@Deadboots they have a pump which atomisers the diesel fuel into the crankcase, what the guy was doing is pumping more fuel into the crankcase to get the engine running smooth while it warms up, these are 2 stroke hot bulb diesel. ignition of the fuel air mixture is by hot bulb not compression like conventional diesels, plus compression is much lower in these engines, and they can run on many types of fuel.
@fixitdude74 This engine is actually a full diesel. When first run (before rebuild) she needed a couple of strokes to get the injector solid when starting. Injection is direct into the cylinder and scavenge air is provided by the lower half of the cylinder.
When she was first run there were two disconnected cylinder lube connections (now sorted).
Air is drawn through intakes low down on the crankcase through channels inside the case. reed valves allow air to be drawn in and then piston porting for the transfer.
Originally a marine design and I have a photo of an 8 cylinder direct reversing engine.
No decompression release but remove the starting wick holders in the heads to bar over to a starting position then compressed air start on the cylinder furthest from the flywheel.
Very interesting. I used to work on a lot of older diesel engines (Atlas-Imperial, Union, White, Cooper Bessemer, Worthington) but nothing quite like this.
Good show, eh what!
DeserTBoB93535 1 year ago
What is that lever in his right hand operating? Throttle?? I notice in most videos they pump it (priming?) while cranking the engine.
Deadboots 1 year ago
@Deadboots they have a pump which atomisers the diesel fuel into the crankcase, what the guy was doing is pumping more fuel into the crankcase to get the engine running smooth while it warms up, these are 2 stroke hot bulb diesel. ignition of the fuel air mixture is by hot bulb not compression like conventional diesels, plus compression is much lower in these engines, and they can run on many types of fuel.
fixitdude74 7 months ago
@fixitdude74 This engine is actually a full diesel. When first run (before rebuild) she needed a couple of strokes to get the injector solid when starting. Injection is direct into the cylinder and scavenge air is provided by the lower half of the cylinder.
semidiesel 1 month ago
Smookin!
1339LARS 1 year ago
Nothing like the smell of diesel in the morning :)
Mitsugejl 2 years ago 6
great engine!
I have a Worthington Simpson oil pressure gauge from a similar engine around 1950's era
Aussie50 2 years ago
brmp brmp brmp brmp, I love 2 strokes!
steamwally 2 years ago
wow id port that thing and make it better damn thats one big 2 stroke
30GB 2 years ago
Hmmm. Why did my eyes start burning a bit after it started? Could it of been the smoke?
chuckrl 3 years ago
That is so cool. Old engines amaze me. Theyre simple but complex at the same time.
Soothsayerman 4 years ago 8
There exactaly where simplicity and complexity meet, due to lack of knowladge and manufacturing know how.There the best examples of the principal.
sz42781 3 years ago 3
That thing sounds so cool :-)
Was it originally used on a big boat?
I'd love to see it running up close.
Maxxarcade 4 years ago
Forgot to ask, do you know the specs on it? It sounds like it has a pretty long stroke, and probably tons of torque.
Maxxarcade 4 years ago
We don't have any real details for her, have not actually measured the bore and stroke - must do it sometime.
We think she was built in 1929, have been trying to get details from the Smithsonian who now have the Worthington company archives.
semidiesel 4 years ago
thats a nice engine wish i had one if i get me a truck i want a diesel!
dragonchild25 4 years ago
wat type do you want cummins duramax or powerstroke
dieselman1988 4 years ago
either one would be fine
dragonchild25 4 years ago
does this run on straight diesel or other as it is a 2 stroke? Do both pistons fire at the same time?
angamoos 4 years ago
Running on 35 sec agri diesel, 2 stroke with a 180 degree crank.
semidiesel 4 years ago
What method of scavenge?
Crankcase or seperate blower or scavenge piston?
tpvalley 4 years ago
Under piston hence the need for the crosshead. You can just see the covers for the transfer ports above the footplate.
semidiesel 4 years ago
Where is the smoke coming from on top of the engine?
What controls the inlet to the area under the piston? I heard some old diesels used reed valves?
Lovely engine,I wonder if they made versions with more cylinders?
tpvalley 4 years ago
When she was first run there were two disconnected cylinder lube connections (now sorted).
Air is drawn through intakes low down on the crankcase through channels inside the case. reed valves allow air to be drawn in and then piston porting for the transfer.
Originally a marine design and I have a photo of an 8 cylinder direct reversing engine.
semidiesel 4 years ago
machine de guerre! lol
discovery82 4 years ago
.....and the Monster starts.........lol
EdmDude 4 years ago
hmm in the words of p.t.e start by andrex lol
stig11987 4 years ago
amazing that they got both cylinders to fire off at the same time on such a big engine. I don't think there are any exhaust pipes on that engine.
douro20 5 years ago
What does it use for scavenging? Decompression release?
Faren254 5 years ago
Under piston for scavenging, crosshead engine.
No decompression release but remove the starting wick holders in the heads to bar over to a starting position then compressed air start on the cylinder furthest from the flywheel.
semidiesel 5 years ago
veeerry nice indeed.. runnin alil rough... love that sound ;)
Sulazoh 5 years ago
Running a lot better now, see the other clip
semidiesel 5 years ago
nice the engine is very big what is the engine used for?
bensonak47 4 years ago
Very interesting. I used to work on a lot of older diesel engines (Atlas-Imperial, Union, White, Cooper Bessemer, Worthington) but nothing quite like this.
Barnekkid 5 years ago