I'm just going to jam it in there this time
That was impressive
This engine is such a beautiful precision piece of handcrafted machinery
Straight from China
And if there's one thing I learned from whistlin diesel is that you can learn a lot by destroying
nice things
I don't see why this engine should be an exception to that
This is the new M12 mini gasoline engine
from the very very kind folks at stirling engine kit I'm told that this engine is the
best of the best and can handle just about anything
That's a really bold claim that I'm about to put to the test
Since I'm told this is a brand new engine
I think you're blowing it up would be a perfect introduction into its existence
Let's not waste any time and get right into it
first before getting into anything really extreme I want to start this engine up on
gasoline
Which is what it was designed for let it run and break in
And get acclimatized to the Chicago air
This did come from the other side of the world
I need three things oil gas and water because its water cooled
And I looked everywhere in the manual and I can't see anywhere
Where it says to put the water and the oil
the gas goes right here in this little tank and I'm assuming
That the water goes right in this reservoir that sits right on top
All of the head kind of like an old school locomotive
I'm guessing that the oil gets added to the block like a cruise ship from 1835
Let's look inside of there
Yep sure looks like the crankcase
I want to blow this engine up with mechanical failure
I don't want this engine to seize
I'm making sure I'm putting the oil in the right spot
plenty of oil
I do not want to seize this engine
That looks great look at all that oil in there
Definitely is a cool little engine
it's going to be sad when I have to say goodbye
I have it all filled up with oil water and gas
I'll before starting this I just want to give you a quick overview
For those that might not be familiar with this type of combustion engine
This is the spark plug I'll come back to that in a minute
these are the flywheels which keep the engine rotating in between cycles
this is a 4-cycle and so you have the
intake stroke
Compression stroke
Powerstroke
An exhaust stroke
So those three other strokes do not make power
Only the powerstroke does
and some of that engine is reserved in these flywheels
Which keeps the engine running.
This is the crankcase
This is the gas tank
This is the cooling tank
It just transfers heat by contact
You just fill this up with water
And this is a cylinder here
This cylinder heats up that reservoir
And that's how it cools the engine
This is the carburetor which mixes the air and the fuel
Coming on to the other side everything is exposed
These are the pushrods the intake push rod the exhaust push rod
The rocker arms the valve springs
You can see the cam pushing those valves open
Via the pushrods this is like a pushrod V8 or something like that
This is the little cute little muffler
And one last thing I want to show you
Is this cute little tiny little spark plug
That thing is tiny
So that's it I'm going to throw this back together and get this thing fired up
Used to call that panther piss
Looks like I might have put a little bit too much oil in there
Right there that's as good as I can get it to run
More in is lean and more out is rich
Almost sounds like a hit or miss engine
That was this engines first run on gasoline
it wasn't really what I expected it sounded kind of like a hit or miss engine
I know what everybody's going to say I was running it too rich or too lean
but I adjusted the mixture to where it was running perfectly
and it still sounded like a hit or miss engine
a gasoline is not what we're going to use to blow this thing up
Earlier today I put out a community post asking people
What type of fuel everybody wanted to see me use to blow this thing up
Check that first and run the fuel everybody wants to see me use.
Then I'm going to move into the fuel that I want to use.
Which I think is going to surprise everybody.
looks like nitromethane is going to be our next fuel.
which is what everybody wants to see.
Before running it on nitro I just want to open it up and
Just try to figure out why this engine is running like crap
I think I might even see the problem here because of that hole
Because of that hole in the head for the spark plug design
I would imagine that the flame propagation out of that hole is a lot slower
Then you would see in a modern engine
here we go the antique replica old school engine.
Running nitromethane.
[Music]
Sounds about good there.
I definitely don't see this thing blowing up on nitro
Definitely needs forced induction.
Before moving away from the nitro into the coolest part of this video
I want to try one more thing
I want to replicate turbocharging or supercharging by injecting pure oxygen
Right into the carburetor of this Engine with the nitromethane
I Don't think it's going to blow but I think I might sound supercharged
Here goes the run on nitro methane with oxygen
[Music]
It likes the oxygen
Let me give it some more fuel and oxygen
Oh yeah more fuel
Oh yeah nice
Looks like that engine love the oxygen
to the point where this little thing was screaming
I doubt that this little thing was designed to handle that type of RPM
Because now I tried to start it afterwards and it won't start.
So I remove the spark plug from the cylinder head
yet again to let it cool off or do something
it seems to work if you take it out and then put it back in
But one thing that I did notice apart from that
Is check this out
So after that last run it looks like the crankshaft bearings are going bad
And if you look inside there you can see that little cover
There's a little camshaft underneath that that I really don't care about
That operates these valves
It seems like the lifters don't have the same travel that they had before
I don't know if the camshaft is already getting worn down
or maybe this thing just doesn't use oil
I put some oil in the crankcase and it seems to be coming out of that crankshaft cover
But yeah it just doesn't have the same travel
so I don't think this is going to make it through
for this next test which is the most exciting part of this video for me
I want to introduce engine DIY to Sterling kit
I think you may have met before
but I bet you didn't know you were going to have a face off did you
This is the hydrogen generator from engine DIY
that I'm going to use to produce the hydrogen and oxygen
That is going to clear that little engines throat
I'm going to do a full episode on this in the very near future
But for now I'm just going to fill it up with water plug it in and let it do its thing
Because I know that this little engine cannot wait for this hydrogen oxygen mix
all right here we go here's the run on hydrogen and oxygen
[Music]
Well I guess it didn't blow up
The one thing I did notice is that they ran a lot better on hydrogen then gas
and the one thing I did notice is there is absolutely no smoke
That's because the byproduct of burning hydrogen oxygen is water
So that makes perfect sense
next thing I'm going to use his oxygen acetylene
what I've been waiting for
Oh man you ready for this little engine
I don't think you are
I'm going to start it up on hydrogen
and then switch over to the oxygen-acetylene mix here we go
Uh oh something happened I think it seized up
Oh no the engine seized
I'm not sure what happened
lets open it up and see what kind of damage we find
Wow that's cylinder head definitely looks a lot better than it did before
See look at how loose those valves are in there
And I know this is just a model engine
A lot of people are going to be like why are you criticizing somebody's work
But people criticize my work all the time
It seems to kind of get stuck
That's it it won't go into the bottom of the stroke
All right let's open up this crankcase
Oh I don't know what all that is in there
It's weird it's like I don't know what that is seems like a whole bunch of
Seems like water the crankcase is full of water
Where did all that water come from maybe from burning hydrogen
That's the weirdest thing the whole crankcase is full of water
Well that's not good lubrication
Something's hitting in there that's strange
I'm going to remove the connecting rod cap screws
And just slide the entire piston and connecting rod out
And see what happened what the heck
I can't get it out though something has happened to the piston
All right there we go I see exactly what happened
If we look inside of the cylinder sleeve
we can see exactly why the engine seized
it looks like there is a little bit of impurity in the metal or something that
got hot and just kind of popped up and the clearance is so tight here that it just sees
the piston and the fact that all that water was in the crankcase instead of oil didn't
help the matter either looking at the Piston I can see that this little kind of make do
piston ring some type of silicone rubber has melted I guess
It's okay I have some new silicone piston ring / o-rings
I'm going to rering this piston put it all back together and give it another shot
This time I'm going to go with some full synthetic oil
That way hopefully we don't have to worry about lubrication problems
Insert the entire sleeve into the engine
There's not that much we're for it being brass and not having sufficient oil
I am going to put a little bit of oil
There we go it's working again look at that compression get some oil in the crankcase
synthetic oil all lubed up
Here I go the second time around I'm going to start it on gasoline this time
turn on the oxygen acetylene and inject as much as I can
I do want it to blow up
so this is my last and final attempt I hope it blows two pieces let's see what happens
I'm going to open the oxygen acetylene all the way as much as I can
All right here it goes is the high speed camera rolling?
I'm just going to jam it in there this time
All right that was impressive
That was so fantastic I had to contain myself
even the fuel tank became a geyser
and just started squirting out of the gas tank under pressure
you can see the engine was really struggling as the RPM got up there
I can see exactly what blew on this engine it looks like the gas started escaping from
the valve guide
And burning outside the engine heating up that little spring
up to the point where it just disintegrates and gets thrown into the air look at those
Sparks
It seems like it was a somewhat success
Successful on the terms of just being chaotic
Which is what I love and so does the high-speed camera
Because The more chaotic it is the cooler it looks
it didn't blow apart but I know this engine is based off of a really old engine design
yeah that was interesting I'm going to leave a link to this engine in the description below
If you want to buy it now you know
That it will survive oxygen acetylene
I mean I didn't even know that so I'm going to get going
Now I have to figure out how to get a GoPro inside of this tire
And roast them that's the next video right after this one
I'm going to just hold the accelerator until they blow up or something else happens first
so thanks for watching don't forget to subscribe
Let's do it
Acetylene oxygen high speed camera rolling
Woohoo cut it cut the high speed camera