Wow, just seeing all the cuts and angles of shots, I can't imagine how much time it takes to film all of this. Thank you for doing this chief. I also see how hard these guys work. It's tough work and obviously long hours. I often wonder how long our car engines would last if they got this type of care! :)
As a mechanic and mechanical engineering student - forever. There's no reason what so ever that any car built in the last 70 years can't get a million miles on the odometer. All it takes is paying attention to your vehicle and proper maintenance. Both preventative and otherwise. Never think your oil change can wait, Always do it early. let your engine warm up before you ever take the parking brake off or put the car in gear. Don't forget the little things in your owners manual everyone ignores. Change trans fluid and filter every 75k miles. Change gear oil in your diffs every 90k. Wheel bearings I tend to do around every 100k. Flush your trans, brakes, power steering, and coolant systems every time they're serviced. Do an engine flush every 3-10 oil changes. Change brake fluid every 2 years. It's expensive, and adds up quickly to an expensive mess to keep track of. If done properly however, on a good car, a million miles is just finish the break in.
@@StrangeTerroryep,exactly I hate when people say nowadays cars suck because they are made out of "plastic" "not real material" etc. They just dont give enough attention,nothing changed in cars,the only thing that changed is every manufacturer wants more horsepower so if you are not using your engine in right conditions it will die yes.But wirh regular check,change and normal useage?It will go for a loooong time And there is a 1% faulty product always,but thats small as fuck
There's one time the injector got stuck because of carbon build-up in the socket due to exhaust gas leakage. We had to pull out the entire cylinder cover and still took us a week to pull the injector out.
Back in the early 1980's I worked on drilling rigs in a natural gas field. One rig was built in 1942, all mechanically driven. The 2 main engines were huge V12 Waukesha diesels, I loved crawling around that thing doing the maintenance.
Manufacturing is far better these days But no one does any scheduled maintenance these days Just run it till it dies I mean we should prob be changing the injectors on all engines at 2000hrs but no ones going to do that, everyone's running them to 5000hrs till they die and drop the tip into the chamber and fuck uo everything else then blame the manufacturer And don't forget in the 1980s that engine was only 40yrs old So stuff made in the 1980s still running today has done just as well and there's alot of 80s machines and cars getting around
Their is one account of a maintenance crew on a ship allegedly forgot a maintenance crew member was inside a ship's engine block seeing no one told him to come out they sealed the maintenance entry port and fired up the engine later reporting a missing Man he much Likened unto early history torture such as the brazen bull 🐂 was Roasted alive exposed to pressure's positive and negative vaccum and searing Heat until dead it makes one wonder 🤔 if the crew punished him for some odd trespass against them?
Thanks chief, I really like these tech videos, very interesting seeing the details on the big ship systems, and how you folks keep it all running. You are true professionals. Safe travels!
@@kevm7815 I don't think you can pull out an injector while the engine is running at full speed though, the pressure of the air blasting up thru the cup would make this job super dangerous and impossible to clean and lap the injector cup mating surface properly. Sure, on ships with hydraulically actuated exhaust valves you could hold the exhaust valve open longer to kind of act like a compression release on a lawnmower engine, but you there's no way to stop scavenge air from being blasted into the cylinder you're working on every time that piston hits bottom dead center and the piston uncovers the scavenge air ports. While the ship is underway at "Navigation full" speed, the scavenge air pressure is crazy high compared to even a supercharged Dodge demon.
@@brnmcc01 We have engines now that have control gear to actually shut down cylinders in turn in a set sequence, so a 9 cylinder engine at slow speed can operate effectively as a 4 cylinder engine, these big engines when turning very slowly on 9 cylinders use very little fuel and it can be difficult to actually get the cylinders to fire properly, so by working as a 4 cylinder, more fuel is injected into less, so helping the cylinders to fire effectively, run smoother also helps with the emissions as well.
Brings back memories of changing injectors on UK railway locos. One of my jobs was testing and setting up injectors on a Hartridge testing rig. we used Fucious oil as a test liquid as it had the same properties as fuel oil but without the hazard of possible skin problems.
Awesome stuff Chief, question the tools you guys use such as the injector puller and the lapping tool is that custom built by you guys or do you get it from a manufacturer? Keep the maintenance videos coming love them. Thanks Chief.
While I haven't worked on slow speeds my guess is that there is a smaller injector for use at lower loads as the larger injector at low load would normally create a mixture that's too rich.
I had an old 1940s navy book how they would even show the smelting metals in electric furnaces and casting pump housing etc of parts on-board the ships workshop when they didn't have the parts available and in the middle of nowhere..unbelievable stuff.. I've done a bit of this as a hobby and found it fascinating reading.
Well, it is an engine that comes from the factory with walkways on both sides, and also with 3 levels of them as well, plus ladders. With hatches for inspection, that allow you to walk through, and see the engine from the inside as well without needing a borescope.
A comment and a question: Had I known about this job field as a kid, and had I known where my natural interests would eventually take me, I would have enjoyed being a ship's engineer. Great video, Chief! Now, about your name: I understand that a mako is a type of shark. Why do you capitalize "MAKO" and then use a lower-case "i" at the end? Is your name Makoi and you are stamping the shark image on top of that? If so: very clever. Or is there some other reason for the lower-case "i" at the end? Please explain. If you have already, please link to that older video. THANKS!
Chief: Doing an equivalent job on land in the USA, locks and tags would have to be applied to the fuel pump and the valve to that cylinder, as well as to the main engine. Do you use similar procedures?
Very interesting, so there' no copper seal between the the injector nozzle and the seat as in automotive injectors? Are these pintle valve injectors? How do you mitigate grinding paste entering the cylinder? Thanks for the video, from an ex long time auto mechanic (VAG). Edit: I guess the torque value is corrected for the extra radius applied by the crow's foot wrench?
I would guess that on an engine that size the lapping paste is about as bad as the carbon particles and bunker oil crud lol And I would expect that the torque specs include the offset specs for the proper crow's foot wrench. Though it suppose the exact torque isn't as critical as head bolts or something, so maybe it just assumes that most crows foot wrenches are about the same length.
I was worried about the grinding paste too. Torque on a body is irrespective to where it is applied. You need a fulcrum to convert torque into a force. The fulcrum in this case is the rotational axis of the fastener and that is constant. It is indeed remarkably counterintuitive that the geometry of the wrench is irrelevant.
@@Tadesan The torque wrench measures the torque at its fulcrum which is different than the fulcrum of the crow's foot wrench. However because they're close to each other compared to the length of the torque wrench it doesn't really matter
@@Tadesan you missed the fact that adding the crow's foot wrench adds a second fulcrum, and so the torque that the wrench sees is different than the torque that the nut sees. Imagine if the crow's foot wrench were 3 feet long from centerline of the fastener axis to centerline of the ratchet axis, and you can see how the leverage of the added length will reduce the force that the ratchet sees. It will also change the force the ratchet sees depending on whether the crow's foot is straight out the front, in line with the ratchet (maximum leverage), or at a 90 degree angle to it. So while the geometry of the wrench doesn't matter, the length of each section of the levers used matters very much, and using a crow's foot wrench adds a second lever and a second fulcrum as compared to using a single wrench or a socket, and so adds a lot of variability to what the fastener sees compared to the amount of force applied on the end of the handle.
Now that’s an injector!! Love these tech videos chief. Question: why do the engineers wear white overalls. They’re dirty within 5 minutes after starting there shift. I would think dark grey , dark brown or even black overalls would make the guys look ‘clean’ a bit longer ! Thanks :-))
2 роки тому+2
These throw-away overalls are made of Tyvek, and Tyvek is white
Tradition mainly, they can be all colors now. Originally on steamships the boiler suite was white cotton, white reflects heat from an open furnace, also cleanliness, to keep them whiteish they need washing frequently, a clean cotton boiler suite if driven into a bad wound is less likely to cause a bad infection, no dyes either. Remember we can be weeks away from a doctor or hospital. also frequent washing removes the smell of sweat. We still prefer cotton even if colored, as in a flash fire it doesn't melt, it scorches, but doesn't melt into the skin.
I was wondering this too, plus all the spraying they did down there that went into the cylinder as well. I'm guessing it just gets burned up/expelled with the first piston cycle when they turn the engine on.
back in the day, the chief sat in his cabin and checked the fuel consumption. the real work was done by 2nd eng. Never let the chief touch any tools or controls...
10-25 years. It will generally outlast the ship. Most of the time, the main engine is running well enough to ram the ship at full speed onto the beach at Alang, India to be scrapped...
Two injectors per cylinder? At least you guys have good access, as compared to aircraft engines (which are often very cluttered to get the cowlings fit as tightly as possible).
On heavy truck diesel engines...........10,000 hours would be what most operators would expect from injector nozzles. The major problem has always been that OEM fuel filters are only 60% efficient at their micron rating. But new aftermarket products are on the market, widely used by transport and mining industries that are 99% efficient at 2 micron, and so injector contamination and even rust from dissolved moisture (always present in petroleum fuels of all kinds) has been eliminated.
Amazing how you can explain all this. Do they engineer the systems for easy access to parts? They don't do that with modern cars but I bet they are more sensible with ships.
Thank you for making these episodes. I only speak for one sub, but all the technical things fascinate me. I would go down to my local merchant marine school right now, tonight. I don’t think they’re interested in a 65 year old. Too bad. Your world is very cool for a gear-head.
I have that same question, can the injector be replaced while the engine is running? Would you stop the M/E while at sea? If not, why wasn't there air being pushed out the injector hole on each up stroke of the piston?
Hi Chief! That video sure did bring back a few memories. Hey, thanks for the instruction, you just never know when you might be on the side of the road, needing to overhaul an injector! LOL
Thank you so much for these videos...I'm a car machanic but still wounderd how the parts look and maintenance is done on them ...much respect and admiration...may the wind always be in your sails my good sir
Time to train your guys to use the correct socket to set that torque, using the adjustable nut rounder is not the right way, as those nuts clearly show rounded corners from long use of that tool. That spanner with set and ring end, probably 24mmAF, should be in the tool case already, and available to them. As well get a few crow foot spanners for the union ends, they will make undoing those unions easier, and slip over the pipe and then down, giving at least 4 contact points to grip the hex of the nut, so lessening it distorting. Adjustable spanner is great for emergency use, but for this kind of work you really should have the right tools in the set, as after all a broken nut will cost you a lot more than the cost of the nut to replace it.
Couple of questions.1) do you shut down the engine for the six hours it takes to change all of the injectors. 2) if you don't aren't you worried about running the engine lean. 3) do you carry an extra injector for every injector.
I love these maintenance videos, but an unrelated question crossed my mind: who does the laundry? Do you guys have to wash your coveralls while on a voyage or do you have a good supply of clean ones on board and get fresh ones when you go into port?
Hi from uk Chief MAKOi👋👍 great to see another service interval upload, I love watching you and crew maintain!👍 great job by the crew💪👌 am just curious do you have a yellow check engine light😂😵😂😂😵 (just kidding I know you do😂) I wonder how much you atomize at every fire cycle tho (probably half 1/3of my cars fuel tank(😂😂) lol have you ever had a engine failure at see? How did you get round problem if so? and hope your fourth got his new title from cadet on his test from couple uploads bk 👌👍 thanks for your time and be safe see you soon👍👋
Chief, I'm curious if - on each subsequent engine design - the companies take notes from engineers on how to make their engines easier to work on? It always seems like, despite the size of the engine, everything is cramped together. Is there anything on the engines and machines you work on that continuously frustrates you with poor design, considering that they "know" that you'll have to do maintenance on it? I'm reminded of a car that I worked on where you had to remove several things just to get the battery out.
What is the max engine RPMs on that thing? The largest locomotive engine I used to work on was a 16 cylinder, 645ci per cylinder and its max rpm was 900. But it powered the generator only. I'm not sure if ships are direct shaft driven or gen/electric like locomotives.
A bit larger than the ones in your car. BTW a motor are not a motor before a person can comfortably stand on top of the piston, move around in comfort in the crankcase, and with a little MASSIVE sweating and a lot of air, crawl around in the exhaust manifold. And if it go more than 100 RPM,,,,, well its just a toy. BTW on Torm Kristina we had a hole burned strait thru the valve,,,, and mind you inside the valve seat, and large enough for my little finger ti fit in it. 😮 All hands on deck to fix this,,,, actually i even think i saw the chief engineer in the "hole"
Chief questions lang. Ano-ano ba mga requirements or mga dapat gawin kung gusto sumampa ng barko. Cargo or tanker. Basta international. Okay lang ba kahit wala kang basic maritime course? Yung mga trainings na needed para maging OS sa mga cargo/tanker. Salamat Chief. Sana mabasa mo ito. Ingat and god bless.
I'll just say this. Drag teams get the car in pits, dissassemble the engine COMPLETELY and reassemble it all in just a few hours. If you had a team of well seasoned mechanics, you could get a major service done on one of these engine in less than a day.. filters, oil, injectors, anything that doesn't need a massive lift. And possibly even that.
Hey cheif... you need to redesign that injector seat. The build up occurs because of pressure in the cylinder and then cooling heating cycles as well expand and contract the metal. Maybe a gasket would help. The whole engine should be redesigned but some war monger oil companies dont like me very much. A lot of resistance from australian government. Greek shipping, lots of diesel in those ships. Melbourne australia diverted a lot of attention away from my evidence, courts, police, medical, communications, drugs, entertainment, media.... covid lockdown. Fraud. Some people in melbourne claiming everyones loot. Post office, drug dealer core... shappel corby council baggage handlers.... massive corruption... pubs clubs, brothels, gambling. Everyone dying and they are preventing any releif in order to protect their ill gotten loot. People being denied any justice because those groups paranoid its against them. All a big staged show.
Why no cordless impact guns? This was painful to watch. Also how do you keep the lapping compound out of the bore of the engine while lapping the new injector?
From the vid I think torque is a little off. From previous training the crows foot or adapter should be 90 from wrench or torque recalculated with the adapter length.
Not exactly a toy are they. The filtration system for the fuel oil must be very well designed, I still find it hard to believe they run on such crude oil. Thanks for the video, how about a crankshaft replacement ? I jest of course - hopefully.
Polishing the surfaces is good, but how do you clean the abrasive compound from the engine itself, they just flush it inside the engine? But that's gonna ruin the engine...
My old boss and I got into an argument about not having an annual Maint. shutdown. He wanted to have a "slowdown" instead... WTF??? I told him there are two kinds of shutdowns... Planned and unplanned. We got our shutdown. But he never really forgave me for doing that in front of the staff... Oh well,
How do you keep the grit from the lapping compound out of the cylinder? It looks like all the gunk is being flushed down into the combustion chamber area?
Wait how big & exactly what psi. Ratings can be reached with these Giant diesel engines they say the fuel injectors from commercial trucks can spray fuel thru a 2×4 piece of lumber or else the secondary Question what sort of compression values are reached on these Giant motors
Hey man, I'm super interested in becoming one of these mechanics as a career. Would you mind giving me a little insight as to the process of your schooling/certification?
Chief, are your videos used for instruction at your alma mater or with newer crew members? It seems like they’d be very useful for introduction to various operations.
Chief, why don't technicians use any sort of power tools? Their land based counter parts can't be bothered to turn an actual wrench anymore since battery operated tools have became so popular/available/affordable.
How do they keep the lapping compound from getting into the cylinder while cleaning it? Seems like even a little of that getting in there would cause major issues.
As a retired trawlerman who was the one that worked on the engine as we the seat in the wheelhouse, these vids fascinate me so cheers 👍✌️🇬🇧
Wow, just seeing all the cuts and angles of shots, I can't imagine how much time it takes to film all of this. Thank you for doing this chief. I also see how hard these guys work. It's tough work and obviously long hours.
I often wonder how long our car engines would last if they got this type of care! :)
I second that. It is a very responsible job for responsible people.
For ever
4-evah
As a mechanic and mechanical engineering student - forever. There's no reason what so ever that any car built in the last 70 years can't get a million miles on the odometer. All it takes is paying attention to your vehicle and proper maintenance. Both preventative and otherwise.
Never think your oil change can wait, Always do it early. let your engine warm up before you ever take the parking brake off or put the car in gear. Don't forget the little things in your owners manual everyone ignores. Change trans fluid and filter every 75k miles. Change gear oil in your diffs every 90k. Wheel bearings I tend to do around every 100k. Flush your trans, brakes, power steering, and coolant systems every time they're serviced. Do an engine flush every 3-10 oil changes. Change brake fluid every 2 years.
It's expensive, and adds up quickly to an expensive mess to keep track of. If done properly however, on a good car, a million miles is just finish the break in.
@@StrangeTerroryep,exactly
I hate when people say nowadays cars suck because they are made out of "plastic" "not real material" etc.
They just dont give enough attention,nothing changed in cars,the only thing that changed is every manufacturer wants more horsepower so if you are not using your engine in right conditions it will die yes.But wirh regular check,change and normal useage?It will go for a loooong time
And there is a 1% faulty product always,but thats small as fuck
It looks like the abrasive lapping paste ends up in thd cylinder, is there something special with the paste ?
All 30min jobs are 1 broken bolt away from being a 2 day ordeal.. Lol
There's one time the injector got stuck because of carbon build-up in the socket due to exhaust gas leakage. We had to pull out the entire cylinder cover and still took us a week to pull the injector out.
Sound just like Joe Pera
Imagine that you drop some metal object into the socket hole accidentally
Over 50K people watching a video on fuel injector maintenance. Must be 50K mechanics... like me. Thanks Chief.
Back in the early 1980's I worked on drilling rigs in a natural gas field. One rig was built in 1942, all mechanically driven. The 2 main engines were huge V12 Waukesha diesels, I loved crawling around that thing doing the maintenance.
They don't build anything like that any more. Today it's planned obsolescence.
Manufacturing is far better these days
But no one does any scheduled maintenance these days
Just run it till it dies
I mean we should prob be changing the injectors on all engines at 2000hrs but no ones going to do that, everyone's running them to 5000hrs till they die and drop the tip into the chamber and fuck uo everything else then blame the manufacturer
And don't forget in the 1980s that engine was only 40yrs old
So stuff made in the 1980s still running today has done just as well and there's alot of 80s machines and cars getting around
Their is one account of a maintenance crew on a ship allegedly forgot a maintenance crew member was inside a ship's engine block seeing no one told him to come out they sealed the maintenance entry port and fired up the engine later reporting a missing Man he much Likened unto early history torture such as the brazen bull 🐂 was Roasted alive exposed to pressure's positive and negative vaccum and searing Heat until dead it makes one wonder 🤔 if the crew punished him for some odd trespass against them?
Where can I find this account?
Love watching the "Mechanicals" of a big ship. The size and mass is just incredible.
and you dont want to drop it on your foot either.
Thanks chief, I really like these tech videos, very interesting seeing the details on the big ship systems, and how you folks keep it all running. You are true professionals.
Safe travels!
Great stuff Chief. Can your engine operate with one cylinder inop or would the vibration/imbalance be too great?
my thoughts also
Yes you can cut supply to one cylinder but at a lower load
Yes you can turn off cylinders in big ships for maintenance while the rest are working.
@@kevm7815 I don't think you can pull out an injector while the engine is running at full speed though, the pressure of the air blasting up thru the cup would make this job super dangerous and impossible to clean and lap the injector cup mating surface properly. Sure, on ships with hydraulically actuated exhaust valves you could hold the exhaust valve open longer to kind of act like a compression release on a lawnmower engine, but you there's no way to stop scavenge air from being blasted into the cylinder you're working on every time that piston hits bottom dead center and the piston uncovers the scavenge air ports. While the ship is underway at "Navigation full" speed, the scavenge air pressure is crazy high compared to even a supercharged Dodge demon.
@@brnmcc01 We have engines now that have control gear to actually shut down cylinders in turn in a set sequence, so a 9 cylinder engine at slow speed can operate effectively as a 4 cylinder engine, these big engines when turning very slowly on 9 cylinders use very little fuel and it can be difficult to actually get the cylinders to fire properly, so by working as a 4 cylinder, more fuel is injected into less, so helping the cylinders to fire effectively, run smoother also helps with the emissions as well.
Brings back memories of changing injectors on UK railway locos. One of my jobs was testing and setting up injectors on a Hartridge testing rig. we used Fucious oil as a test liquid as it had the same properties as fuel oil but without the hazard of possible skin problems.
Awesome stuff Chief, question the tools you guys use such as the injector puller and the lapping tool is that custom built by you guys or do you get it from a manufacturer? Keep the maintenance videos coming love them. Thanks Chief.
They are all from manufacturers 🔧
Are there two fuel injectors per cylinder for redundancy or are both required for proper operation?
While I haven't worked on slow speeds my guess is that there is a smaller injector for use at lower loads as the larger injector at low load would normally create a mixture that's too rich.
cyl displacement is large, otherwise it would need one very big heavy injector. two smaller ones can do the job
Every time I see these engine rooms I reflect on the pride and attention to detail. The crew must really care.
Can you please do a ship’s workshop tour
I had an old 1940s navy book how they would even show the smelting metals in electric furnaces and casting pump housing etc of parts on-board the ships workshop when they didn't have the parts available and in the middle of nowhere..unbelievable stuff..
I've done a bit of this as a hobby and found it fascinating reading.
It's amazing how large the parts are, especially compared to automotive/light truck!
Well, it is an engine that comes from the factory with walkways on both sides, and also with 3 levels of them as well, plus ladders. With hatches for inspection, that allow you to walk through, and see the engine from the inside as well without needing a borescope.
A comment and a question: Had I known about this job field as a kid, and had I known where my natural interests would eventually take me, I would have enjoyed being a ship's engineer. Great video, Chief! Now, about your name: I understand that a mako is a type of shark. Why do you capitalize "MAKO" and then use a lower-case "i" at the end? Is your name Makoi and you are stamping the shark image on top of that? If so: very clever. Or is there some other reason for the lower-case "i" at the end? Please explain. If you have already, please link to that older video. THANKS!
Now i want to know too!
its a common filipino nickname. sometimes spelled makoy. nickname for ferdinand or mark or something
Chief: Doing an equivalent job on land in the USA, locks and tags would have to be applied to the fuel pump and the valve to that cylinder, as well as to the main engine. Do you use similar procedures?
Yes. I just forgot to shoot a clip of that.
Thank you Chief, love this type of episode!
Great Video.. Are you the only crew member that speaks English?
why do automotive injectors go 500,000k with no servicing?
Because they run much cleaner fuels
Even with all the high tech available these days, it still takes guys with wrenches to keep everything running smoothly! 👍👍
The same can be said a hundred years ago, and will continue to be said in the future.
Very interesting, so there' no copper seal between the the injector nozzle and the seat as in automotive injectors? Are these pintle valve injectors? How do you mitigate grinding paste entering the cylinder? Thanks for the video, from an ex long time auto mechanic (VAG). Edit: I guess the torque value is corrected for the extra radius applied by the crow's foot wrench?
I would guess that on an engine that size the lapping paste is about as bad as the carbon particles and bunker oil crud lol
And I would expect that the torque specs include the offset specs for the proper crow's foot wrench.
Though it suppose the exact torque isn't as critical as head bolts or something, so maybe it just assumes that most crows foot wrenches are about the same length.
Those look like pressure activated injectors, like the type Mercedes used until 1991 or 1992.
I was worried about the grinding paste too.
Torque on a body is irrespective to where it is applied. You need a fulcrum to convert torque into a force. The fulcrum in this case is the rotational axis of the fastener and that is constant. It is indeed remarkably counterintuitive that the geometry of the wrench is irrelevant.
@@Tadesan The torque wrench measures the torque at its fulcrum which is different than the fulcrum of the crow's foot wrench. However because they're close to each other compared to the length of the torque wrench it doesn't really matter
@@Tadesan you missed the fact that adding the crow's foot wrench adds a second fulcrum, and so the torque that the wrench sees is different than the torque that the nut sees.
Imagine if the crow's foot wrench were 3 feet long from centerline of the fastener axis to centerline of the ratchet axis, and you can see how the leverage of the added length will reduce the force that the ratchet sees.
It will also change the force the ratchet sees depending on whether the crow's foot is straight out the front, in line with the ratchet (maximum leverage), or at a 90 degree angle to it.
So while the geometry of the wrench doesn't matter, the length of each section of the levers used matters very much, and using a crow's foot wrench adds a second lever and a second fulcrum as compared to using a single wrench or a socket, and so adds a lot of variability to what the fastener sees compared to the amount of force applied on the end of the handle.
Great video! My job has absolutely nothing to do with ships or engineering, so I have no idea why I find this stuff so fascinating.
That's easy, it's phoning BMW afterwards and getting them to code the injector to the ECU that's difficult..lol
Now that’s an injector!! Love these tech videos chief.
Question: why do the engineers wear white overalls. They’re dirty within 5 minutes after starting there shift.
I would think dark grey , dark brown or even black overalls would make the guys look ‘clean’ a bit longer !
Thanks :-))
These throw-away overalls are made of Tyvek, and Tyvek is white
Could a downside with Grey/Brown/Black overalls be that it will be harder to see when they get too dirty and need to be washed or swapped out? / B.
@@mbo191 An additional downside with grey/brown/black is that it would make the wearer harder to see.
@@beeble2003 - You are absolutely right, I didn't think about that. / B.
Tradition mainly, they can be all colors now. Originally on steamships the boiler suite was white cotton, white reflects heat from an open furnace, also cleanliness, to keep them whiteish they need washing frequently, a clean cotton boiler suite if driven into a bad wound is less likely to cause a bad infection, no dyes either. Remember we can be weeks away from a doctor or hospital. also frequent washing removes the smell of sweat. We still prefer cotton even if colored, as in a flash fire it doesn't melt, it scorches, but doesn't melt into the skin.
1/2 an hour seems quick, it would take me 10 minutes to find the first bolt in the schematics and then get it wrong once or twice.
I would have thought that the spark plugs and tire inflation ... meh ...
My question is does it matter if the lapping compound goes down into the cylinder?
I was wondering this too, plus all the spraying they did down there that went into the cylinder as well. I'm guessing it just gets burned up/expelled with the first piston cycle when they turn the engine on.
Chief you are the best teacher anyone could have if having interest in the life at sea.
I love seeing all the tools you guys use. Some of the specialty tools are neat
I agree on the tooling quite different than us snap-on users
Can you imagine the cost of a snap-on spammer big enough for those pipes 🤣 house mortgage per spanner.
Did you see the bow on that jacking tool?
Someone has had to apply some serious pressure at one stage to remove an injector.
Greatly appreciated observation brother
Can you imagine a Snap-On / Matco / Mac, et al tool boat pulling up to ships in harbour or anchorage areas??? LoL!! 🤣
How old is this engine please Chief Makoi? Origin?
God bless you.
once again know nothing about ships and enjoying every minute!
back in the day, the chief sat in his cabin and checked the fuel consumption. the real work was done by 2nd eng. Never let the chief touch any tools or controls...
Great video, well done. Do you know anything about brakes? 🤣
Chief, i need request from you, maybe next time explained air compressor 1 stage and 2 stage, what different works, what usually used in ship
Love those old style wrenches Chief Makoi proper tools aye could eat dinner off that engine.
What is the expected service life of an engine like this?
10-25 years. It will generally outlast the ship. Most of the time, the main engine is running well enough to ram the ship at full speed onto the beach at Alang, India to be scrapped...
If there’s a main engine failure while underway is there auxiliary power to at least keep the ship pointing into the weather while repairs are made?
2 engines, plus separate diesel generators that provide electric and hydraulic power, plus heat to keep the bunker oil liquid enough to flow.
Always the best, most informative videos from Chief MAKOi, no matter what the subject of the day!
Two injectors per cylinder? At least you guys have good access, as compared to aircraft engines (which are often very cluttered to get the cowlings fit as tightly as possible).
Quick easy job worked on the same engine we usually cover the injector body in MoS2 never had an issue getting them out.
Or Coppaslip!
Big diesel, BIG injector! Informative video, enjoyed it.
Nice, i dont think you answered this but were the engine running while repairing, or can it be running while youre switching these kind of parts?
On heavy truck diesel engines...........10,000 hours would be what most operators would expect from injector nozzles. The major problem has always been that OEM fuel filters are only 60% efficient at their micron rating. But new aftermarket products are on the market, widely used by transport and mining industries that are 99% efficient at 2 micron, and so injector contamination and even rust from dissolved moisture (always present in petroleum fuels of all kinds) has been eliminated.
Amazing how you can explain all this. Do they engineer the systems for easy access to parts? They don't do that with modern cars but I bet they are more sensible with ships.
They can do that on modern cars if you want it the size of a ship.
Thank you for making these episodes. I only speak for one sub, but all the technical things fascinate me. I would go down to my local merchant marine school right now, tonight. I don’t think they’re interested in a 65 year old. Too bad. Your world is very cool for a gear-head.
all this took half an hour? impressive.
How much pressure the injector pushing to the cylinder?
Can you replace the injector while the engine is running??
I have that same question, can the injector be replaced while the engine is running? Would you stop the M/E while at sea? If not, why wasn't there air being pushed out the injector hole on each up stroke of the piston?
Interesting video as usual Chief, having loaded grain before and getting told to change sides. It would be interesting to see how its calculated
Hi Chief!
That video sure did bring back a few memories.
Hey, thanks for the instruction, you just never know when you might be on the side of the road, needing to overhaul an injector! LOL
Thank you so much for these videos...I'm a car machanic but still wounderd how the parts look and maintenance is done on them ...much respect and admiration...may the wind always be in your sails my good sir
Where does all the lapping stuff go? Can you get it all out?
pa shoutout next video idol makoi..😊😊
god bless 🙏🙏🙏
big stuff is easier to work on not like diesel pickup you cant see injector good vid chief
Time to train your guys to use the correct socket to set that torque, using the adjustable nut rounder is not the right way, as those nuts clearly show rounded corners from long use of that tool. That spanner with set and ring end, probably 24mmAF, should be in the tool case already, and available to them. As well get a few crow foot spanners for the union ends, they will make undoing those unions easier, and slip over the pipe and then down, giving at least 4 contact points to grip the hex of the nut, so lessening it distorting.
Adjustable spanner is great for emergency use, but for this kind of work you really should have the right tools in the set, as after all a broken nut will cost you a lot more than the cost of the nut to replace it.
Yep, as cadet marine engineer we we were never allowed to use shifting spanner. Big trouble if you were cought carrying such a tool!😬
Couple of questions.1) do you shut down the engine for the six hours it takes to change all of the injectors. 2) if you don't aren't you worried about running the engine lean. 3) do you carry an extra injector for every injector.
You can't change the injector with the engine running! The engine always runs lean, it is a diesel. Multiple spares carried. 👍
Are the special tools (like the injector jack) sold with the ship after being built or bought elsewhere?
Thanks Chief, great video.
I love these maintenance videos, but an unrelated question crossed my mind: who does the laundry? Do you guys have to wash your coveralls while on a voyage or do you have a good supply of clean ones on board and get fresh ones when you go into port?
Another extremely interesting video.
Hi from uk Chief MAKOi👋👍 great to see another service interval upload, I love watching you and crew maintain!👍 great job by the crew💪👌 am just curious do you have a yellow check engine light😂😵😂😂😵 (just kidding I know you do😂) I wonder how much you atomize at every fire cycle tho (probably half 1/3of my cars fuel tank(😂😂) lol have you ever had a engine failure at see? How did you get round problem if so? and hope your fourth got his new title from cadet on his test from couple uploads bk 👌👍 thanks for your time and be safe see you soon👍👋
Not much changed memories of mid 1970's with BP Tanker Co
I wonder if there are any third-party aftermarket racing injectors for this ship 🚢 to produce massive black smoke and exhaust flames…
Chief,
I'm curious if - on each subsequent engine design - the companies take notes from engineers on how to make their engines easier to work on? It always seems like, despite the size of the engine, everything is cramped together.
Is there anything on the engines and machines you work on that continuously frustrates you with poor design, considering that they "know" that you'll have to do maintenance on it?
I'm reminded of a car that I worked on where you had to remove several things just to get the battery out.
Nice video👍
Thank you Chief, very interesting video. What engine model was this?
What is the max engine RPMs on that thing? The largest locomotive engine I used to work on was a 16 cylinder, 645ci per cylinder and its max rpm was 900. But it powered the generator only. I'm not sure if ships are direct shaft driven or gen/electric like locomotives.
(retired captain)⚓⚓You guys are awesome thanks for sharing⚓⚓
A bit larger than the ones in your car.
BTW a motor are not a motor before a person can comfortably stand on top of the piston, move around in comfort in the crankcase, and with a little MASSIVE sweating and a lot of air, crawl around in the exhaust manifold.
And if it go more than 100 RPM,,,,, well its just a toy.
BTW on Torm Kristina we had a hole burned strait thru the valve,,,, and mind you inside the valve seat, and large enough for my little finger ti fit in it. 😮
All hands on deck to fix this,,,, actually i even think i saw the chief engineer in the "hole"
Chief questions lang. Ano-ano ba mga requirements or mga dapat gawin kung gusto sumampa ng barko. Cargo or tanker. Basta international. Okay lang ba kahit wala kang basic maritime course?
Yung mga trainings na needed para maging OS sa mga cargo/tanker.
Salamat Chief. Sana mabasa mo ito.
Ingat and god bless.
we used to call the folks in white overalls 'baker' - you could run around in grey, blue, red, orange overalls - but not in white...
I'll just say this. Drag teams get the car in pits, dissassemble the engine COMPLETELY and reassemble it all in just a few hours.
If you had a team of well seasoned mechanics, you could get a major service done on one of these engine in less than a day.. filters, oil, injectors, anything that doesn't need a massive lift. And possibly even that.
Hey cheif... you need to redesign that injector seat. The build up occurs because of pressure in the cylinder and then cooling heating cycles as well expand and contract the metal. Maybe a gasket would help. The whole engine should be redesigned but some war monger oil companies dont like me very much. A lot of resistance from australian government. Greek shipping, lots of diesel in those ships. Melbourne australia diverted a lot of attention away from my evidence, courts, police, medical, communications, drugs, entertainment, media.... covid lockdown. Fraud. Some people in melbourne claiming everyones loot. Post office, drug dealer core... shappel corby council baggage handlers.... massive corruption... pubs clubs, brothels, gambling. Everyone dying and they are preventing any releif in order to protect their ill gotten loot. People being denied any justice because those groups paranoid its against them. All a big staged show.
Hello sir! passer po ako this year PMMAEE, ask ko lang sir kung pano maging PCG or NAVY as a cadet?
Why no cordless impact guns? This was painful to watch. Also how do you keep the lapping compound out of the bore of the engine while lapping the new injector?
Shifters seem to be used a bit more than I'd like. Looked bad when nipping up the injectors
From the vid I think torque is a little off. From previous training the crows foot or adapter should be 90 from wrench or torque recalculated with the adapter length.
Thanks for sharing Sir
Not exactly a toy are they. The filtration system for the fuel oil must be very well designed, I still find it hard to believe they run on such crude oil. Thanks for the video, how about a crankshaft replacement ? I jest of course - hopefully.
Polishing the surfaces is good, but how do you clean the abrasive compound from the engine itself, they just flush it inside the engine? But that's gonna ruin the engine...
My old boss and I got into an argument about not having an annual Maint. shutdown. He wanted to have a "slowdown" instead...
WTF??? I told him there are two kinds of shutdowns... Planned and unplanned. We got our shutdown. But he never really forgave me for doing that in front of the staff... Oh well,
Relatively speaking that is a small injector! Not much larger than an emd which is a lot "smaller" lol
I though ship injectors were like 4 ft long.
Does the new Junior Mechanic ever get asked to fetch the Metric Adjustable Spanner 😄 ?
How do you keep the grit from the lapping compound out of the cylinder? It looks like all the gunk is being flushed down into the combustion chamber area?
Wait how big & exactly what psi. Ratings can be reached with these Giant diesel engines they say the fuel injectors from commercial trucks can spray fuel thru a 2×4 piece of lumber or else the secondary Question what sort of compression values are reached on these Giant motors
Hey man, I'm super interested in becoming one of these mechanics as a career. Would you mind giving me a little insight as to the process of your schooling/certification?
Hearing Filipino words "lagyan mo ng langis ah..." ( Put oil on it)... Kabayan!
Chief, are your videos used for instruction at your alma mater or with newer crew members? It seems like they’d be very useful for introduction to various operations.
Chief, why don't technicians use any sort of power tools? Their land based counter parts can't be bothered to turn an actual wrench anymore since battery operated tools have became so popular/available/affordable.
What does the color on the overalls mean?
I am curious. Are the injectors replaced while the other five cylinders propel the ship? Or is the engine not running during the work?
Direct fuel injection will definitely turn up the heat on these big boys
How do they keep the lapping compound from getting into the cylinder while cleaning it? Seems like even a little of that getting in there would cause major issues.
Outstanding, as ever. This is very basic but why do some of staff wear white boiler suits?
Anything is a fuel injector if you are brave enough.
Please don't fill U tube with these professional Informations
next time you are in Astoria OR shoot me a message.
we'll drink coffee together if u have time.
So what happens to the dirt and lapping compound? Is it blown into the cylinder?