@CPAlburtisRailfan there are 2 types of Governors on engines with no ECM, the electric governor and pneumatic governor the Marine engines use the pneumatic governor which is + or -1Rpm and the electric is + or - 6Rpm...
@CPAlburtisRailfan it's my understanding the type of governor used determines the particular service be it a pneumatic or electric both made by Woodward, the ECM engines are a group of their own, but last time I was at Woodward was in 83'...
@@doctorinelectricalengineer7748 Hi my friend we have 6 engines 20/654 but now we have problems At specific fule consumption more than normal every one its 0.30
I was a shop electrician on the c&nw rr sometimes I would run the crane for the machinests heads were torqued at 2400 and we were required to open the cyl cocks on a cold engine and blow out any moisture before starting
Some 645s were actually both turbo and blown from factory, and a few had blower or a turbo. Think of their combined forced induction system as a gigantic procharger kinda. It's a 2 in 1 combination of the perks of a blower with the power of a turbo. EMD themselves pointed out this genius method of boost while keeping the engine dimensions the same. Even with a blower these engines still fall under the category of naturally aspirated as the 2 stroke design would simply fail without proper scavenging of the air.
@@HPsawus it's technically a turbocharger. At cranking speeds, it's turbine shaft is turned mechanically through a clutched gear drive off the crankshaft, acting like a centrifugal supercharger. Once enough actual exhaust is flowing though, it acts like a normal turbocharger.
it’s both, the camshaft runs it, at idle you can here it fire the injectors thru the charger why it makes that unique sound idling,(it’s speeding up and slowing down every time it fires) until it has enough exhaust velocity to spin the axial turbine wheel, manifold pressure disengages the gears. these only make a few pounds of “boost” it needs it at idle because the piston does not push the exhaust out, the blower does,along with charge the cylinder with air… 2 strokes are really a unique engine how they work but i really don’t care for them i prefer 4stroke ✌🏻
Awesome, been between two of them on a towboat. Amazing sound
72000 volts from a 16-645 EMD MSD magneto 2 stroke is no joke! It sucks getting shocked with that voltage is no joke!
I spent years with the engines on offshore drilling rigs, my ears are finished.
Yeah I can imagine those engines can jack up your hearing in pretty short order.
I understand brother. Many years on offshore oil rigs with all sizes of EMDS.. loved working on these machines.
Actually the Turbo is gear driven from throttle 6 down, throttle 7 and 8 the exhaust drives the turbo above the gear train to produce massive power
This is an E7, so there are no notches. If I recall correctly (and I mostly mess with 3’s) 4 is marine, and 7 is standby generator use.
@CPAlburtisRailfan there are 2 types of Governors on engines with no ECM, the electric governor and pneumatic governor the Marine engines use the pneumatic governor which is + or -1Rpm and the electric is + or - 6Rpm...
@CPAlburtisRailfan it's my understanding the type of governor used determines the particular service be it a pneumatic or electric both made by Woodward, the ECM engines are a group of their own, but last time I was at Woodward was in 83'...
The equivalent RPM
@CPAlburtisRailfan this engine is using a pneumatic governor,
Brilliant engines worked on them for 12 years on oil rigs .
They use these on oil rigs? What for?
@@bracdude181to generate electricity to power the rig.
@bnkwupt ahh gotcha. I'm used to seeing locomotives powered by them though some are definitely better maintained than others!
Excelente trabajo y video gracias por compartir un abrazo fuerte desde puebla pue
Very beautiful sound and video thanks for the share.
Good morning deer can you please tell me about consumption at this model its consumption very high some time up to 0.30
@@محمدعبداللهخالدعليالمخلافي
السلام عليكم ورحمة الله وبركاته،
سيدي الكريم فضلاً لم أفهم سؤالك جيدا أرجو منك التوضيح.
@@doctorinelectricalengineer7748 Hi my friend we have 6 engines 20/654 but now we have problems
At specific fule consumption more than normal every one its 0.30
Are you a Michanc engineer
@@محمدعبداللهخالدعليالمخلافي
No I'm electrical power systems doctor, teaching electrical engineering.
I was a shop electrician on the c&nw rr sometimes I would run the crane for the machinests heads were torqued at 2400 and we were required to open the cyl cocks on a cold engine and blow out any moisture before starting
What an absolute brute of an engine 💪🇺🇸,……nothing on earth like the sound of a Turbocharged EMD 645 engine,………….the sound of the mechanical Gods 👌💪👍
Yes stay away from the 2 stroke EMD ignition system as it makes about 72000 volts and over 2 amps and it can kill you dead!
Absolutely ground the magneto to avoid electrocution when cranking the EMD 2 stroke!
Ignition system? It's a diesel. Or am I missing something? @@jlo13800
Im being silly!
Look at those valves working. I love it.
OH! Ok so it's turbo charged.
Some 645s were actually both turbo and blown from factory, and a few had blower or a turbo. Think of their combined forced induction system as a gigantic procharger kinda. It's a 2 in 1 combination of the perks of a blower with the power of a turbo. EMD themselves pointed out this genius method of boost while keeping the engine dimensions the same. Even with a blower these engines still fall under the category of naturally aspirated as the 2 stroke design would simply fail without proper scavenging of the air.
i think thats a centrifugal supercharger
@@HPsawus it's technically a turbocharger. At cranking speeds, it's turbine shaft is turned mechanically through a clutched gear drive off the crankshaft, acting like a centrifugal supercharger. Once enough actual exhaust is flowing though, it acts like a normal turbocharger.
@@slowpoke96Z28 oh wow that’s fascinating. I should’ve read the first reply before leaving mine haha. Thanks for the knowledge ✌️
it’s both, the camshaft runs it, at idle you can here it fire the injectors thru the charger why it makes that unique sound idling,(it’s speeding up and slowing down every time it fires) until it has enough exhaust velocity to spin the axial turbine wheel, manifold pressure disengages the gears. these only make a few pounds of “boost” it needs it at idle because the piston does not push the exhaust out, the blower does,along with charge the cylinder with air… 2 strokes are really a unique engine how they work but i really don’t care for them i prefer 4stroke ✌🏻
Sounds good!
Sweet symphony it is. 👍👍👍
I need one for my backyard.
Aaaahhh! What a sound!!!
Don't loose your hat in the tornado box
The 12 cylinder ones we had on tug were supercharged. There were 4 of them.
I WANT ONE OF THESE!!!
0:18 what are those black things on the crank case covers?
Pressure blow off valves Incase a crankcase explosion happens. They let the air out in a controlled way.
This is meant to be in an SD45
Needs a SD45 or 45-2 to be mated to.
It’d run better with a spurving gear off the Turbo Encabulator
Don't forget the indian goods locomotive WDG-5 (BHEEM)
Parts saver gasket blown out. Shop it.
😮😮😮😮
Where is this?
In a workshop
@@miausculos_xd I barely come on here anymore, and I should really look at some of these comments, but we’re based out a port Alberni BC Canada
Could you help me with sales maneger General Motors contact to quote many spares parts for L20-645-E4B?
Saw these on some offshore oil rigs and a Canadian built drill ship. Very noisy, fairly reliable but with a very poor power to weight ratio.