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

I really did laugh out loud.

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

Do you need a helping hand ?

Best make some cookies and drink coffee

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!

there's no money in peace.

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

@@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

@@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

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.

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

Terrible script and pronunciation. Thumbs down. 😡🧐😡

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

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

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

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

A lot of love !!! Very cool !

Not got a great memory huh

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

You have never worked on a ship have you

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

it's a computer program

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

"Person" lol

Well,the german way of,....bla,bla,bla

WHAT ?

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..

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

oh yeah, they paint them too, duh

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.

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.

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

Totally agree…the AI is absolutely terrible.

They are an instant thumbs down for me…

RU-vid Please remove these long on point add CONS

Wow, thanks every one for your surport. My Pleasure

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

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.

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

Love the WAF reference. 🙂

@@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.

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.