very good veido however I know I am late in here but I will give you a small correction on the EMD prime movers for the valves there is 4 exhaust valves and a fuel injector in the middle and there is two springs in between the valves are bridge rocker spring ( later model will be hydrallique damped )
I noticed that every door seemed to have a house air filter, Where is the air taken in on a locomotive? Does it go through an air filter like a car or does it intake air from the engine room?
@abeemanator I belive that the air intakes are just drawn directly from the engine room air, and hence have to pass through the filters. The engine is fed air by root blowers, so I'm not exactly sure where the intake is.
The intake air for the engine is drawn from the engine room. The engine room is sorta/kinda filtered through the filters in the doors called 'carbody filters.' The engine air intakes at the blowers further filters the air as it goes into the engine, either through a paper filter media, fiber glass, or oil bath. Newer engines (new as in GP30 onwards) have all their initial filtration through an inertial filter.
From what I understand (I may be completely wrong), one valve is for fuel, and the other six are for exhaust. Being that it's a two-stroke, pressurized air is pumped into the cylinder from the scavenging ports at the bottom, as the piston clears. It is also possible that the scavenging ports, and exhaust valves are open at the same time, to clear exhaust fumes more effectively, and therefore greatly increasing fuel efficiency. I'm not an expert, so don't take everything for fact...
@TankCrusher210 yup, thats pretty much as I understand it. The roots provide positive pressurization, and as the piston reaches BDC, the cylinder wall ports are exposed, the pressurised air scavenges the cylinder, and before the ports are covered on the upstroke the exhaust valves close, and each cylinder then gets a little precharge before the ports are again covered
If you starting in less than a minute you must not know you need to blow down all 16 cylinders, we run on a mountain line and are required to check and clean the carbon traps before each run and write we did so on our shut down report.
@myamazingworld There are not that many steps. I could have started that unit in less than a minute. I guess they perform their own maintenance. We have mechanical personnel to do all Level 2 and higher maintenance. I am glad I don't have to run GP9s. A musuem is a good place for such old power.
@and0243 Yeah, this locomotive is 51 years old. Every diesel used to need this kind of prep before starting. The process actually took about 1/2 an hour, but i cut out most of it. Autostart sure is a vast improvement over these manual starts.
very good veido however I know I am late in here but I will give you a small correction on the EMD prime movers for the valves there is 4 exhaust valves and a fuel injector in the middle and there is two springs in between the valves are bridge rocker spring ( later model will be hydrallique damped )
Merci.
frenchelectrican1 4 weeks ago
very interesting, well done
graverobber35 3 months ago
Love EMD
tubatriplett 3 months ago
i admire your work sir!
derneuschooer 5 months ago
Thank god I don't have to go through all that to start up my truck.
LycoValleyRRFan 11 months ago
7:22 I was thinking: Hell', its a steam loco! hehehe
13Anko 1 year ago
I noticed that every door seemed to have a house air filter, Where is the air taken in on a locomotive? Does it go through an air filter like a car or does it intake air from the engine room?
abeemanator 1 year ago
@abeemanator I belive that the air intakes are just drawn directly from the engine room air, and hence have to pass through the filters. The engine is fed air by root blowers, so I'm not exactly sure where the intake is.
Locomotive450 1 year ago
@Locomotive450
The intake air for the engine is drawn from the engine room. The engine room is sorta/kinda filtered through the filters in the doors called 'carbody filters.' The engine air intakes at the blowers further filters the air as it goes into the engine, either through a paper filter media, fiber glass, or oil bath. Newer engines (new as in GP30 onwards) have all their initial filtration through an inertial filter.
seth4404 10 months ago
Another awesome video.. Just plain cool! This guy's very knowledgeable, great to see that he's taking care of the locomotive more than properly.
WMkid 1 year ago
From what I understand (I may be completely wrong), one valve is for fuel, and the other six are for exhaust. Being that it's a two-stroke, pressurized air is pumped into the cylinder from the scavenging ports at the bottom, as the piston clears. It is also possible that the scavenging ports, and exhaust valves are open at the same time, to clear exhaust fumes more effectively, and therefore greatly increasing fuel efficiency. I'm not an expert, so don't take everything for fact...
TankCrusher210 1 year ago
@TankCrusher210 yup, thats pretty much as I understand it. The roots provide positive pressurization, and as the piston reaches BDC, the cylinder wall ports are exposed, the pressurised air scavenges the cylinder, and before the ports are covered on the upstroke the exhaust valves close, and each cylinder then gets a little precharge before the ports are again covered
clank4001 1 year ago
If you starting in less than a minute you must not know you need to blow down all 16 cylinders, we run on a mountain line and are required to check and clean the carbon traps before each run and write we did so on our shut down report.
2353Engineer 1 year ago
Great video! I never knew there were so many steps to start one. Love the shot of the valves working. Something you don't see everyday.
myamazingworld 1 year ago
@myamazingworld There are not that many steps. I could have started that unit in less than a minute. I guess they perform their own maintenance. We have mechanical personnel to do all Level 2 and higher maintenance. I am glad I don't have to run GP9s. A musuem is a good place for such old power.
and0243 1 year ago
@and0243 Yeah, this locomotive is 51 years old. Every diesel used to need this kind of prep before starting. The process actually took about 1/2 an hour, but i cut out most of it. Autostart sure is a vast improvement over these manual starts.
Locomotive450 1 year ago
Wow well done and great tables.
2353Engineer 1 year ago