Crankshaft Bearings Wear Out Due to Oil Leakage || Grinding Crankshaft Rod Journals on Crankgrinder
2021 ж. 9 Қаз.
177 229 Рет қаралды
The main reason crankshaft grinding is done is because the crank wears over time. Over thousands miles the end play between the crankshaft and the bearings increases. ... When you reduce the size of the bearings you reduce the overall surface area too. Less surface area equals less friction and better engine performance.
#grindingcrankshaftrodjournals #crankshaftmachineshop #crankshaftmachining
Love seeing chuck adjustment after grinding 3 bearings.
3 journals. Not 3 bearings.
Mechanically, the best setup I've seen on your channel 👌
Better lathe and measuring tools.
Thats what big machine working. Its make it posible. Thank you for sharing the knowledge.
Guy's, please don't take this as an insult. What we see on the television and in the media in the United States about the middle eastern countries, it shows very rural backwards villages that have no technology for making industrial products. From watching these videos, I can honestly say that your countries are being portrayed unfairly and incorrectly. From watching these videos, I can clearly see that your countries have real manufacturing skills and are a real contribution and asset to the world. You definitely have my respect for your manufacturing prowess and capabilities. I hope to see more videos like this one, videos that show western television and media as being biased towards and wrong about the middle eastern countries. Henry Ford, the founder of the modern industrial manufacturing and assembly line, he would be proud to see how much you work together, to make a refined and quality product. While I would like to see more work safety practices, I understand that personal safety gear may not be affordable or even available. I worked in the industrial machining and heavy equipment environment, hence the reason I mentioned safety. Even in spite of the lack of safety equipment and practice, you have definitely won my respect and I hope to see more of these videos. Keep up the good work. -Otis
Jak zwykle na ziemi w piachu, dobra porządna i nowa obrabiarka.
Na betonie, piach by tego nie utrzymał... Jakim problemem w ogóle jest ten piach na tym betonie skoro tego typu maszyna z zasady produkuje kilogramy opiłków stalowych?
Мое уважение к людям труда!
Хоть один положительный комент от нашего народа. А то только срань диванная. Лайкос и тебе, мил человек и индейцам естественно. За труд ихний.
Да-да, почитай, что импортные ниже пишут) Ругают все - а видишь только русских. Эмигрант что ли?))
@@koss2022 Я импортнуй не знаю, пробовал через транслит, то только хвалят. А те шо ругают, так то наши выродки шифруются.)))
Please explain to me, why everything needs to happen on the floor? Are tables a rare commodity? :)
😂😂
I ground crankshafts many years ago always ground rods first then mains last ,as this reduced warp on mains due to stress relief on rods and having problems on rebuild.
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One thing that I immediately noticed, the man who is running the crankshaft grinder, he is not properly trained on how to use a micrometer. You always tighten the micrometer with the thimble, never tighten the micrometer with the screw body. By tightening with the screw body, you never get a consistent measurement, as you would when using the thimble. Plus, tightening the micrometer with the screw body and not using the preset tension of the thimble, you stand a very good chance of springing the micrometer. Once that happens, you will never get an accurate measurement again and all of your crankshaft journals will be of different sizes and possibly way under sized, which will in essence make engine oil pressure lower than manufacturer specified minimum oil pressure. Even in spite of these deficiencies, very good video.
First, find a dirt floor.
Then beat the crank into submission with a hammer...
Then cover with talc and dust off no less than 3 times.
Tienen un personal muy original y muy preparado para hacer ciencia soy nicaraguense y así PIenso en esta parte del mundo mis respetos por ustedes
Seeing that crank being reground brings back memories of over 40 years ago. Thankfully I didn't have to put up with Pinky and Perky rabbiting away in the background........
I would like to send him a set of my old digital mics, and my old Crown surface table but they'll probably use it as a lunch table.
HE HAD A DIAL INDICATOR FOR RUNOUT OMG !!!!!!!!!!!!!!!!!!👍👍
I don't understand why they always squat and work on the floor...
How and why do these guys squat all the time ? Me knees ache just watching this
they squat, stand up and down, standing, walking all the time...this makes their knees become robust...
If you are used to it, squatting like this is very comfortable - in western culture it's not common to sit like that, so the muscles and tendons shorten and make it difficult.
Almost all asian people squat since childhood, and some african tribes. If you never do it, it feels like something is about to crack. Some westerns can't even do the western squad :P
Чётко! Всё как надо! Станочек супер!
Step 1 5 minutes of wiping with a rag a rolling it in the dirt.
Yeah and poor kids put to work ,should be in school, Sad reality of 3 Rd world country.
@@33maple I'm sure in your racist country there are people sleeping on the streets, criminality, politician corruption, prostitution etc. etc. all the good things of a racist country.
@@33maple Probably learn more in machine shop than in school, at least how it was for me....
Good day fam, on my e30 2.9 stroker build, i machined my crank (328i) to accommodate 320i rods. So the engineering guy said the crank is machined to its last deck or spec, and further said that if i won't spin or race with the car i should be fine. So should i be worried that the crank is gonna last that long?
За шейку вал где сальник стоит зажал патроном теперь оттуда будет течь масло в корзину сцепления.
Yeh shop konsy City main h ?
Pekerjaan yang mengagumkan👏🍻👍🇮🇩 Translate comment🍻
I couldn't imagine working all day in a sundress!
Guy does good work , l see it in his face.
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Hebat sekali👍👍👍
Nice job ! ....but if you change the measurements on the crankshaft, how do you handle all the adjustment on the other parts ? bearings, motorblock, weight of crankshaft vs weight of pistons, con-rod.
You can grind a crank. It's done all the time. You get what are called undersize bearings. If you cut .010 off the journals you get .010 bearings which are just .010 thicker to make up for the metal that's lost off the shaft. They can check balance if they want after and rebalance but this is a work diesel engine so its not turning like 10k RPMs , it will be fine. Also if it was balanced from factory your removing equal amounts from all bearing surfaces so it should be close enough since your removing an equal amount of metal from factory balance off each journal.
Коленвал с Болгарского мотора д3900 Если не ошибаюсь.
Brilliant job wear your glasses never happens to me be careful thank you
WHICH COUNTRY IS THIS WORKSHOP??
CNC ?
Price for grinding?
Nice to see clocking it central.
Bom dia amigo que máquina é essa
Love these crank machines. Now, can anyone tell me why the powder
Degreaser is my guess
It has to be crack detection before any work is performed; if cracked, they will not machine it; i just googled and also got this, and a penetrant liquid and a white powder is used: *With a visible penetrant inspection, the process is the same; however, instead of fluorescent dye, a highly visible, colored dye is used with a white developer, which makes any contrast visible under regular light.*
@@josepeixoto3384 Agreed - my above guess is wrong I think
Nice job👍👍👍👏🏻👏🏻👏🏻
If you're removing material from the shaft, won't you have to use bigger shims or something to compensate for the now smaller size?
There called undersize bearings. They make up for the thickness of metal removed. This is how we rebuild engines here in the US as well. .010, .020 , .030 are the common amounts to take of the journal surfaces .
@@natevanlandingham1945 thanks
OSHA!!!.. where the h3// were you when we needed you?
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What is that tool rest looking thing? Is that used to stop deflection of the crank?
Это люнет. Именно для компенсации изгиба от воздействия инструмента
@@MrGlAlex Any chance I can get that in English? I'm not smart enough to read Cyrillic
@@halfnelson6115 hit the translate to English button under it. I see it on my phone?
@@natevanlandingham1945 no dice. I have the translate button for the original comments but not for the responses to the comments.
@@halfnelson6115 hmmm? Basically he said it does what you said. Keeps deflection off when the grinder comes in to the crank.
Iska sallary kitna hai
No Arnold gauge. Steady rest has no lower support.
Surprised that grinder has no Arnold Gauge
What was the powder dusting and wiping it off all about.
Crack testing ?
@@zilspeed Of course John, and the tapping with the hammer. It makes sense.
You have oil/grease on it to avoid grinding when its working inside the engine so you need to clean it off as they are planing to grind it and oil/grease on the element you are grinding gonna cause problems/slow down the grinding.
Jaki to kraj?
Mashaalah tbarka allah taala shukrea 👏👏👏👏👏👏👏👏👏👏👏👏👏👏👏👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍
When cleanliness counts, work on the dirt floor.
What is that crankshaft check powet
What is that crankshaft check powder
Есть такая штука называеться верстак. На него можно ложить детали и работать с ними, а не на земле.
Это и есть Пакистанский верстак!
Ты ещё скажи что электроды гнуть не надо;)
@@evgenkulbida4443 до сих пор не могу понять, зачем они все гнут электроды)
я то думал наших нет, а нет есть.
Тут наших много))) Любят Пакистанский сервис
@@Leonid_01 не то слово уж больно криво всё получается наши так не могут.
@@DEMON23027 ещё как могут, ещё и пакистанцев научат
@@Swarog35 да не у нас столько сварщиков и токарей нет, а тут даже с перебором причем все и сразу.
Always makes me smile when i see footage like this. Crank prepped on a dusty bare concrete floor then slipped into a pretty flash crank grinder and the doctor begins to operate. Glad im not getting a vasectomy. Looks like big dollar grinder (for up those ways) but where is the piece of 1 cent sheet of cardboard on the ground or the cheap solid welded scrap steel bench off the floor to prep the crank or homemade parts washer?? Cleanliness is next to godliness so the saying goes!!! Regardless, bush style engineering still yeilds results but lacks finesse. Whats your thoughts??
That you have no idea what are you talking about? The young guy was cleaning out the grease/oil because that stuff is on a crank to stop grinding and that is what they are planing to do... How exactly you are planing to achive this "cleanliness" in lathe that by design is producing huge amount of steel particles? Where is the logic in your comment? Crank should be clean when its mounted inisde the engine as anything betwen the crank and the bearing can cause trouble/grinding!
@@Bialy_1 I was thinking the same that. That lathe is going to blow metal shavings all over it and fill the oil galleries with metal that will need to be flushed out.
Drama. Take the crankshaft, wipe it with a dirty cloth, put it on a dirty floor, fix it in a grinder. Start surface treatment, take a micrometer and use it for measurements incorrectly. After you finish work, put it on the dirty floor. Bravo - a very bad job. Someone teach him to use a micrometer - please.
People have worked under more primitive conditions for years on all sorts of equipment. They do as good as they know and it works. The old machines could have it done without a lot of fancy stuff.
@@carlhokanson9160 The machine he uses is OK. In this type of work cleanliness is absolutely required. After grinding the surface should be cleaned oil channels, crankshaft should be thoroughly washed, if there are metal plug (such caps) should be removed and the dirt that has collected under them. It is with them that oil for lubrication is fed. Will this shaft will work - probably yes, but if the work was done properly such an engine would work longer, and so in 30000 km it will be overhauled again. Even with primitive methods it can be done better. Pressing forcefully during the measurement of micrometer damage its tips, which will cause large errors in measurement.
...and that's why it cost so much and takes so long to get your car fixed in America. You Ruben, should keep your ways to yourself. Or maybe you just realized that you don't need all of those fancy tools to get the job done. That you will be paying off Tool Truck bill for quite awhile.
@@davidwalker7383 Luckily I don't live in America .... In the country where I live, we know how to use the micrometer correctly, we respect our work and the client's money. I have seen many times what dirt can be removed from the crankshaft oil channels. You will not clean the oil channels (and there will be dirt in them), the oil will not lubricate the bushings, the shaft will seize. There are certain activities that are mandatory and they are not activities that require specialized equipment or cost a lot of money. Perhaps this shaft will go to someone else who will wash it, clean the oil channels. May it be so ....
@@rubens7498 Lets just say that you don't have any of those tools. Are you just not going work? Right! Your going to adapt and over come. These people have just as much if not more respect for their customers. Maybe pull your nose from the clouds and quite being a snob.
Песком белым посыпал - на трещину вал вроде проверял.
What's that yellow thing?!
Looks like it's a support, may be brass or similar material to counteract, and apply opposite pressure or stabilise the crank during the grinding procedure. My thoughts only may not be factual.
@@brucepickess8097 its a steady rest
@@ronniemckinzie7982 Ok, thanks. What material is the "rest" suporting/in contact with the crank do you know ?
В России так в 90-е было
Как будто сейчас всё разом в России изменилось? в 90 % на заводах такое же если не хуже по оборудованию и облезлым цехам
Станок классный но одна у него проблема подшипники слабые на бабках
как называется станок???
They have nice equipment, why not build a table instead of working on the ground hunched over!
I think like you also every time i watch them working , they have the tools & materials, why just not build one, it's cleaner to work on .
Why stop at a workbench. Install a toilet, hand washing sink and directions.
What kind of people?They stand cancer all the time, work on the ground, can't elementary tables be made??This is something moronic!
This country do everything on dirty ground
Где Вы снимаете?это Пакистан.или Индия?
Pakistan
есть разница? народ то один.
@@fainderskurs-koi8767 согласен..только воюют лет 50..
@@Inkognito0777 А что поделать, всем мозг не пришить. И виновных не найти.
@@fainderskurs-koi8767 все войны из за земли..Из за маленькой территории
Bravo au rectifieur. Les commentaires de merde,zéro. Il faut arrêter de croire qu'ici nous sommes des exemples. Oui,ce n'est pas nickel,oui des enfants travaillent. Et alors,il gagnent de quoi vivre,sans être assisté d'aides sociales et autres.
are these cavemen knows what is right and wrong?, prolly not
What do you expect from these people to build a sterile workshop like a surgical room, there are different realities, different money for such services. If you don't like it, why are you watching these movies? Show how you do it perfectly in your workshop. 🤬
Makes me sick seeing equipment go to third world countries. Nothing like work done in the US, we actually know what we are doing, we don't powder anything, nor do we cut corners like these folks do. I wished industry had not sold out to the lowest bidder.
Its Indian made lathe... so what are you babling here about? And they used powder to get rid of the grease, in USA they would use chemicals and i can bet that this chemicals and production of them are not very friendly to our planet. Also English language is part of the Indo-European family...
Makes me sick, trash assuming assumptions on top of assumptions, I will say crank grinding is more accessible and better in most instances THERE, than grinding here. Also, that crank grinder is MADE IN PAKISTAN. You can buy one around 13k. Air bright auto Company. That was an AMAZING crack check, Fine white power and hammer listening for dull tones or buzzing or any other signs of cracks. After Tinging on some cracked ones you would understand.
Alles auf dem Boden, wie die Affen.🤣🤣🤣🤣🤣🤣🤣
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