All the people on here calling it junk or just throw it away need to remember that in some places it’s not as easy as going to store getting another one. You gotta do what you gotta do sometimes to get a job done. Very interesting video and thank you for posting it.
@@afnDavidI think he is smart enough to see that and polish it up besides it might have bearings on it so then it wouldn’t be that critical. Just saying 😮😮😮😮
The guy that put the trash comment on here, what because you're not capable !! Anybody able to do this repair wouldn't even think of leaving the crank rusty where the bearings fit. But that's not the job he was asked to do .. 😮
Opinions are like A-holes, everyone has one. But I tip my hat to these guys from India, Arab countries and Cuba. They figure out how to fix and repair things, and it actually works. So much for arrogant western engineering. We are spoiled, we just replace everything. Everything is thrown out, or sometimes recycled. But other humble countries don't have it that good. I will take humility over arrogance any day...
My thought too... let this guy loose on better machinery and there's not much he could not accomplish. Engineers like him used to be in every small town in the Western world 100 years ago, but most are just spare parts fitters these days. This guy is a Machinist of the first order.... top chap...
Skilled lathe work, kudos! A lot of these videos (like the sand casting videos) show some very rough work but anyone with a modicum of practice can see that this man is skilled.
Скорей всего это коленвал дизельного мотоблока или в роде того, скорей всего из за износа двигателя изменился угол впрыска из за чего возникают ударные нагрузки в противоположную сторону вращения маховика со времинем это вызывает усталость метала и трещины. Такой ремонт не поможет так как нагрузки от маховика очень большые особенно если не настроить впрыск. Но судя из состояния он уже давно где то лежал ы все это было только ради видео.
The original crankshaft is made of a special alloy steel, heat treated to withstand the forces and torque generated by the engine at work and under load. The donor piece most probably was made of untreated mild steel, not exactly the material you want in a crankshaft. Also the bolt used to secure the donor to the original crankshaft body may well work itself lose in service with catastrophic results. Countersinking and threading the original body so as to accept the donor has further weakened the original shaft. Most importantly a crankshaft is a high-precision piece, very accurately dynamically balanced, which acts as a complete unit and which cannot be messed with or patched up or repaired when it fails. Having said that there are circumstances when one has to make do with what one has, and as such, the skills and dedication demonstrated by this technician are admirable.
Amazingly skilled use of some very basic machinery. If the engine to which that crankshaft belongs is fairly low stressed, and I would posit that it is, this repair should give good service. Spare parts in some places are just not possible, or way too expensive, so the continued service of equipment depends on the ingenuity of machinists like this chap. Well done sir, great job.
My only concerns are that I hope they took the crank rotation into account when cutting the threads and I hope they used a high strength bolt as their set screw to secure it. Also did they make sure the crank after repair was properly balanced still? Other than that I think it shows some good ingenuity being able to repair without welding to repair. The machinist seems to really know what he is doing considering he didn't use a CNC machine. You do what you have to depending on where you live and what you have available to you. Overall, very impressive work. I'd use that crank for as long as I could before buying a new one if a new one is even available depending on what it came out of. I enjoyed watching this video.
That type of repair will probably work just fine on what appears to be a single piston engine, the methods and workplace hygiene of these places may at times be questionable, but no one can dismiss the work ethics !. 👍👌
It’s not a waste of time if you can’t get another one or can’t afford it, that’s why they do this in their country, it works and that’s all that matters
As a turner... reading some comments of the so-called experts is real entertainment. All shafts are mild steel. Machined, hardened if needed, and polished to size. This lathe has dails and gears. And oh yeah, this video was made to show his skill. That crank will not work again, the off-set on that center will rip any case apart, and the big end journal is shod. Just to get a bit technical. And oh yeah, I do work in Saudi... those Middle East countries' comments are hilarious. They won't buy a new crank here... they'll probably upgrade the whole shop if the compressor fails. It's the "Foreigner shops" (Yemen, Sudan, Pakistan) owned shops that struggle, Saudi owned shops have great equipment. Properly trained artisans are the issue... here.
Probably okay. I hope they didn’t show when they reefed down to tighten the threads , and locktite? What is the torque of?32 mm 2 ? Mm pitch thread into cast ?
This guy didn't use a dial indicator to check for run out once. and only used calipers to check proper measurement. and that was some extremely fast thread cutting. that is something that a person can't do without some time under their belt.
Ha hecho una cantidad de trabajo bestial en una pieza de fundición que debe soportar unas fuerzas brutales, al primer giro del cigueñal se va a partir. Perder el tiempo a nivel dios.
Did anyone notice the new keyway was was cut into the wrong place? So, the flywheel timing will be about 45 degrees off now. Advanced I believe. Assuming, ignition runs off the flywheel.
I wish they would have shown the engine back together and running. That would shut up all the haters. I think it will be fine in a small engine. Those are low rpm , low compression machines that just chug along.
So, you measure the internal thread minor diameter to determine the external thread major diameter? All with vernier calipers? Horse shoes and hand grenades!
The bigend is junk the bearing surfaces are junk, has this just been pulled out out of a bin, the bigend alone needs 3mm taken off just to get rid of all the rust and pits. Look at all the bloody dings in the bearing surfaces 😂
Ok...I've defended these guys on fixing axles, gears but draw the line at Crankshaft...things cant be that bad to where you can't replace it with new one!
I suspect many of these videos are not legitmate "repairs", but rather for the purpose of getting people like us to watch the video, since they earn money based on viewership. This crank with a bad journal in an example of a scrape part used just to make a video.
All the people on here calling it junk or just throw it away need to remember that in some places it’s not as easy as going to store getting another one. You gotta do what you gotta do sometimes to get a job done. Very interesting video and thank you for posting it.
The bearing surfaces and journal are very badly rusted and pitted. It will seize up after 30 seconds of use then the flywheel will come spinng off.
@@afnDavidI think he is smart enough to see that and polish it up besides it might have bearings on it so then it wouldn’t be that critical. Just saying 😮😮😮😮
The guy that put the trash comment on here, what because you're not capable !! Anybody able to do this repair wouldn't even think of leaving the crank rusty where the bearings fit. But that's not the job he was asked to do .. 😮
We all may end up doing things just like this in today's political atmosphere? I'm glad I've kept all my tools.
@ I’m glad u did also.👍🏻
Excellent piece of engineering. Absolutely brilliant.
Old school still works just fine. Very Nice work !!
Opinions are like A-holes, everyone has one. But I tip my hat to these guys from India, Arab countries and Cuba. They figure out how to fix and repair things, and it actually works. So much for arrogant western engineering. We are spoiled, we just replace everything. Everything is thrown out, or sometimes recycled. But other humble countries don't have it that good. I will take humility over arrogance any day...
But it's not balanced any longer 😂
From Mallorca, from a lathe and mill man, congratulatios. Your work is good. You deserve better tools my friend. Salam Aleikum
My thought too... let this guy loose on better machinery and there's not much he could not accomplish. Engineers like him used to be in every small town in the Western world 100 years ago, but most are just spare parts fitters these days. This guy is a Machinist of the first order.... top chap...
Good work and good setup, especially with the portable drill to mill a keyway. Cheers and well filmed.
Getting those thread dimensions precise without CNC takes some serious nouse using a standard Lathe.
A very skilled person indeed
Shoving a file into the threads while the lathe spins will perfect tolerances.
ANY TIMESERVED TURNER WOULD OF BEEN ABLE TO CUT A THREAD, BEFORE CNC CAME ALONG
I want to see it installed and running.
Astonishingly skilled work. Full marks to him for such an amazing repair.
Hope they took the crank rotation into consideration...
Mad skills with archaic equipment though!
Right on.
I think it was pegged
@ This method is not what I was trained 50 years ago. 😜
These fellas make more of the video than what they make on an actual repair.
Shhh,
Wow another lesson learned from a master of his craft wouldn't have believed it had I not seen it 👍
I’m impressed. Looks like he did a fine job. Very cool video.
Skilled lathe work, kudos!
A lot of these videos (like the sand casting videos) show some very rough work but anyone with a modicum of practice can see that this man is skilled.
How possible you can break a crankshaft?
Dude starts with two pieces of junk and ends up with another one. Brilliant.
Скорей всего это коленвал дизельного мотоблока или в роде того, скорей всего из за износа двигателя изменился угол впрыска из за чего возникают ударные нагрузки в противоположную сторону вращения маховика со времинем это вызывает усталость метала и трещины. Такой ремонт не поможет так как нагрузки от маховика очень большые особенно если не настроить впрыск. Но судя из состояния он уже давно где то лежал ы все это было только ради видео.
Ah, but he ends up with over 100k views on RUclips in 3 days……go figure.
I feel the the weak spot is the pain bolt which was fitted into the sude of the join to prevent both parts
Coming apart.
Impressive work, 👍👍👍
The guy has the knowledge and experience to do it without measuring tools. Eyeballing genious.😊
I dont care how "skilled" anyone is, NEVER run heavy equipment in sandals!!!😮😮😮😮
Looks like he’s got all his toes
Why.
@@BradAdams-fu4qx because he’s really careful 😳😳😳😳
We use to this kind of work here too , till we became a throw away society . Soon we will be back there again . Save those old machine tools boys .😊
A great Fitter & Turner I tips my hat to your skills , top job .
The original crankshaft is made of a special alloy steel, heat treated to withstand the forces and torque generated by the engine at work and under load. The donor piece most probably was made of untreated mild steel, not exactly the material you want in a crankshaft. Also the bolt used to secure the donor to the original crankshaft body may well work itself lose in service with catastrophic results. Countersinking and threading the original body so as to accept the donor has further weakened the original shaft. Most importantly a crankshaft is a high-precision piece, very accurately dynamically balanced, which acts as a complete unit and which cannot be messed with or patched up or repaired when it fails. Having said that there are circumstances when one has to make do with what one has, and as such, the skills and dedication demonstrated by this technician are admirable.
bohat khoob. great Idea...... very very good
With that amount of runout IF he ever got it timed correctly it would vibrate and self destruct
Agreed 100℅. Video made for show not for go.
This is just a video, it won't be used for anything.
How much runout did you measure with your eyecrometer?
@ spent more time standing at a lathe than you I would guess. Journeyman machinist and skilled in metallurgical work. How about you smart ass
What is runout please?
Amazingly skilled use of some very basic machinery. If the engine to which that crankshaft belongs is fairly low stressed, and I would posit that it is, this repair should give good service. Spare parts in some places are just not possible, or way too expensive, so the continued service of equipment depends on the ingenuity of machinists like this chap. Well done sir, great job.
Espectacular muy bueno te felicito 👍 👏 😉
Awesome job!
No coolant pump on this old lathe? Oh, and he's gonna lose an arm with those sleeves.
it comes with a full 6 hour warranty
Good job. Yeh i know its no drop forged billet steel but it will certainly be better than going nowhere .
that is a brilliant job well done Sir.
My only concerns are that I hope they took the crank rotation into account when cutting the threads and I hope they used a high strength bolt as their set screw to secure it. Also did they make sure the crank after repair was properly balanced still? Other than that I think it shows some good ingenuity being able to repair without welding to repair. The machinist seems to really know what he is doing considering he didn't use a CNC machine. You do what you have to depending on where you live and what you have available to you. Overall, very impressive work. I'd use that crank for as long as I could before buying a new one if a new one is even available depending on what it came out of. I enjoyed watching this video.
Excellent 👌👍
Unbelievably good. Top job. 💯💯💯👌
You guys are the man
That type of repair will probably work just fine on what appears to be a single piston engine, the methods and workplace hygiene of these places may at times be questionable, but no one can dismiss the work ethics !. 👍👌
بہترین زبردست
Amazing can do spirit. Outstanding
This is not trash these people are very talented and very smart so give credit where credit is do ...
Very ingenious repair..I would be concerned with the hardness. That other journal doesn't look so hot either.
These are the guys that make your replacement auto parts for autozone and O'reilly's, This is what you're getting, the good stuff.
Amazing skill.He would make A killing in America with those skills.
✨️Excellent ✨️
love it ... real engineering
Except a crank is supposed to be balanced
Great work very skilled,haters get lost
Very good job congratulations!! From Brasil
🤣🤣
Un très bon travail d'un vrai professionnel. Chapeau.
You spelt "cowboy" incorrectly
Very interesting. Crude but gets the job done
How long ago was this done? Is the part still in service?
Excellent job very nicely done 👍
crankshaft is junk
I hope it can last for a day or two.
It'll fall to bits just being put in 🤣
Good job
It’s not a waste of time if you can’t get another one or can’t afford it, that’s why they do this in their country, it works and that’s all that matters
Now thats how you do it 😊
What was the crankshaft for ? It still looks very rough.
It's for his snowmobile 🤣
As a turner... reading some comments of the so-called experts is real entertainment.
All shafts are mild steel.
Machined, hardened if needed, and polished to size.
This lathe has dails and gears.
And oh yeah, this video was made to show his skill. That crank will not work again, the off-set on that center will rip any case apart, and the big end journal is shod.
Just to get a bit technical.
And oh yeah, I do work in Saudi... those Middle East countries' comments are hilarious. They won't buy a new crank here... they'll probably upgrade the whole shop if the compressor fails. It's the "Foreigner shops" (Yemen, Sudan, Pakistan) owned shops that struggle, Saudi owned shops have great equipment.
Properly trained artisans are the issue... here.
The big end journal doesn't look too cleaver either.
Cast iron & the repair is mild steel.
i can smell them through my computer screen ......
Dollar store ruler, coat hanger welding rods, clapped out lathe from 1928. 😂
been nice to see the rest of it get cleaned but nice job though 😎😎
They should show it fitted and the Engine running.It wont last 5 minutes .😂😂😂
Neanche un minuto durerà
HOW about Health and Safety,can easily loose fingers ,hand or go blind without industrial glasses.
Nice work
Probably okay. I hope they didn’t show when they reefed down to tighten the threads , and locktite? What is the torque of?32 mm 2 ? Mm pitch thread into cast ?
Your idea of skilled is somewhat different to what skilled means elsewhere in the world!
For a start all that material he's shaved off 😂 the run out on that crank because it's not balanced any longer 😂
Sometime I wonder if they actually will use the item they fix or just trying to show off there (lack of) skill
Thats been in a scrap pile for years, the bearing surfaces are gone. This is a video only repair, not for use.
It's called "click bait" and bots to knock up the views.
It's all clickbait.
Like your lack of skill with grammar? THEIR not THERE FFS!
Mashaallah !!!
This guy didn't use a dial indicator to check for run out once. and only used calipers to check proper measurement. and that was some extremely fast thread cutting. that is something that a person can't do without some time under their belt.
wow and peace be upon you sir from me
Bei uns könnt ihr Politiker werden , die brauchen auch keine Bildung😂
Ha hecho una cantidad de trabajo bestial en una pieza de fundición que debe soportar unas fuerzas brutales, al primer giro del cigueñal se va a partir. Perder el tiempo a nivel dios.
Nell'inferno dei meccanici incapaci c'è ancora posto, tanto posto ...
Did anyone notice the new keyway was was cut into the wrong place? So, the flywheel timing will be about 45 degrees off now. Advanced I believe. Assuming, ignition runs off the flywheel.
You assume its an engine and a points on a rotor , perhaps its not have you considered it might be many things
THANKIOUPR❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤
I wish they would have shown the engine back together and running. That would shut up all the haters. I think it will be fine in a small engine. Those are low rpm , low compression machines that just chug along.
So, you measure the internal thread minor diameter to determine the external thread major diameter? All with vernier calipers?
Horse shoes and hand grenades!
This will fall apart after the first launch.
There's more chance his brother isn't his father than this thing even lasting any longer than being carried out of the workshop.
Surprised no cutting lubricate used.
Just another filthy mess!
The bigend is junk the bearing surfaces are junk, has this just been pulled out out of a bin, the bigend alone needs 3mm taken off just to get rid of all the rust and pits. Look at all the bloody dings in the bearing surfaces 😂
Ok...I've defended these guys on fixing axles, gears but draw the line at Crankshaft...things cant be that bad to where you can't replace it with new one!
I suspect many of these videos are not legitmate "repairs", but rather for the purpose of getting people like us to watch the video, since they earn money based on viewership. This crank with a bad journal in an example of a scrape part used just to make a video.
This is a legitimate repair.
Use of vernier to pull chips😮😮😮😮
The lifespan of that thing is measured in feet, not weeks, months or years.
Who will send me a location of this place I'll go there
All nice and pretty but the bearing faces are buggered
I’m sure this is not his first rodeo doing something like this
Bet it works better than Autozone china parts
The solution for when JB Weld just won’t cut it
The part of the world where the skill and ingenuity Rule!
The run out on that crank though 😂
Repair cost
1 rupee and a curry to you cheif
Will it hold up? We will never know… But I think not…
If they are smart enough to do this impressive work, Thjey are smart enough to not use it, It's a paperweight, Just making youtube content.
I feel sorry for the seals and bearings and the of balance vibration.
Not going to last, simple as that
I wonder if that's an air compressor crank ? If it is, I guess I wouldn't be AS concerned. But one makes due with what one has.
Snow mobile engine 😢😢😢
What’s up with the blue marker
Special welding ink. Makes the repair 10x stronger than a one piece billet.
Hola,dos cosas...como calculo el cono?...y el chavetero esta en otro lugar en cuyo caso si es un punto,no funcionará ...
That is trash, a waste of time.
Let’s see your work in your garage with minimal tools. This is a third world country. Wind your neck in.
How do u know?
Yeah, well some poverty stricken farmers who can't get replacement parts might have a different opinion.
Correct.
Nope ! Recycle Scrap .
Палец вверх 👍