Overhauling Our Ship's Generator Engine part 1| Seaman Vlog

Summary

The video script details a meticulous 10-day engine overhaul process aboard a ship. It focuses on the number three generator engine, involving the disassembly of hundreds of parts including cylinder covers, pistons, and valves. The narrative emphasizes the importance of careful planning, preparation, and coordination. The team meticulously cleans, replaces worn components, and checks for cracks, concluding with a thorough cleaning and re-lubrication of the engine. This technical procedure is made accessible by the crew's expertise and prior review of engine schematics, promising a continuation of the overhaul journey in subsequent videos.

Takeaways

• 🛠️ The script describes an engine overhaul process, specifically for a ship's number three generator engine.
• 🔧 The overhaul involves dismantling and reassembling hundreds of parts, requiring careful planning and coordination.
• 📅 The process is expected to take about four to five working days to complete.
• 🧰 The cylinder covers and pistons are key components that will be removed, cleaned, and have worn parts replaced.
• 🔄 The piston rings will be replaced, and the piston crowns will be cleaned or carbonized as part of the maintenance.
• 🔍 A crack check will be performed on the piston crowns, connecting rods, bolts, and bearings to ensure safety and reliability.
• 💧 Old lubricating oil will be drained from the crankcase, and the engine will be cleaned and refilled with fresh oil.
• 🔩 The script emphasizes the importance of organizing small parts like nuts and bolts to prevent loss or confusion.
• 📚 Engineers have prepared for the task by reviewing schematics and planning the course of action before starting the overhaul.
• 🛑 Electronic parts, such as thermocouples for exhaust gas, need to be disconnected before proceeding with the engine disassembly.
• 🔧 The hydraulic nuts securing the cylinder covers require special attention due to the high torque needed for their removal and installation.

Q & A

What is the purpose of the overhaul of the number three generator engine?

The purpose of the overhaul is to dismantle, clean, replace worn or damaged components, and ensure the engine operates efficiently and safely.

How long is the estimated time to complete the overhaul of the generator engine?

The estimated time to complete the overhaul is about four to five working days, depending on conditions.

What is the first step in the overhaul process described in the script?

The first step is to loosen all the attachments before pulling out the bigger parts and disconnecting some electronic parts like the thermocouples for the exhaust gas.

Why is careful planning, preparation, and coordination required for the overhaul of the generator engine?

Careful planning, preparation, and coordination are required because the job involves dismantling hundreds of parts, ensuring that none are lost or mixed up with parts from other cylinders.

How are the dismantled parts managed to avoid confusion during the overhaul process?

The dismantled parts for each cylinder are collected in marked containers to ensure that parts are not mixed with those from other cylinders.

What components are removed from the cylinder covers for cleaning and replacement?

The components removed from the cylinder covers include the exhaust and intake valves and the fuel injection valves, which are cleaned and replaced as necessary.

What is done to the piston rings and piston crowns during the overhaul?

The old piston rings are removed, the piston crowns are cleaned or carbonized, and new piston rings are installed. A crack check is also performed on the piston crowns and connecting rod.

What is the procedure for dealing with the old lubricating oil from the crankcase?

The old lubricating oil is drained from the crankcase, the crankcase is cleaned, and then it is refilled with fresh lubricating oil.

How are the cylinder covers secured to the engine frame and how are they loosened?

The cylinder covers are secured to the engine frame by nuts tightened with intense torque. Hydraulic pressure is needed to release or tighten these nuts.

What is the significance of the engine Workshop in the overhaul process?

The engine Workshop is where the cylinder covers are taken for further dismantling of components like intake and exhaust valves and for cleaning the internal chambers.

What is the final step described in the script for the overhaul process?

The final step described is assembling everything back to its original state after all parts have been cleaned, replaced, and checked for cracks.

Outlines

00:00

🛠️ Overhauling the Number Three Generator Engine

The video details the process of overhauling a generator engine, which will take about 10 days. The task involves dismantling hundreds of parts, including the top covers, cylinder covers, and pistons. The process includes removing and cleaning the exhaust and intake valves, replacing piston rings, and conducting checks on various components. The old lubricating oil is drained and replaced. The entire job is expected to take around four to five working days.

05:08

🔧 Dismantling Small Parts and Cylinder Covers

Engineers begin by dismantling small parts like nuts, bolts, and electronic components. The rocker arms and fuel injectors are also removed. Care is taken to avoid losing any parts, with dismantled components stored in marked containers. The cylinder covers are secured with hydraulic nuts, requiring hydraulic pressure to release. Once removed, the cylinder covers reveal the carbon-covered piston crowns.

10:12

🧰 Loosening Piston Rod Bolts and Initial Cleaning

The connecting rod, composed of a piston rod and bearing caps, is loosened to disconnect the piston rod from the bearing caps. Initial cleaning of the piston crown is performed with a wire brush. After loosening and removing the bolts, the pistons are pulled out and placed on racks for easier handling. The overhauling process is manageable with proper education, training, and experience. The next steps will involve removing cylinder liners and bearing caps.

Keywords

💡Overhaul

An overhaul is a comprehensive examination and repair process. In the video, the term refers to the detailed process of dismantling, inspecting, cleaning, and reassembling the number three generator engine. This involves handling numerous components like the cylinder covers, pistons, and various small parts to ensure the engine operates efficiently.

💡Generator Engine

A generator engine is a type of engine used to generate electrical power. In the context of the video, the crew is tasked with overhauling the number three generator engine on their ship. This engine is crucial for providing power, and its maintenance involves dismantling, cleaning, and reassembling its parts.

💡Cylinder Covers

Cylinder covers are components that enclose the cylinder head of an engine. They need to be removed to access the pistons and valves. In the video, removing the cylinder covers involves loosening hydraulic nuts and disconnecting various attachments like the rocker arms and fuel injectors.

💡Pistons

Pistons are cylindrical components that move up and down within the engine's cylinders, playing a critical role in the combustion process. The video details the process of removing the pistons, cleaning the piston crowns, replacing the piston rings, and checking for cracks.

💡Fuel Injectors

Fuel injectors are devices that introduce fuel into the combustion chamber of an engine. In the video, these injectors and their attachments must be removed before the cylinder covers can be taken off, highlighting their role in the engine's operation and the complexity of the overhaul process.

💡Hydraulic Nuts

Hydraulic nuts are fasteners tightened using hydraulic pressure to secure components with high torque. In the video, these nuts secure the cylinder covers to the engine frame and require hydraulic pressure to be loosened during the overhaul.

💡Lubricating Oil

Lubricating oil reduces friction between moving parts in an engine, ensuring smooth operation. The video mentions draining old lubricating oil from the crankcase, cleaning it, and recharging it with fresh oil as part of the overhaul process.

💡Crankcase

The crankcase is the housing for the crankshaft in an engine. It contains the lubricating oil and provides support for various engine components. In the video, the crankcase doors are opened, and the old lubricating oil is drained during the overhaul.

💡Exhaust Valves

Exhaust valves control the release of exhaust gases from the combustion chamber. The video explains that these valves are removed, cleaned, and inspected for wear and damage during the overhaul of the cylinder covers.

💡Thermocouples

Thermocouples are sensors used to measure temperature. In the video, thermocouples for the exhaust gas need to be disconnected before removing the cylinder covers, indicating their role in monitoring engine conditions.

Highlights

Scheduled overhaul of generator engine number three is underway.

The overhaul involves dismantling hundreds of parts, including top covers, cylinder covers, and pistons.

Exhaust and intake valves, as well as fuel injection valves, are removed, cleaned, and replaced as needed.

Old piston rings are replaced with new ones, and the piston crowns are cleaned and checked for cracks.

The connecting rod, connecting rod bolts, and bearings are inspected and maintained.

Old lubricating oil is drained from the crankcase, which is then cleaned and refilled with fresh oil.

Careful planning and coordination are emphasized due to the large number of small parts involved.

Parts from each cylinder are stored in marked containers to avoid mixing.

Engineers use schematics and a well-planned course of action to facilitate the overhaul.

Hydraulic pressure is required to loosen the hydraulic nuts securing the cylinder covers.

Cylinder covers are taken to the workshop for further dismantling and cleaning of the internal chambers.

Initial cleaning of the piston crown is performed using a wire brush before further inspection.

The overhaul process is systematic and relies on the engineers' training and experience.

All pistons were successfully removed in approximately six working hours.

Future tasks include removing the cylinder liners and bearing caps as part of the complete overhaul.

Transcripts

[Music]

foreign

[Music]

port and is currently underway

[Music]

it will take about 10 days before we

reach our next destination

this gives us plenty of time to carry

out the scheduled overhaul of one of our

generator engines

it is a job that involves dismantling

hundreds of parts so careful planning

preparation and coordination is required

[Music]

so today we are scheduled to overhaul

our number three generator engine

so when I say overhaul that means we'll

be removing all of the top covers the

cylinder covers

and also the Pistons

for the cylinder covers we will later on

dismantle them remove the exhaust and

intake valves and the fuel injection

valves clean them and replace the

components that need replacing

as for the Pistons we will take out the

old piston rings clean up or the

carbonize the Piston crowns and replace

the old piston rings with new spares as

well as do a crack check on the Piston

crowns and also for the connecting rod

connecting rod bolts and also the

bearings

and then we will drain all of the old

Lube oil from the crankcase

clean it and then recharge it with fresh

lubricating oil

after that we will assemble everything

back to its original state all in all

this will take about four maybe five

working days depending on the conditions

but I'm pretty sure we'll be we'll be

able to finish it in about four days

so

let's check it out

as mentioned earlier this job involves

dismantling many parts and a lot of them

are small Nuts and Bolts

so before we get to pull out the bigger

parts we need to loosen all the

attachments first

we also have to disconnect some

electronic parts mainly the

thermocouples for the exhaust gas

before we could take out the cylinder

covers we will need to dismantle the

rocker arms as well as the fuel

injectors and its attachments

for each cylinder alone we will already

need to dismantle dozens of small parts

so we need to be very careful not to

drop or lose any of them

as you can see we collect all the

dismantled parts for each cylinder in

marked containers so as not to mix Parts

with the other cylinders

the sheer number of small parts might

seem intimidating but for us Engineers

we have studied this in school and for

the more experienced ones we have done

this many times over the years

also days before starting the overhaul

we have already reviewed the schematics

and planned our course of action

simultaneously the crankcase doors are

opened and the old lubricating oil is

suctioned out of the sump tank and

drained into the sludge tank

foreign

once the rocker arms and fuel injectors

and other attachments are removed from

the cylinder covers it's time to loosen

the hydraulic nuts

the cylinder covers are firmly secured

to the engine frame by nuts that are

tightened with intense torque

hydraulic pressure is needed in order to

release or tighten these nuts

foreign

now we are ready to pull out the

cylinder covers

the cylinder covers actually take the

most time during dismantling and

assembling as they have a lot of small

attachments as we have seen earlier

but once the cylinder covers are ready

to be lifted it's all downhill from

there

as soon as the covers are lifted we can

already get a glimpse of the surface of

the Piston crown

as you can see it's covered in carbon

the cylinder covers will then be brought

to the engine Workshop

there the intake and exhaust valves will

be dismantled and the internal Chambers

cleaned

now it's time to loosen the Piston Rod

bolts

foreign

the connecting rod is an assembly

composed of a piston rod and the bearing

caps

so for the purpose of pulling out the

Piston we only need to loosen the Piston

Rod bolts and disconnect the Piston rod

from the bearing caps

foreign

while loosening initial cleaning of the

Piston Crown is done using a wire brush

after the bolts are loosened and removed

the Pistons are now ready to be pulled

out

foreign

[Music]

the Pistons will be placed on the rack

where they will be easier to work with

overhauling the generator engine might

seem like a complicated task but proper

education training and experience will

make it quite easy

from the time that we started

dismantling we managed to pull out all

the Pistons in about six working hours

foreign

we will continue with the overhaul and

I'll be showing you how we remove the

cylinder liners and the bearing caps as

well as the other remaining tasks

involved in the overhauling of the

generator engine

[Music]

thank you for watching and stay tuned

for the next one