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How a 2 stroke detroit diesel engine runs

I have a couple videos of my 2 stroke detroit diesel powered pickup here on youtube, and I have gotten hundreds and hundreds of questions about how in the world it runs, and lots of people who do not believe that it really is a 2 stroke. So, I'm sorry, I don't have the best voice in the world, and I'm not the best at explaining things or getting the right words to come out, but I did my best in this video to try to give you an idea of how it runs.


 


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GM Detroit 2 stroke diesel engine, first start in 50 years.
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Working view of 2 Stroke Opposed piston Engine
Saw this at the Mount Gambier show and had to share. Really appreciate the interest shown so far. Some good views of rockers and scavenge blower and a look in the inlet showing the piston working as the valve plus the injector shooting into a glass jar. As a kid I remember the sharp bark these engines made at full noise. Apologies to anoraks who want to know all the details but it was hard to hear the chap at the engine because of surrounding noise. The chugging noise you can hear is the vintage Ronaldson Tippett engine which is turning this engine over slowly so you can see how it works. Further notes: It is a 2 stroke cycle which fires every revolution and uses the piston on the inlet side to open and close the port and the piston on the Exhaust side to uncover the Exhaust at the appropriate time while the blower is not to supercharge but to "scavenge" the spent gases ( basically the air blows in the inlet and out the Exhaust at a slight pressure) For those interested in Aerodiesels, : http://en.wikipedia.org/wiki/Aircraft_diesel_engine Link to a running engine:: https://www.youtube.com/watch?v=JrAoj5Cuu68





1959 GMC DETROIT DIESEL SHIFTING
1959 GMC CANNONBALL. DETROIT 6 CYLINDER INLINE 2 CYCLE DIESEL ENGINE. THE TRANSMISSION IS A 10 SPEED ROADRANGER. TOP SPEED OF THE TRUCK IS 65 MPH. I TRIED TO DO A MIX OF LOW RANGE TO HIGH RANGE AND BACK TO LOW , SOME DOUBLE CLUTCH , SOME NO CLUTCH , JAKE SHIFTING . UPSHIFT AND DOWN SHIFT. SOME HIGHWAY DRIVING AT 50 MPH AND AT THE END CLIMBING A GRAVEL DRIVE ON A 15 % GRADE. THE TRUCK HAS 9000 MILES ON A FRAME OFF RESTORATION. IT IS NOT COMMERCIAL AND DOES NOT SMOKE OR LEAK. IT JUST GOES TO SHOWS , PARADES AND EDUCATIONAL EXHIBITS IN ITS WELL DESERVED RETIREMENT. THANKS FOR LOOKING ! THE JAKE HAS A TOGGLE SWITCH TO TURN ON AND OFF , ALSO DEPRESSING THE CLUTCH OR STEPPING ON THE THROTTLE WILL TEMPORARILY NULLIFY IT. I FLIP THE SWITCH AT ABOUT 43 SECONDS INTO THE VIDEO. TAKE CARE. To purchase a custom photo of this truck go to ; https://www.etsy.com/listing/220606844/cannonball-1959-gmc-antique-truck-fi ne?ref=shop_home_active_1





Detroit Diesel 453T in 48 Diamond-T
your defiantly tired after driving this thing....respect to the old truckers!





V12 Detriot Diesel 525HP
Setting the engine up and breaking it in.Remember this engine is just being started after a rebuild so that's why it's smoking from the assembly lube and the rack will be set-up to stop the hunting etc etc. Then the oil is changed and the engine painted. These engine's go into Euclid mining rock trucks,and they were in many other equipment/vehicles.The engine has rebuild heads,turbo's, blower, water pump,all internal parts and the air compressor All done in the great north of Canada





GM 2-stroke V8 start and run (Higher quality)
Same as the other video, Detroit Diesel 8V-71, except from another angle. Some blue smoke visible from one side of the engine. :::: INFO ADDED :::: Many do NOT understand the meaning "2-stroke", which 98.5% of the world population do. The definition´╗┐ of "two\2-stroke" do NOT (I REPEAT; "DO NOT"!!) say wether the engine has valves, carburettor, injection or not, but rather how many strokes the piston has to take before new air\fuel enters the cylinder. The modern type two stroke diesel engine have valves, are direct injected, are supercharged\blowed and have full pressure oil lubrication. HOW A TWO STROKE DIESEL ENGINE WORK: 1. When the piston is at the top of its travel, the cylinder contains a charge of highly compressed air. Diesel fuel is sprayed into the cylinder by the injector and immediately ignites because of the heat and pressure inside the cylinder. This is the same process as 4-stroke diesels. 2. The pressure created by the combustion of the fuel drives the piston downward. This is the POWER STROKE. 3. As the piston nears the bottom of its stroke, all of the Exhaust valves open. Exhaust gases rush out of the cylinder, relieving the pressure. 4. As the piston bottoms out, it uncovers the air intake ports. Pressurized air fills the cylinder, forcing out the remainder of the Exhaust gases. 5. The Exhaust valves close and the piston starts traveling back upward, re-covering the intake ports and compressing the fresh charge of air. This is the COMPRESSION STROKE. 6. As the piston nears the top of the cylinder, the cycle repeats with step 1.





1959 GMC DETROIT DIESEL HOOD OPEN SHOWING MECHANICALS OF TRUCK AND DRIVING OVER CAMERA
WALKAROUND AND HOOD OPEN SHOWING MECHANICALS OF THE TRUCK. JAKE BRAKE ON AND OFF, WHISTLE BLOWING. DRIVING OVER CAMERA TO SHOW CLEAN UNDERSIDE. NOTICE NO OIL DRIPPING ! THANKS FOR LOOKING !





Deutz 545 starting.
Starting a Deutz RBV8M 545 Engine, 1000HP @ 380RPM





RUN AWAY Detroit Diesel! 453-T
DD 453-T runs away! rack gets stuck on valve cover. almost lost some fingers too, it was all i could find. F'ed up new turbo compressor wheel, was only damage thankfully!





Detroit Diesel 6v-92 Grain Truck RETURN!!
The famous GMC Brigadier returns for another harvest season. It has the same 6V-92 made by Detroit Diesel. It still is hauling its normal 500 bushel load.





Detroit Diesel 6v92 rebuild - Initial startup
Strarboard DD 6v92 for the BOSS LADY. First start after rebuild by Billy Edwards Diesel Service in Chocowinity, NC 1/29/09





pissed off 8v53
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24V71 Detroit
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