How To Replace Large Crankshaft For Cruise Ship. Dry-dock Process & Largest Piston Overhaul Process

[@danny-li6io]

Thank goodness there’s a KZbin tutorial for this! I almost had to pay a team of engineers and maintenance workers to complete my repair!

[@petermainwaringsx]

I really did laugh out loud.

[@bigredc222]

I have a piston ring expander 34:11 if you need to borrow it.

[@slickdiggler1197]

Good thing this video came out. No way could I have changed my ships crankshaft without this! lol

[@thevaudevilleslick6669]

I cant believe my luck. I have SEVERAL cruise ships in my backyard and ALL of them need crankshaft replacements. I didnt know how to fix them, but thanks to THIS video, I can now get all my cruise ships back out earning money. WOW thanks 😢

[@billybobsowbreath1774]

I'll stop griping about my TINY 2-stroke snowmobile crank.. LOL. I'm teaching myself how to rebuild them. I'm not worthy after watching them stuff this 7 TON crank through a wing window.. LOL. Amazing work. I had an opportunity to work in a ship yard in my younger days - I wish I had done it. I think newer ship designs are more modular so they can be taken apart much easier for jobs like this (not that cranks are replaced often). Modular designs can swap sections in/out and re-configure the ship quickly. There are videos on submarines doing this already. I would also think that with today's tech and the fact these huge engines run at low RPM - they'd make the cranks 2-piece or maybe more. Great vid! Thank you!

[@paul-andrelarose3389]

Most impressive technology and craftsmanship, all too often taken for granted. Thank you. 2023/09/24. Ontario, Canada.

[@davidkendall1614]

Impressive work on that crankshaft. Some tight maneuvering to get that thing in place. I can only imagine the curses that would be shouted if they dinged that precision machining when swinging it through the tight passages.

[@guysabol8743]

many thanks for allowing us to see something we would never ever have been able to see. BUT thanks to your superb work we GOT to see it..once in a life time view for many of us! PEACE !

[@Hooverdarnit]

It's eye opening to see how dependent we are on the skills of others.

[@jeanmeslier9491]

May years aggo, I heat treated these large crankshafts prior to machining. We softened them by heating them, then we, hot straightened them,..These 4 to 6 meter crankshafts are now ready for machining. After machining they will undergo additional heat treating to harden them so that they will give satisfactory service.

[@chriswilkinson2548]

Cool, now I can change my mate big Piston in his big Boat. This handy to know. Thanks my Mr. boat people and patch holes too

[@denis9450]

Brings back memories done this type of work several times on ships and large generators in power stations

[@MrPossumeyes]

Thanks, team. Nice to see the range of skills needed to get a ship fixed up nice. And the folks who do the biz! Thanks MAN for your footage - doubt I'll need it, but thanks anyway. Very interesting. I'll keep you guys in mind for my next ship repair. Gotta keep those big boys floating, right?

[@blacklabel810]

Wow, what an extraordinary job repairing a very special tanker that I have ever seen. Thanks for sharing the video...👍

[@paulstewart6293]

That was a wee crankshaft. I don't know how a big main engine crank is changed. They probably hope it'll never be necessary!

[@JohnMatthews-hq1sv]

If man can do such brilliant works why we can't live in peace

[@eddisc4205]

there's no money in peace.

[@BariumCobaltNitrog3n]

If woman can make babies, why can't frogs talk?

[@JohnMatthews-hq1sv]

@@eddisc4205 psalm ch,10,Says,life,span,of,man,is,70,our,80,if,strong,and,fill,with,trouble,sorrow,and,quickly,pass,by,and,away,we,go.vrs,12,of,same,Says,Teach,us,to,count,our,days,so,we,can,acquire,a,health,of,wisdom

[@JohnMatthews-hq1sv]

@@BariumCobaltNitrog3n Genesis,ch,1,And,god,went,on,to,create,man,in,his,image,in,god's,image,he,create,him,male,and,female,he,created,them.vrs,25,of,same,ch,Says,And,god,went,on.to,make,the,wild,animals,of,the,earth,includeing,frogs,according,to,their,Kind.Man,have,knowledge,frogs,have,institinct

[@tuck6464]

Everything I needed to know. Have to put a new crank in my ocean liner next weekend.

[@vihabui3744]

Do you need a helping hand ?

[@gowdsake7103]

Best make some cookies and drink coffee

[@EdwardTilley]

Great video. It's obviously not a DIY video, but it gives a tremendous insight into the engineering and maintenance of these big ICE engines. I didn't notice which fuel is burned in these motors, but I assumed the basic crude instead of diesel.

[@bigredc222]

After you refine crude oil and get gasoline, kerosene and whatever else they can get from the crude oil, the junk that is left over is called bunker oil, that's what these engines burn. It's thick like honey, it has to be heated just so it will flow through pipes. I believe they start the engine on number 2 oil / diesel, then once it's up to temperature they switch over to the bunker oil.

[@petermainwaringsx]

Fascinating video. When the crankshaft was changed I didn't see any reference to big end/main bearing replacement. They must do that surely?

[@frequentlycynical642]

I assure you that that crankshaft was NOT sourced from Montevideo. It was custom made by the engine manufacturer, probably in Europe. Montevideo was the port of entry.

[@jlinkels]

I found the best part the restoration of the Elbe. To realize it was built in a time that Dutch shipbuilding was still significant. Which started to decline in the early to mid seventies.

[@StephenViola-ib8dq]

This is the best DIY channel on you tube!!!!!!!! Is that a big block crank?

[@tuco0x]

Holy word salad descriptions of repair and maintenance procedures, Batman!

[@HobbyOrganist]

That piston seems like its engine was steam powered when it came out so CLEAN and several references made in the dialogue to "stuffing box" plus the fact the rings seemed to be rubber not hardened steel etc?

[@billybobsowbreath1774]

You had ONE job Bob! Put the lock washer on the prop nut! LOL!

[@roghumph3]

Hats off to the designers who thought how the access was possible through the various decks

[@SuperMurrayb]

Tears are one of the most corrosive things on a ship. Underpaid workers cry a lot and their salty tears corrode everything. It is good to see someone talking about it.

[@TomokosEnterprize]

She looks so nice all polished up. I really like big and this one covers that eh.

[@campbellmorrison8540]

Thats impressive, the process must have been designed into the ship design to allow the crank shaft to be got out. The actual access was so tight it must have been designed

[@manifold1476]

gee wiz - - - do you suppose they use "designers" when planning and building a ship?

[@campbellmorrison8540]

Ha yes I know it sounds dumb but its impressive the detail huh@@manifold1476

[@chayannecastellano7221]

Not all the time a ship is designed for easy maintenance, my co workers and i did a Cat C18 in a pleasure craft and we carried the head and other stuff by hand and there was only room for two techs and everything had to be carried by hand inside the engine room

[@NicholasW943]

I like the deep voiced Sims characters talking in the background

[@gowdsake7103]

One of my ships had a spare prop shaft that had to have the side cut out to get it out

[@alexhayden2303]

Britain used to do this work. Service industries and an endless supply of foreign labour will replace all that and, of course, the 'City' with its financial wizardry leading the world, will supply all the foreign exchange the government wants. Unfortunately there are rumours that this is beginning to slip!

[@retropalooza]

I agree robo narrative should be demonetized. Whose to say they actually edited it

[@pileofstuff]

Robo-narrator and AI generated script. Taking the you out of youtube...

[@kenc3288]

Terrible script and pronunciation. Thumbs down. 😡🧐😡

[@garolopez887]

Yes the robo voices kill the video !! The ads sound better than the documentary.

[@johnnyholland8765]

I wonder what the clearance is between bearings and crank shaft and did they get replaced.

[@ovalwingnut]

"The unsung hero's or our world"...

[@Lawrence1203-f7s]

Wow I love to refurbish stuff but what you showed is way beyond.

[@ruscador1]

well done lads on the riveting

[@jsfoster75]

Fortunately I'm now qualified to change the crankshaft on my next cruise should there be a malfunction at sea. One of these type tutorials would have made a huge difference in the movie U-571 had those guys had this same type of technical training before going on that sailing.

[@robertsalanon2909]

Thanks for this vidéo !! Good job ...

[@randywl8925]

Very interesting and in depth descriptions. 👍

[@olukayodeokunowo4631]

This is a special job.

[@maryloutetreault1650]

Amazing ! Great job guys

[@DOLEWDREW]

I can do it😮⁉THANKS🙄for your encouragement. I will do it‼😂🤣

[@jorgemairena2289]

Increíble proceso y solo para una anillada gracias x el vídeo en lo automotriz somos más rapidos

[@nounoufriend1442]

Like the detail in shed even got matterson locomotive jacks , have to get loco on the the jacks with bogies out

[@johncantrell614]

Amazing work.

[@duaneayers6117]

Burpeg from Damon Australia. Do you know?

[@DogSerious]

I thought it was a new video, that replacement has been around on here for a while.

[@gowdsake7103]

Not got a great memory huh

[@DogSerious]

@@gowdsake7103Lol, the crankshaft replacement is old video for sure, this guy has just rehashed it. My memory is impeccable!

[@fredliperson9171]

See us guys in the blue jumpsuits? We are the guys that make the mega bucks! ...

[@nastasegheonea9126]

Respect! ❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤🥰

[@garolopez887]

A lot of love !!! Very cool !

[@jamesrivis620]

Note to person reading the script. It is ' WEAR AND TEAR ' pronounced 'ware and tare'.

[@JaseCJay]

it's a computer program

[@JaseCJay]

note how it pronounced the word bow incorrectly given the context of the video

[@BariumCobaltNitrog3n]

"Person" lol

[@MegaGearUsa]

Nice video 👍

[@UQRXD]

This looks like a remake to me. Thus robot voice. Am I right?

[@Hurst6969]

Impressive to say the least

[@HiddenResolve]

Ooo man, that tire wire job. Ooof.

[@Pithead]

Ah yes of course! Good old 'Procedure 903-1'. I'm just reading it now. Don't forget to check data sheet 102-1.

[@andrewmullen4003]

Have you heard about something called "editing"? it's where you adjust the images to match the sounds or narration.

[@graemescobie1623]

Ships and boats DO NOT have a "Tail Sharft". They have propeller shafts.

[@austrorus]

Her one can see MEN, knowledgeable MEN working

[@ronwakula6737]

That ship the ELBE looked ready for the scrap yard.

[@gowdsake7103]

You have never worked on a ship have you

[@pinkpanther7417]

She is still going strong. Volunteers keep her sailing every summer season.

[@cuba3433]

Good video i Like !. T.y.

[@cliftongibson9012]

Amd we're all buddies😂

[@Happyfacehotwheels]

At 1:04 Additionally... additionally what?

[@Lone_Star_Proud]

For a moment, the incessant narration paused and I though "finally", but it started up again

[@johnwilson9666]

That's right conserving materials rebuild not new

[@TheJimbob1603]

These robo-voice narrations are a plague on KZbin.

[@65gtotrips]

Totally agree…the AI is absolutely terrible.

[@trainnerd3029]

They are an instant thumbs down for me…

[@derekpask3633]

KZbin Please remove these long on point add CONS

[@derekpask3633]

Wow, thanks every one for your surport. My Pleasure

[@ashleypowell1623]

I wasn't sure until he said wear a tear.

[@StephenViola-ib8dq]

Where is the wrist pin on that piston? how does the connecting rod move with the crank journal?

[@planje4740]

- is that about replacement of lithium ion battery

[@meddylad]

I remember working on this very shaft....... we were all soo pissed off at the end of the job, cos just after the video finished, my mate Dai shouted " fuck...... ive only gone and left my hard hat and vape on the fucking cam shaft" 😂 🏴󠁧󠁢󠁷󠁬󠁳󠁿

[@thunderbirdone8126]

After all that work, they lower it down onto weld splatter.

[@gowdsake7103]

WHAT ?

[@enwri]

15:56 There's a lot of it too. Must be that millimetre tolerance he mentioned, that's just the biggest spatterball size clamped between all those machined surfaces..

[@jameswest8280]

I knew they used safety wire on aircrafts, but I I didn't know they used it on ships.

[@jameswest8280]

Where was this video on career day?

[@juliemcmeekin2095]

i uses to repair these insitu 50 years ago

[@brianyoung5532]

I when I worked many years ago looked after smaller but still Ro Ro ships in the Langton Dry Dock in Liverpool but never saw what everything entailed as regards to it`repair one thing it was not allowed to put to sea again until it was authorized by the Maritime Authority

[@yastakochannel]

Keren !

[@AnTiThesis-HaT-HoT]

The slowed-down voices made it seem like a kid was in charge of audio.

[@greghemlock6679]

Can I buy all the tools needed at Home Depot?

[@terrytytula]

The crankshaft is the last thing I'd expect to wear out on a marine engine. Unless it's very old or something like poor lubrication could result in premature wear on the shaft.

[@billybobsowbreath1774]

Anything that constantly runs in salt water is going to wear out no matter how well it's maintained. Salt water is pure evil on any equipment! Not a matter of IF it fails.. it's WHEN.

[@TinganHamada86]

Salam sukses ❤❤❤

[@bigbob1699]

How many master riggers to they have on the payrole?

[@admiralbeez8143]

I wish KZbin had a filter for text to voice vids.

[@cevagovago2774]

👍👍👍

[@jamesthornton9399]

What about the spots where the blocks are that the ship is brought in and stood on.

[@glennsoucy4359]

The docking plan takes that into account. They will either refloat it and move it several meters, or place the blocks in different spots for the following drydock period

[@manifold1476]

oh yeah, they paint them too, duh

[@dadgarage7966]

Pro tip: stay away from those "white box" ship crankshafts. Use only genuine replacement ship crankshafts.

[@billybobsowbreath1774]

LOL! What are you saying exactly... no "Hecho In China" cranks? I'm sure AliBaba or Amazon can have one boxed up and shipped to you in a few days? :) sarc.

[@streethawk29]

How much does that MOT cost

[@elgoog7830]

Pretty sure that crank swap, is from another video on yt.

[@christopherm.2001]

Faq green peace!

[@Not_fit_to_be_President]

How are they able to haul that huge ship out of the water?

[@Jeroen74]

They don't. They pump away the water around the ship.

[@Dave-in-MD]

What's worse? The bot talking over the non-original footage or all the bots in the comments saying all the great things about the video.

[@kylaura]

You should ask the police how they keep their light bars on the top of their vehicles.

[@DailyProcessHD]

this is hard job to fix this old ship

[@bingeciren]

What are those gremlin noises in the background?

[@sophiatruong-l9c]

imagine they brought it down to the engine room wrong crankshaft

[@manifold1476]

somebody half way around the world would get fired

[@randywl8925]

Swimmin' with da fishies 🐠 🐟🐠🐟🐠

[@jameswest8280]

Hand me the 8 inch feeler gauge.

[@abidahsan7389]

the stupid work of welding done in the end and then all welding spark and dirt going in in engine housing . may be the ship owner new will buy another crank shaft soon or early hahahaaa

[@travelinben1966]

What a ball buster.🙄

[@darreldanger7464]

Ran it out of oil did ya?

[@lynthongsirima103]

❤

[@williamdriskill8328]

I would have shut the entire job down until safety concerns were met to my satisfaction. I'm retired after about 45 years working in the yards, can't stop critiqueing what I see wrong, sorry everyone

[@johnnyholland8765]

And yet no one died. At least not on camera...

[@satidja_6923]

This is old video or what ? Why the mecanics doesn't used modern batery power's tools.

[@Richard-c5w]

What is up with the screwed up voices you can constantly hear in the videos?

[@Bonypart]

The screws to the piston rod? Screws are used with timber. Those are bolts with hex heads. Tut tut MAN.

[@robertnicholson7733]

The nomenclature of fasteners is quite complex, and not entirely consistent. But there is a fastener called a machine screw, most people would refer to them as a bolt, but technically they are not. Machine screws are designed to be screwed into a threaded part of a machine, whereas bolts are usually secured by nuts on the threaded end of the shaft. However, machine screws are normally threaded the full length of the shaft, whereas machine bolts usually have part of the shaft unthreaded. The best description for what you are seeing in the video is known by the lesser-used term "machine bolt" but would more often be referred to as a "machine screw, despite the unthreaded section of shaft. They would not be referred to as hex heads as they have flanges and are drilled through the head for safety wire, so a complex, compound name and a drawing or photo would be needed to fully identify what they are. Some variants cannot be identified without a close look at the inner surface of the head to determine the geometry of the surface and shoulder. Just to finish this off, the bible of machinists is "Machinery's Handbook", a 3000 page monster, it does not use the term machine bolt in its 60-70 page section of machine screws (ANSI/ASME standards (USA), British metric, British standard, British unified, BSW, BSF, Metric [intenational]) and refers to them all as machine screws, It also includes machine nuts, and not just for those nuts that are going to be used on studs, but also nuts used on machine screws. After that, it goes onto self-tapping screws that are also used in metal, not wood. These can have a non-uniform or uniform thread form. Now, to the shape of the head. When cleaning out an old archive of documents, I came across a hand drawn blueprint of about A2 size from the 1930s, this large drawing illustrated the types and variants, along with their dimensional standards, of "machine screw heads", some of which look the same as each other to the casual observer. It was for the bin, so I brought it home. Unfortunately, it has a very low WAF (wife approval factor) so is languishing, along with several other large engineering drawings, in a tube. I think MAN may have got the upper hand in the "tut tut" stakes.

[@Bonypart]

Thank you Robert for your technical explanation. At 81 years of age I am still learning and it is so good to hear from an expert that knows far more than me. (With apologies to MAN)@@robertnicholson7733

[@Bonypart]

Love the WAF reference. 🙂

[@BariumCobaltNitrog3n]

@@robertnicholson7733 Anything that uses threads to attach itself to something is a screw, it refers to the mechanical function and not the application. The verb form reinforces the action, for example a nut and bolt can only function if you screw the bolt into the nut. Nomenclature and jargon are sometimes at odds.

[@robertnicholson7733]

Nomenclature and jargon are not at odds, they are the same thing, despite the derogatory slant placed on the word jargon. They both describe a "language" used in a specialist field that allows precise and concise verbiage to describe things that would otherwise take many more general usage words or expressions to describe. Or so my original print (at least 45 years old) OED complete with stand and magnifying glass would have me believe should it not have an extremely low WAF and is thus, along with much of my stuff, languishing in storage. My attempts to have it in the house as a "conversation piece" were futile, something about a "churchy feel". As an ex-professional engineer, I can assure you that without field-specific jargon, the chances of getting anything right, in many specialist fields, in the modern world would be very low. This is why these descriptions are codified in standards. Barring silly mistakes, if you use the verbiage specified in the applicable standard in your order to your supplier, you will get the right part. Otherwise, you will be bogged down in catalogues and sending drawings and photos to one another and still have a significant chance of getting it wrong. This ends up with a large catalogue of terms, in information theory, a classic example of a code (language) that increases efficiency as the cost of a large dictionary. The English language itself, in its chaotic nature, has a relativiely high efficiency, at the expense of that massive OED. For a while the Germans used a system that described the function of things as their name, this resulted in rather long and involved names. In the earlier part of my working life, I was involved with Seimens-Halske equipment, the original manuals were a nightmare. But I am intrigued as to where you obtained your definition of the word "screw" for it was not the OED or the various mechanical standards texts that I have consulted. Also, I am even more intrigued by this "it refers to the mechanical function and not the application", there is a rather strong, relationship between mechanical function and application, more later. In general English, the two words spiral and helical are often considered synonyms, but they are not. There are spiral staircases in existence but they are quite rare, what most people call a spiral staircase is technically a helical staircase. This has a direct bearing on this subject. A wood screw has a spiral thread and could not be used with anything described as a nut, a bolt or machine screw has a helical thread and cannot have a spiral thread, a sheet metal screw can have either or be a hybrid of both. So, using a set principle to determine the usage is going to have a few hiccups. One of the more interesting principles is that a machine screw with a nut (there must be a nut!) is considered a simple machine (thus the name "machine screw") so in this case your statement is right, but it is not considered a fastening (even if it is often used as one) whereas a wood screw is not considered a machine but is considered a fastening and that does not agree with your statement. As to whether the thread goes the entire length of the shaft or not, well... And as to the bolt, well... out in the cold? And finally, if the object that has the female thread is not a nut but a girder, plate, or shaft, is the machine screw technically still a machine or is it a fastener? Ah, the joy of the evolution of language where old words are morphed and twisted by modern usage.