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.
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
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, :
Link to a running engine:: https://www.youtube.com/watch?v=JrAoj5Cuu68
Screamin Detroit Diesel 653 C70
SOLD TO MY NABOR ACROSS THE STREET 1966 CHEVY C70 653 DETROIT 3 SPEED OD
AUX ,2 SPEED REAR FULL AIR BRAKES POWER STEERING ,TILT WHEEL.
missed a shift or two. Camera and tri pod in the way a little. Shifts
better when the trans a rear warmed up a little more.
The main box 4th and 5th are shifted 2 times when using the 2 speed, 4th
low rear 5th low rear back to 4th high rear then 5th high rear.
Picked up a 5th wheel sider hitch for it. Soon to do some body work and Exhaust stacks up the back side
A day at the Buck ~ fullBOOST Live 
Mud bog and Big Rig sled pulling
Buck Motorpsorts Park
From our 2005 DVD ~ FullBoost Live
Creative Commons Music License CC 3.0
Detroit Diesel 2-stroke V8 start and run (idle)
Detroit Diesel (GM) 8V71TT start. It was sitting in a partially sunken
boat, and have'nt been started for a while.
It had been cranking for a while before I got there with the camera.
Unknown power, and unknown year produced.
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
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
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
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