@kdlehel I've never worked with EMD engines but two-strokes are inherently more efficient than four-strokes. If they aren't it's the fault of the designer.
There's a reason every single oil tanker, container ship and bulk freighter in the world uses uniflow two-stroke diesel engines. Every. Single. One... And it's not because the shipping companies fancy the sound!
@joffeloff the eficienciency what is not. A four stroke engine fuel cunsumption is much lower and has more torque. if you learned phisics there is shown how realy works a four stroke engines. Makes more rotation the cranskshaft in 1 cykle. Here all 2 stroke engine was dumped and ONLY four stroke mostly turbocharded locomotives are in use. Here we talk about locomotives an not ships. For ships is an other story.
We here are based by 4 stroke engines they shown totaly they force, stability.
Awesome sound it makes me so sad to think that GM has sold all their devisions off like Detroit Diesel,Allison Transmission,EMD,Terex,Delco Remy these companys pioneered some of the best technology of the last century that is now taken for granted. They provided awesome value for money that has never been matched or will be again. I cant help thinking that the GM would be in a far better place if all these devisions were kept .
If the engine won't start you get to try again or start troubleshooting. EMDs are very basic engines, if they don't start the reason is usually obvious. As for electronic or remote starting, I worked on a pair which used to have the electronics but it was deleted for safety. EMDs should be monitored for the starting and warm up. I worked on one with electric starters. The turning rate was uninspiring. I've had very good luck with air start, so long as they are greased regularly.
the FDL engines are good in only one way. they sound good. but they are pure shit compared to GM engines. you don`t see many GE engines from the 60`s and 70`s in daily use today. because of their bad quality. but huge numbers of gm -engines from the 60`s and 70`s are still in daily use. and why that? because they are strong and reliable.
You are correct about the turbo drives. The red handle is the fuel rack. To start an EMD you bump the fuel and press the start button. The buttons he was pressing are the crankcase pressure switches. If there is a sudden build up of pressure the switches will shut down the engine. Why he's bypassing them is beyond me. I also take issue with his starting method. He pressed the start button too long which caused the fuel rack to buck. I'm also suprised the overspeed trip didn't engage.
Yes, that's bucking, or hunting. It's uneven governor oil pressure which can be caused by cold oil or starting at too high an RPM. EMDs can start at low RPMs and are sensitive to overspeed. The start button doesn't need to be held until the engine starts, the starter only needs to get the engine spinnning. The rack and starter system are not connected. Without manipulating the rack by hand, the engine will spin but not start.
Let me try to explain... First, he was controlling the gouvernor manually, to make sure that the engine gets diesel when he starts to crank, this because of bad starting batteries. An that's wy he allso rev up the engine a bit, to make sure it would keep running (a little to much if you ask me but...) The two buttons he is pressing is crankcase pressure switch (dont hav to press this in) and coolingwater pressure switch (this must be pressed inn, or the engine wont start)
If you have good batteries, the engine will start even without controlling the fuel rack handle manually, but then you have to crank the engine a bit to build up oilpressure in the governor first, before the governor is starting to controll the fuel rack... (sorry for bad english, hope you understand!)
Where is the coolant pressure sender on that engine? My coolant pressure sender was on the output side of the coolant pump housing. There, I didn't have any problem with low pressure so long as I had coolant in the system. Perhaps on air starts you can't run the starter so long because the engine will spin too fast and trip the overspeed. I had an inspector ask me to demonstrate the 'no rack' start and I couldn't get it to start, it would shut down on overspeed.
I don't know where the sender's located, The startup of the engine was a demonstration wich was given when we (a group of Norwegian traindrivers) were visiting the Danish freight company Railion in Denmark. The EMD locomotives I know from Norway does not have any of this switches (EMD 16-567C engines) Without "racking" the engine, I guess it takes about 5-10 sec of cranking to get the engine to start, and it will not come near tripping the overspeed mechanism on electric starters!
The only experience I have with air starters, is from a tugboat, with two 8-567C EMD engines. I worked there one week, when I was at junior highschool. Normal starting procedure was to manually operate the fuel rack handle. This two engines powered a single propellshaft, via a form of hydraulic converter gear.They actually used the overtrip handle to stop the engines, but those engines was equiped with a form of release-handle too, to tripp the overspeed manualy
To shut down the engine, I used the button on top of the governor. I can't remember the name but it released all the oil pressure holding the rack linkage. The air starters would overspeed in about 3 seconds. I would press the start button for maybe a second and then give the rack a quick bump. I figured I was starting the engine at about 250 to 300 RPMs. I love those engines. Easy to operate and easy to maintain.
TOP NOTCH ENGINEROOM!!!!
gmsd70mac 6 months ago
The 645 series of engines is the best thing GM-EMD ever built.
EMD645E 8 months ago
Que motor magnífico.
DiegoPalinskiRS 10 months ago
is that a alco
jayfine01 1 year ago
Awesome sound.
wilco325 1 year ago
What do those two buttons do he pressed right after start up?
jeb721 1 year ago
look up 710 emd.
theratfarmer 1 year ago
ohhhh comeee onnn!!! push the throttle handle all the way, not like a pussy!!! -.-"
zagi988zap 1 year ago
to bad to is 2 stroke.
kdlehel 1 year ago
@kdlehel No, THANK GOODNESS it's a two-stroke.. Twice the power (okay 1.8 times the power), twice the sound, twice the awesomeness!
joffeloff 1 year ago
@joffeloff well vary the fuel consumption too. Mostly 4 stroke if emd has any.
kdlehel 1 year ago
@kdlehel I've never worked with EMD engines but two-strokes are inherently more efficient than four-strokes. If they aren't it's the fault of the designer.
There's a reason every single oil tanker, container ship and bulk freighter in the world uses uniflow two-stroke diesel engines. Every. Single. One... And it's not because the shipping companies fancy the sound!
joffeloff 1 year ago
@joffeloff the eficienciency what is not. A four stroke engine fuel cunsumption is much lower and has more torque. if you learned phisics there is shown how realy works a four stroke engines. Makes more rotation the cranskshaft in 1 cykle. Here all 2 stroke engine was dumped and ONLY four stroke mostly turbocharded locomotives are in use. Here we talk about locomotives an not ships. For ships is an other story.
We here are based by 4 stroke engines they shown totaly they force, stability.
kdlehel 1 year ago
Du er jammen glad i tog du Mads!
turbo944s 2 years ago
645 V20 = The mother of all engines!
formidable38 2 years ago
God Bless the 645!
maz323se 2 years ago 2
Man i hate those damn water/oil button tripping at start up
csh80421 2 years ago
Awesome sound it makes me so sad to think that GM has sold all their devisions off like Detroit Diesel,Allison Transmission,EMD,Terex,Delco Remy these companys pioneered some of the best technology of the last century that is now taken for granted. They provided awesome value for money that has never been matched or will be again. I cant help thinking that the GM would be in a far better place if all these devisions were kept .
Deadlymover1976 2 years ago
Definitely agree! To bad GM stands for "Goverment Motors" today. A shame really.
Xx69roadrunnerxX 2 years ago
Comment removed
Deadlymover1976 2 years ago
i'm an engineman on the USS Lincoln...we work on 4 GM EMD 645-E5 Turbos...yes...they are awesome.
dcdean6388 2 years ago 5
My facility has an EMD 645E4 20 cylinder powering our emergency generator. I love the sound of that thing!!
fengineer08 2 years ago
All this talk makes me miss working on EMDs.
greyman001 2 years ago
LOL... you aren't the only one!
dodgeramb59 2 years ago
If the engine won't start you get to try again or start troubleshooting. EMDs are very basic engines, if they don't start the reason is usually obvious. As for electronic or remote starting, I worked on a pair which used to have the electronics but it was deleted for safety. EMDs should be monitored for the starting and warm up. I worked on one with electric starters. The turning rate was uninspiring. I've had very good luck with air start, so long as they are greased regularly.
greyman001 2 years ago
Long live the General Motors 2 Stroke Diesels!
aussietraindriver 3 years ago 3
the FDL engines are good in only one way. they sound good. but they are pure shit compared to GM engines. you don`t see many GE engines from the 60`s and 70`s in daily use today. because of their bad quality. but huge numbers of gm -engines from the 60`s and 70`s are still in daily use. and why that? because they are strong and reliable.
olegutn 3 years ago 2
Was the engineer holding the turbo / supercharger drive connected to engine at first or is that automatic?
I mean the turbo is engine driven during start up then exhaust driven isnt it, was the engineer pressing 2 buttons for that reason?
tpvalley 2 years ago
You are correct about the turbo drives. The red handle is the fuel rack. To start an EMD you bump the fuel and press the start button. The buttons he was pressing are the crankcase pressure switches. If there is a sudden build up of pressure the switches will shut down the engine. Why he's bypassing them is beyond me. I also take issue with his starting method. He pressed the start button too long which caused the fuel rack to buck. I'm also suprised the overspeed trip didn't engage.
greyman001 2 years ago
fuel rak to buck?
is that suddenly go to maximum and back?
Dont u hold the start button until it starts and how does the start button effect rack, does rack goto maximum until u release button?
tpvalley 2 years ago
Yes, that's bucking, or hunting. It's uneven governor oil pressure which can be caused by cold oil or starting at too high an RPM. EMDs can start at low RPMs and are sensitive to overspeed. The start button doesn't need to be held until the engine starts, the starter only needs to get the engine spinnning. The rack and starter system are not connected. Without manipulating the rack by hand, the engine will spin but not start.
greyman001 2 years ago
But what happens if engine wont start?
does the starter circuit stay on until speed gets above starter motor speed (or generator speed if dc)?
In uk, the start button is in cab on our emd engines, the electronic ones, r they different?
tpvalley 2 years ago
Let me try to explain... First, he was controlling the gouvernor manually, to make sure that the engine gets diesel when he starts to crank, this because of bad starting batteries. An that's wy he allso rev up the engine a bit, to make sure it would keep running (a little to much if you ask me but...) The two buttons he is pressing is crankcase pressure switch (dont hav to press this in) and coolingwater pressure switch (this must be pressed inn, or the engine wont start)
narvik01 2 years ago
If you have good batteries, the engine will start even without controlling the fuel rack handle manually, but then you have to crank the engine a bit to build up oilpressure in the governor first, before the governor is starting to controll the fuel rack... (sorry for bad english, hope you understand!)
narvik01 2 years ago
Where is the coolant pressure sender on that engine? My coolant pressure sender was on the output side of the coolant pump housing. There, I didn't have any problem with low pressure so long as I had coolant in the system. Perhaps on air starts you can't run the starter so long because the engine will spin too fast and trip the overspeed. I had an inspector ask me to demonstrate the 'no rack' start and I couldn't get it to start, it would shut down on overspeed.
greyman001 2 years ago
I don't know where the sender's located, The startup of the engine was a demonstration wich was given when we (a group of Norwegian traindrivers) were visiting the Danish freight company Railion in Denmark. The EMD locomotives I know from Norway does not have any of this switches (EMD 16-567C engines) Without "racking" the engine, I guess it takes about 5-10 sec of cranking to get the engine to start, and it will not come near tripping the overspeed mechanism on electric starters!
narvik01 2 years ago
The only experience I have with air starters, is from a tugboat, with two 8-567C EMD engines. I worked there one week, when I was at junior highschool. Normal starting procedure was to manually operate the fuel rack handle. This two engines powered a single propellshaft, via a form of hydraulic converter gear.They actually used the overtrip handle to stop the engines, but those engines was equiped with a form of release-handle too, to tripp the overspeed manualy
narvik01 2 years ago
To shut down the engine, I used the button on top of the governor. I can't remember the name but it released all the oil pressure holding the rack linkage. The air starters would overspeed in about 3 seconds. I would press the start button for maybe a second and then give the rack a quick bump. I figured I was starting the engine at about 250 to 300 RPMs. I love those engines. Easy to operate and easy to maintain.
greyman001 2 years ago
Stiligt! Du får 5 stjärnor.
sealovers17 3 years ago
Ja visst!
nzmedic 3 years ago
Best engine in the history of railroading. Period.
cbehr91 3 years ago 19
Do you mean specifically the 20-cylinder, or the 645 in general?
SpeakerPolice 3 years ago
645 in general.
cbehr91 3 years ago
I agree. =)
SpeakerPolice 3 years ago
Det er sku musik det der!
Mitsugejl 3 years ago
Stilig! Takk for videoen!
sindrus 3 years ago