Loco 66542 cold start attempt 3...

[@formidable38]

As far as efficency, reliability, maintainability and downrite bullet proof designs go, this engine is about as 'proper' as it gets as far as locomotive primemovers are concerned. It pains me to say it being british, but EMD have it down to a fine art and have done for about the last 60 years with '567' and '645's' before these! I cant think of anything better right now.

[@jlo13800]

Yes true 4 joke strokes are throw away disposable junk!

[@scenicdepictionsofchicagolife]

Well I certainly hope you boys across the pond can still get them built new. The 710 has been dead in the water since 2015 here in the states (and what a tragedy that was for local manufacturing here in Chicagoland, since EMD literally built them right outside the city in La Grange, IL), save for some emissions credit locomotives, re-engines, and international maritime vessels. Supposedly there is a rail version that has an SCR after treatment system but I don't think it has been built into any new locomotive series and hasn't really sold at all since the introduction of the 1010J engine in the new SD70ACe-T4. That new engine is so quiet it's almost disturbing. Go have a look at some of the videos on it online. Sounds like a vacuum cleaner. I consider myself lucky to be able to still see and hear 710s and 645s in operation every day... Chicago is a railfans wet dream. We are the rail hub of North America, and I live down the street from not one, not two, but THREE Class I railways... Just in my corner of the city. It's always truly awe inspiring.

[@formidable38]

@@scenicdepictionsofchicagolife They're all done here now too. No new builds alowed to use them. They had some new 710's in reserve but theyre also used up. CAT engines have taken over new build diesel locomotives here.

[@bonkeydollocks1879]

If this isnt proof they put exhausts on licomotives simp i dont know what is, you see that big gap above the engine? Thats where the header goes, look to the left you can see the connection pipe 0:46 you see the exhaust 😅.. Choo choo!

[@bonkeydollocks1879]

0:46 thats the exhaust simp

[@chompette_]

very surreal to hear a 66 sound like a traditional diesel locomotive without it's silencer!

[@francoisd6942]

Because there is no silencer on these locomotive diesel

[@erkinalp]

Silencer will cause 10% deratement. Meaning they use the engine normally rated for 2200hp at 2400hp thanks to omission of its silencer.

[@railfreightdrivergallagherGBRf]

300bhp power drop without the silencer

[@jlo13800]

@@railfreightdrivergallagherGBRf make and mount some big tuned 2 stroke pipes on her!

[@TheSilverShadow17]

​@@railfreightdrivergallagherGBRfOther way around. Silencers will lower the power output of a giant diesel engine because the airflow is restricted. As one of the other comments stated, that'll derate the engine below factory ratings

[@kettle750]

Cold start after removal of exhaust manifold for gasket replacement.Thought it a good idea to flash it up and clear any debris from the ports.

[@ianh3007]

You know damn well you just wanted to hear what it sounded like without the muffler

[@deanlamberth0sbcglob]

The sound of a EMD is so impressive, especially when you have overhauled one and hear the HP on a new start. Nasty greasy work but the vibrations and sound is awesome

[@dontstealmacosx]

In the USA, some 645-powered SD40-2s are still going strong after 30 or more years of service and perhaps three complete overhauls. Service parts are still made for 645s. 567AC, 567BC, 567C and 567D engines may use 645 service parts as part of a "life extension" program, and EMD makes 645 "power assemblies" specifically for this purpose. Union Pacific, and others, have been converting pre-Dash 2 locomotives to Dash 2 standards, using operational and/or "dead line" locomotives as "donors".

[@TEMPLE7D]

The only time you’ll hear an EMD 710 without a turbo. Love the large chunks of material flying out on start lmao.

[@bonkeydollocks1879]

You can here it spooling up, its shaft driven....

[@nigelterry9299]

So there is a decent sounding engine under all those damned silencers! This is in the UK, loco is in Freightliner livery and note the EE 350hp shunter's roof in the distance.....

[@jlo13800]

now mount on some giant 2 stroke expansion chambers!

[@jlo13800]

Theres no such thing as 2 stroke unless there is lightning

[@marccaya8412]

Turbo is still turning even if the exhaust is not connected to it (no manifold). It's because it is mechanichaly connected to the engine at low speed via a ratchet clutch. Interesting!

[@dontstealmacosx]

It is a sprag-type over-running clutch. For lower runs, the engine acts as a mechanically supercharged (scavenged) engine, just like a Roots-blown engine, only using different machinery. For higher runs, the engine acts as a turbocharged engine and scavenging is done at the MUCH greater positive pressure which is only possible with turbocharging. This, then, is why removing the manifolds allows testing of the engine by venting the exhaust directly into the ambient air. Good enough for initial testing, but certainly not good enough for maximum load testing as the turbo-compressor is being forced to work in compressor mode, only. Rule of thumb: using a Roots blower, a 645 is capable of producing 2,000 HP, but using a turbo, the same 645 capable of producing 3,000 HP. Another rule of thumb: Although a Roots-blown 710 is NOT offered, the equivalent HP of a Roots-blown 710, should one ever be offered, may be computed from the turbocharged HP by multiplying by 0.67, for the same displacement. Of course, 710s are going out of new production, but the thousands of existing 710s ... SD60s and SD70s ... will likely be with us for DECADES. It is interesting to speculate about the eventual success of the 1010. My guess is it will eventually work fine, but it may take some time.

[@TEMPLE7D]

Marc Caya explains why EMD locomotives have a “Turbo On/Off” switch

[@jakes4966]

TEMPLE7D they have the “turbo on off switch” for the soak back pump, it pumps filtered engine oil through the bearings and turbo to cool them to prevent damage. The turbo is mechanical connected to it can’t be “turned off”

[@erikb8877]

@@dontstealmacosx what ever happened to the H series 4 stroke? When I was going through the factory school, in LaGrange IL, the H series was still in beta testing. I remember seeing one on the factory floor that had thrown its rotating assembly through the block.

[@NoBody-ht1oh]

@@dontstealmacosx all two stroke diesels have to be scavenged by pressurising the crankcase, the only difference here is higher boost pressure achieved in high notches.

[@fieryspirit]

The feeling playing this at high volume and a high level of base is unbelievable! I recommend it heartily!

[@hakeemsd70m]

Wow, this 710G sounds super rad! I've never heard one of these engines growl like this before, amazing and beautiful unmuffled sound!

[@kirkhathaway4974]

That was a rad perspective of a big diesel engine!!!!!Thanks for posting!!!!!!

[@DieselDucy]

AWESOME sound!! LOVE IT!!

[@adamswindells1]

I love as all the carbon comes flying out of the exhausts when she fies up :P

[@SpeakerPolice]

Wow! EMD engines sound AMAZING with the exhaust system removed! 8D

[@bangersfuzzy]

Geiler Sound. Erst ein Rumpeln, dann der Turbo der hinterher jagt. Einfach ein Lecker Diesel Sound vom Feinsten.

[@normken]

The most beautiful sound in the world. Thanks!!

[@dontstealmacosx]

In testing, the exhaust manifold may be removed, although it is unusual to do so. With no exhaust manifold, there can be no exhaust gas-driven turbocharging. However, the engine's over-riding clutch system will still cause the compressor section of the turbocharger to operate as a supercharger for engine scavenging during starting. Then, after the exhaust manifold has been properly installed, the engine's turbocharger operates as a supercharger or turbocharger, as required.

[@a1e20]

That feeling when you wake up and you have that frog in your throat...

[@dontstealmacosx]

When you compare a 710 to a 567, the 710 IS bored 9/16" AND IS stroked 1". 567: bore is 8-1/2", stroke is 10". 645: bore is 9-1/16", stroke is 10". 710: bore is 9-1/16", stroke is 11". These engineering decisions kept the operational envelope of the engine the same, while maintaining as much parts commonality as was possible. The crankcase changed each time, for other reasons. Induction: 567: Roots blown and a few turbo. 645: Turbo and a few Roots blown. 710: turbo only.

[@BruceBoschek]

Nothing as delicious sounding as an EMD, especially without exhaust manifold and muffler! Love it.

[@camillesymons2170]

Very impressive! Sounds a lot like an old fashioned Farmall Tractor! I didn't realize that these turbocharged two-stroke diesels could run without the turbo being disconnected from the exhaust plenum. I guess that the turbo is being driven through the over riding clutch in order for it to supply scavenging air to the cylinders.

[@jefffaubell5271]

Without a dought, this is my favorite emd video, only complaint: videos too short, I could listen to that thing idle all day! Thanks for posting, now if I can figure out how to make this my ring tone!

[@mathuetax]

Aww, a V12 EMD straight out the exhaust ports! I bet this sounded AWESOME in person!

[@dontstealmacosx]

EMD 567s powered numerous U.S. Navy landing craft. Usually a pair of 567s. During this time, the EMD plant was diverting 567s to Navy contracts, so dieselization of the U.S. railroads was held up for a while. Thereafter, it was "all hands to the pumps" and 567s were employed in road and switch engines with the La Grange plant producing about one complete locomotive per day. All EMD engine blocks are made from common steel shapes and a few castings, welded into a unit (a "weldment").

[@nlo114]

When these loco's are old enough to be withdrawn, I'm going to buy one for the back garden and enhance my neighbours' enjoyment of their sunday afternoons.

[@pjotrslanina1403]

Wow......What a sound!! I really LOVE it!! That's power. There's nothing to a diesel engine!!

[@50046ajax]

This sounds realy nice with no silencer almost a class 37 or Ruston sound to the power unit thanks for posting

[@Rainhill1829]

Aw damn thats a satisfying sound.👌

[@Rickstew86]

If only Class 66's sounded like this in daily service, it'd be far more interesting! Nice video. Great to hear the 66 engine unsilenced.

[@PowerTrain611]

I still can't believe EMD gave in and went 4 stroke... their 2 stroke design was one of the biggest factors in their success because of ease of maintenance. 2 stroke EMD's are SO easy to work on, it's just the old hard-wired electronics that become a real pain...

[@unaizilla]

they had to adapt in one way or the other to the tier 4 emission standards, something a 710 couldn't achieve

[@choirboyfromhell1]

I like the way the turbo still whines with out the exhaust manifold and any exhaust running thru it, because it's clutch-driven at lower speeds. Sounds like a throaty SW1500!

[@ProEnduro97]

Love the sound of this V12 turbocharged :)

[@dontstealmacosx]

The EMD-type turbo-compressor operates in these ways: 1) during starting or during Idle or during "Run1", the compressor section is driven by the crankshaft through an over-running clutch, and 2) during "Run 2" through "Run 8", the exhaust gasses drive the turbine section and the turbine drives the compressor section faster than the crankshaft can, thereby disconnecting the over-running clutch. Essentially the engine is truly turbocharged during "Run 2" through "Run 8".

[@NoBody-ht1oh]

Incorrect, mechanically driven to notch 6 then turbine driven from there to 8

[@GingerPhilG]

I was going to get some jump leads and my car booster pack, but I think you got it sorted now... lol... lovely sound there..

[@DG19075]

Love that EMD sound!

[@88SC]

After he opens the throttle and the RPMs stabilize at 1:00, it sounds so much like an Allison V-1710 on a WWII P-40. Yeah I know, both are V-12s, but an EMD rarely gets to bark through open-stacks like that.

[@Thevacomaticvacuumcorner]

a lilttle red line for a good time wont hurth her to much open header as they say just cleans her out if you as k me

[@TheSilverShadow17]

As an engine of that size should, it has every right to bark at full tilt let alone max rpm

[@castillelarkin]

Anyone else note the part falling off at 1:39?!

[@timmungenast]

YES! But not until you mentioned it! hahahahahahaha! Thanks for the tip. :D

[@castillelarkin]

After this video I watched some videos about the largest engines, then the largest airplanes, then the strangest airplanes, then I dreamed that I had to give a presentation on the history of strange airplanes for my Scripture Engagement class :/. The presentation was a total flop!

[@timmungenast]

castillelarkin hahahahahahaha! well done!

[@sciisfun]

just an exhaust blank, as the exhaust piping has been removed by the looks of it

[@Mr.PudgeMuffin]

if it still runs, it's not needed

[@trainmania100]

Loved it :-) favorited.

[@Thom518]

Very nice to watch the Class 66 disel engine thanks for the video.

[@TheosTrainsWalesOfficial]

Sounding like a beast!

[@dontstealmacosx]

Correction: the transition from mechanically assisted scavenging to true turbocharging occurs higher than Run 2. This transition is automatic and solely a function of exhaust heat energy. It is true that this transition is slightly different between 567, 645 and 710 engines. 710 engines are only available with turbocharging. 567 and 645 engines are available both ways.

[@rodrigoulianadesouza1689]

FANTASTIC.

[@NovioSites]

This is just great!

[@dontstealmacosx]

Exactly ... it is a simple diagnostic technique. The compressor section of the turbo provides just enough boost to provide for scavenging during starting an also at somewhat higher than idle testing. After the exhaust ducting has been reinstalled, the turbo acts as a true turbo again, and operation up to maximum rated HP is again available. The turbo is relatively large, as one might imagine, and operates at about 25,000 rpm, compared to 900 rpm for the crankshaft.

[@DrRichtoffen1]

Over here in the US we have conductors, and that's what their jobs are, the engineers are not allowed to even leave the seat while they're driving unless it deals with the locomotives operation. In answer to your question :) hoping to start soon for the G&W's B&P line

[@75Bird455]

That is awesome!

[@ReadingAreaRailfan]

Sounds like an SD60 combined with an Alco S2 lmaoo

[@rhondaw1]

...........love it............

[@LegoWormNoah101]

Sounds like a whole different locomotive without it's silencers! Kinda sounds like a Class 37 "tractor"

[@5thscalercuk986]

What a beautiful sound

[@timmungenast]

Those first few seconds were so totally "Chitty Chitty Bang Bang"/"Mary Poppins"/"Willy Wonka"!! Ya really need good headphones for this, though...

[@raymondrayban]

oh i do love the sound of aclass 66! ,...........i love that ying ying sound as it ticks over it comes in at,0"16 ying ying! ying ying ying ying ying ying ying ying,ying ying ying ying yingyingyingyingyingying , ying ying ying ying + so on !

[@DoctorDARKSIDE]

Good run up!

[@dontstealmacosx]

The crankcase has so-called "hand holes" at two levels. The upper ones, one for each cylinder, are for accessing the scavenging ports, also for cylinder inspection. Also for effecting the liner cooling water supply. The lower ones, also one for each cylinder, are for accessing the connecting rods, in particular the "basket" which completes the "fork" rod and also accessing the "big toe" of the "blade" rod. So, on a 12-710 you should see a total of 24 round "hand holes", on two levels.

[@alexwhitaker9493]

best sounding 66 ive heard!!

[@NRP589]

That's cause it doesn't have an exhaust manifold mounted to muffle the noise. They should leave all 66s like this!

[@timbervalleyproductions]

Ooooooh that's a nice sound

[@don.marsden]

Very nice; thank you.

[@nov3019892008]

nice i like the sound of that

[@birminghamWILDCAT]

So basically it's a V12 diesel engine that's the size of a full-size van? Sweet.

[@SKNK5050]

my favorite sounding engine ,no contest

[@DigitalLonestarX4600]

I wish had one of these in school to play with, i mean the old chevy engines on standfs we had to fire up for learning experience was fun, but they didnt give half the annoyance to band class kids as one of these without the manifolds would.........and the smoke mwahaha i had so much fun smoking out classrooms in my school because of the way the ventillation system was designed xD

[@ravlbi4268]

Well done

[@jonstrains]

Thats a lovly vidoe of inside the engine i have never see one.

[@dontstealmacosx]

The castings are mainly in the so-called "A-Frames", those structures which support the crankshaft, and which are "line bored" after the "weldment" has been stress-relieved. This design approach usually means that there is only one stress-relief heat treatment for the entire lifetime of the engine. Competitive engines require periodic stress-relief heat treatments all throughout their lifetime. Perhaps this is but one reason why you see so few GE overhauls, whereas EMDs just keep on trucking.

[@topautos]

Beast !

[@Ruba81]

Моща!!

[@MCatSHF]

Hello Kettle750: Third time is the charm!!!

[@pandusepur9124]

awesome sound and amoke

[@dontstealmacosx]

MANY 567s are still running on short lines. 567AC, 567BC, 567C and 567D engines may use 645 "power assemblies" for so-called "life extension" programs, thereby retaining many 567 engines for the perhaps many decades to come. EMD makes 645 power assemblies especially for 567 (all are "exempt") and also for certain "exempt" 645 engines. Basically, these locomotives may continue to be operated until they suffer a failure which causes them to be dispatched to the "dead line" for scrapping.

[@Starfleet0]

i feel naughty having seen this, like its too awesome for human eyes.

[@PauliosVids]

Brilliant

[@gag4s]

Cool!

[@ttrainmixx]

Nice !

[@formidable38]

Yeah, thats about it. EMD also like to point out that with this system, you also get a quicker power delivery, 'on demand' and less smoke. As regards cylinder scavenging, I guess it does a similar job to the roots blower used in old 1940's EMD 567 engines, there are still hundreds of those running about in the U.S too!

[@nov3019892008]

General Motors builds awesome cars and trains. Love my Astra

[@okotokspaul]

my lordz wot a great sound

[@dontstealmacosx]

See Wikipedia, page "EMD 710", for complete specifications. Essentially, the 567 was bored, but not stroked, to produce the later 645. Bored 9/16" (14.3mm). The 645 was stroked, but not bored, to produce the later 710. Stroked 1" (25.4mm). All of these engines are constructed from flat, formed and rolled structural steel members, and steel forgings, to produce a "weldment". These are stress-relieved before being "line bored", and require no stress-relief heat treatment thereafter.

[@AUSSIETRAINDRIVER]

hahahaha ALCO start with an EMD!!

[@Samsgarden]

Hey karnz. Why does the exhaust come out of the middle and where's the intake manifold?

[@jnewbon00]

hahaha i could actually see the carbon foot print AWSOME

[@JishyFishy4106]

In spite of the Trrr-Trrr sound, i could hear the magnificent jet like sound

[@cat_with_sunglass]

The turbo is mechanically connected to engine with a driven clutch, that's why it can run without the exhaust manifold. It's more likely a mix of a turbocharger and a kinetic supercharger

[@rewind48]

I laughed so hard when I read this.

[@cossieolly5950]

Sounds good without the silencer!

[@dontstealmacosx]

Inspections are required every 92 days (184 days for the latest 710 models). 645E and F and 710G models are quite modular with significant commonality in parts. The 567C and D are about the same. A 567E is really a 645E block originally made with 567 power assemblies. 567 (no suffix) through 567B somewhat less so. Basically, starting with the 567C models, most design details are the same. One set of special fixtures is sufficient to operate on any 567, 645 or 710.

[@dontstealmacosx]

There is a gear train from the crankshaft to an over-running clutch in front of the turbo (the turbo is at the "rear" of the engine). During starting and when the exhaust gas temperature is too low to operate the turbine, the crankshaft drives the compressor through the over-running clutch. After combustion has been achieved, and the exhaust gas temperature is high enough, the clutch disengages, and the turbo-compressor operates as a true tubocharger. This works with no manifold for testing.

[@MiensalTeam]

Piękne

[@KH990j]

Wow, the 710 has got quite a grow with now exhaust manifold.

[@KH990j]

'growl' and 'no'

[@jackprocter8694]

vroom vroom VROOOM VROOOOOOMMMM VROOOOOOOOOOOOMMMM!!!!!!!!!

[@W5KVV]

@tpvalley Yes, the turbo runs off the crank up to +/- 500 RPM depending on load. After that the overunning clutch kicks out & the turbo runs off exhaust gasses. :)

[@bennickss]

Class 66 becomes a steam engine (2010)

[@tpvalley]

@kettle750 so turbo is mechanically driven during start up?

[@Lighting_Desk]

She didn't seem to care too much for that! Haha

[@sandraealex]

best sound

[@Sophie-eq1io]

Uhhh🔥🔥🔥hot

[@SpoonyMcSpoonface]

Sounds better than the usual Yang Yang Yang.

[@cat_with_sunglass]

u are right

[@formidable38]

@jim40135 In addition, thats why you still hear it even though theres no exhaust manifolds connected becuase its mechanicly driven and not exhaust driven. This system is the EMD's strong point. No lag means spontanious power and low exhaust emisions in the from of no black smoke on throttle-up thats normaly caused by turbo lag / slow spool up of the turbo.

[@formidable38]

When the engine is running at idle, the turbo is driven mechanicly via a gear system. When the power throttle is opened it is driven by exhaust gas like a conventional turbo and this is facilitated by an overrun clutch. This is why you get zero turbo lag and black smoke with EMD's like you do with conventional large diesels.

[@tpvalley]

@papabugs71 so if u revved it like this above that speed it would make tons of smoke and the rpm would drop to 500rpm?

[@tpvalley]

@kettle750 so how was the blower driven here? they run off exhaust gasses apart from at start up where they are mechanically driven dont they?

[@slimG2082]

are a v12? and 2 or 4 stroke? I work on diesel truck and equip. never had the chance to work on a loco, kind of makes my back hurt just thinking about it LOL