um belo trabalho mas nao aguenta e assim que fizer força quebra novamente e um bom quebra-galho até quebrar de novo...mas como disse se nao tiver peça de reposição esse serviço ajuda ...mas vai quebrar novamente!!! Fato!
When I clicked on this video, I was hoping it'd be something out of the ordinary with the strength to match. Beautiful...maybe...good enough...if you use it for the battery powered cars for kids, I reckon it'll last forever 😄
Given what the machinist had to work with and perhaps unavailability of finding a new part, it looks like he did a pretty good job repairing the pinion. However, the proof will be in the pudding on how long it lasts and whether there are some alignment issues that break the part again.
Nicely done... predetermined breaking point. But it is not fair to judge from our part of the world. They probably have to do it more often for lack of spare parts (and money). I would also be interested to know how long it lasts.
When they will start TIG welding on those repairs. There is so much integration of deposits in this weld that may survive going out from the parking area. And how expensive are center drills?
That wasn't anything close to tig welding. They where stick welding which dumped a ton of heat onto the part. It will snap off again in the same place.
wow, alot of harsh comments on here. 30 yr wandering Millwright here. These guys, and alot of the third world are often very fast and seriously skilled, they have very little in the way of tools and equipment but they're not fools. This shaft may be being used in a completely different application. I've seen lots of very craftily-built equipment, particularly in poorer countries, for all sorts of purposes. Machines built from old salvaged transmissions, axles, diff's.....in fact they may be fixing it after its been scrapped for exactly the reasons you all point out below! I doubt very much these guys would waste their time and precious resources if they thought it was doomed to fail....this is not their first rodeo! I've got alot of respect for these guys, and in general "Bush Mechanics" everywhere!!
You have to work with what you have! We can criticize the process and we will all be spot on based on our experience but if all we had were those same exact tools you cant lie when I say we would do the same. Granted we might have maybe drilled and tapped both sides and cut a bolt and use as all thread to join the two and then weld but regardless we would still figured out some way to get'er done with what we have! If I didn't have any experience id be in awe but worst case scenario I would have enjoyed being a part of that process to help the situation.
This ‘repair’ is nothing but garbage. Weld will not hold that together long. Why do you think it broke in the first place? All the heat treating will be gone. Why didnt the cheap bastards just get another gear set?
@@doughawley8101 cheap? Or broke? Or temp till part comes? Or maybe parts are hard to come by? Who knows. Our way of life and theirs is NOT the same. I've cringed at every one of these videos I've seen. We know it won't last. But if you had nothing in the world but a worn out lathe and a stick welder, and had to deliver some product to put food on the table in an overpopulated, poor country, and that truck was your lifeblood, what would you do? It's ugly and dirty and out of spec and out of temper, but if it feeds his family, he doesn't care. Thank you God for America and our lives of privilege. And good parts 😉 And just FYI, I'm a disabled American veteran. I'm not picking, poking, or trying to start anything with anyone. I'm just saying try to look through a different lense. I'm sure they would prefer to go to a reputable shop, install new parts and have a warranty. More proof that we are the lucky ones and should be grateful for everything we have. I hope everyone that reads my comment is in good health and has a wonderful day!
I'm from United states I'm a diesel mechanic I support this kind of work reason being right now with world problems many many truck parts are unavailable out of stock discontinued or other problems. As Americans we are very spoiled either having plenty of money to buy parts new some others cannot do or the ability to get or find new parts but now that is becoming hard to do I hope the repairs they do like this at least gets them few more loads
Leaning over a spinning lathe chuck wearing loose clothing is a good way to become maimed or dead. This video is an example of how not to do this job. Fitting a new or second hand part is the way to go.
No OSHA, no problem. There are 100 or more waiting for his demise to give it a try. Then they will migrate here selling themselves as highly skill machinists willing to work for one-tenth of what American, well trained machinists command in compensation. Sadly, shops will hire them and risk it until the first customer service incident. The shop owner will pocket the difference, and change the name of the company and strike out again. Isn't globalism grand? Sadly some of these people have the ego to say they are better at machining when they cannot even understand what heat does to metal and why heat treating is required. Get used to this solution because in today's world, reputable manufacturing has fallen of (thanks bean counters) and replaced with just in time mass production as cheap as possible.
No stress risers in that "repair". And excellent heat treatment after the "repair". I'm beginning to think these videos are just an elaborate joke being pulled on the rest of the world.
I have the same doubt as you . Maybe the truck will run fine until it goes up a hill ? If I was stranded and there was no other option I would try this , If it breaks it might take the driveshaft with it ! I would like to know if the repair is still in service ?
The method of welding it back together can work. The problem is you need much different welding techniques and specific materials. Their equipment was really in poor condition and they didn't weld it properly. Then he just fucked the piece with the grinder. Should have been on a mill for that. pinions are very important and can't have any play in them. He'd be lucky if he made it a mile with that in his truck.
I wish they had shown the installation of the repaired part. Watching them set the pinion preload and checking the mating of the gears to the crown wheel would have been entertaining.
I seriously doubt they go through that much trouble, the truck that is for is not meant to last due to the nature of the roads they tend to drive on. Wooden body on a cheap metal frame.
Since this is used in a high torque application this job is going to bite the owner big time in the end as it's going to break right when they need it the most. On something like this you just have to get the part made or buy a new one, just to have peace of mind.
Probably doesn't matter if the splined shaft winds up slightly shorter since they probably use shims to fit the gears together. Main thing is to maintain the two welded parts are parallel. I suggest safety glasses, even though nature gave us a spare eye. Interesting how they make a grinder work since presumably don't have a horizontal milling machine and correct cutting tool for the splines. Cost of repair $15? Biggest concern is if this is the input pinion on the differential of a semi-truck, as they must use engine-braking to control downhill speed. If it snaps, the truck could runaway on a steep road.
Welding on the lathe will weld the bearings on the lathe. I had a farmer welding parts on his tractor out in the field and found out later he had bearings welded to each other.
Its not a matter of "probably", its definitely going to break the first time any torque is applied to the driveline. They spent alot of time repairing a paper weight.i certainly wouldn't use that pinion in anything i own.
I'm very interested to know how long the repair has lasted . And what rod was used. I wonder how the heat affected the tempering ? And was it induction hardened ?
@@MrHitchikerOz then in your opinion it's not even good enough for a emergency repair . I've welded drive shafts that worked great and had no issues , but it's not really comparing apples for apples .
Обороты на металле - огонь, резцы либо тупые, либо из мягкого железа, но болгарка вообще добила, хотя если посмотреть на его мастерскую, за неимением инструмента вполне сойдёт и болгарка. Токарю не хватает знаний металлообработки и инструмента, но он молодец.
I would imagine if it broke 10 metres down the road they would be out of business pretty quickly. These kind of repair shops would rely on word of mouth and quality of repair. But I do agree with all the comments on hardness and toughness of the final repair. Without a doubt the strength is dramatically compromised. They probably advise to replace with a new part ASAP.
Most of the comments seem to think that the weld won't hold , but in reality not all of the people who commented are welders and out of the ones that are, probably only a small percentage are expert at welding cast , so I feel that the majority aren't quilafied to make the assessment in the first place , I do see a trail of mistakes made while making the repair that makes me loose trust , but I must give respect for complexity of the repair . Im sure they make many repairs that have been a great help to society and deserve respect for that . When it comes to welding, their are many different processes and disciplines to master . Boilmakers , jewelery welders ,under water welders ECT.
Will those welding rods' steel match the endurance of High Chrome Steel user in the pinion....! The question is not about perfection, it's about endurance...
Yeah this is BS there's 3 possibilities here either they are really, really stupid. They are getting ready to fk someone selling the truck. Or this is just for the video.
I think the problem is their steel. You see how easy that drill bit went in there? Have you ever tried to drill a pinion shaft? It doesn't happen like that.
Un buen resultado, el señor trabaja muy bien, pero con una carencia total de medidas higiénicas y de seguridad. Sin guantes, sin calzado ni vestimenta apropiados, respirando humos y gases nocivos, la cortadora radial sin mango ni protector... Una retahíla de atentados a la salud. Hay mucho que hacer todavía.
@@jacobclark89 Jajaja jajaja. Ahora mismo estoy disfrutando del mar y del sol del Mediterráneo. Mis niveles de stress están en -64. No te preocupes que mi corazón es feliz. Solo expuse lo que vi, carencia total de medidas de seguridad. Un ejemplo de lo que no debe hacerse.
