Glass Carburetor Running a Briggs & Stratton Engine + How Does a Carburetor Work?
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- Опубліковано 30 лис 2017
- Ever wonder what a glass carburetor would look like inside? Well, now we all know! Pretty awesome with all the fuel squirting around and getting sucked into the engine! The glass head Briggs that / 805roadking did a while ago was part of the inspiration for this video so a special thanks to them. If you haven't already you should go watch my series on turning an old refrigeration compressor into a working 2 stroke internal combustion engine with only a hacksaw and a drill. I also build a mini carburetor for that engine which is in part 6. • DIY Compressor to Inte...
For future reference, do not use acrylic for handling gasoline because it becomes cracked and cloudy(crazed) very quickly. But it was all I had on hand to make it out of, so it does the job. After it becomes badly crazed, I can clear it up by burning a propane torch inside the carburetor throat.
Also checkout HackPGH, it's a maker/hacker space where I used the lathe to turn this. It's a really great place to go if you like making things. hackpgh.org/
Keep exploramenting and thank you for watching!
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Congrats on being featured on Smarter Everyday.
Hi dear Sir I have been watching you for quite some time and I'm always amazed.
I'm a 47-year-old with with some engineering training over 20 years mechanical experience. your gift to the World, besides your genius, is your ability to think outside of the box please do not ever lose that.
Can I mount this on my next see-through Engine episode? It's going to be nitromethane.
+Warped Perception dude, yes!!! That'd be sick! In exchange for a humble shootout I would even make you an improved one. This one is actually kinda junk because I made a lot of mistakes on it. Email me: makerj101utube@gmail.com
I really want to see this happen!!!!
One of you guys need to make a see through side cove for a horizontal shaft 3 horse. ThT would be fun to watch
Smarteveryday got me here👍
That rubber tube is probably what's making the engine run so rough. If you replaced that with a ridged tube, and added a spring to the throttle, it will run pretty smooth. I noticed as it was running the tube kept collapsing.
Travis Piper I did as well
That too.
Yes looks like a piece of bicycle inner tube, Definitely needs to make a an aluminum manifold so the vacuum pressure won't collapse the rubber. Crude design but it works.
Also the jets probably need some tuning, but yeah that spacer probably doesn't help
I wondered about this, but do not know enough about it to comment!
Your personality in these videos make me happy☺☺☺
Great video! If you take a look at 2:25, it really shows how the engine was running on the low idle jet, you can even see the fuel reclining down the high speed jet as it runs. Then when he gives it full throttle, the fuel rises up the high speed jet as the Venturi takes over! Again, great video!
Best ever explanation of how a carburetor works. And thank you for all your hard work. And for taking the time to make this video and share it .
Love how you used a quarter as the butterfly valve 😂
+Matt Paff I try using coins for washers and random things just for the fun of it haha
Makerj101 might as well! I wonder if you were to use an older, softer coin if it could be used as a gasket for something.
+Matt Paff sure!I don't see why not. I'd anneal it first which would soften it a lot too
Makerj101 I’d love to see you try something like that!
+Matt Paff I'll keep it in mind!
super duper explanation on how idle circuit works at the end of the video, I haven't been able to grasp substantially how it works so far, now everything is clear to me, thanks a lot
Great video. This guy is different in a good way. I could see him blowing up on youtube
Or just blowing up hahaha
UA-cam blowing up? That's Colin Furze :Y
The Nocturnal Alchemist i know his brothers
That was actually a really understandable demonstration of how a carburetor works, and I definitely appreciate that you made it out of acrylic :)
I've got a feeling that (tonight's gonna be a good nighhtttt) this carb will be attached to your homemade engine for 'testing' purposes. Can't wait for the update :)
This is exactly the explanation I was looking for!!! I hadn't been able to understand choke valve function and nobody was explaining it. Thanks a lot!T
Smartereveryday got me here. Nice. Can’t wait for a lathe myself.
Fantastic explanation of a carb. My kid started go karting last year and I found myself wanting to know more about how carbs work and potential options for tuning them. I've got to show this video to my kid.
I can honestly say that was explained very well... Great video!
Awesome explanation! Had trouble conceptualizing how the carb works but that example with the water cup really helped me understand functionality.
Try rotating your carb 90 degrees and drill your idle orifice where the butterfly valve opens at the bottom towards the motor. With the valve partially open the hole should be located directly underneath where the velocity will be the greatest. This should help with start up and should idle smoother. Great video !
You are very educational and entertaining too. I'm a small engine tech and I did find your video very accurate.
That was another fantastic demonstration. Keep it up bro!
one of the most interesting things I have seen on UA-cam. Please keep making videos they're so cool.
Adjustable hammer. Love it.
Also props on the build. Great video and great work.
+Joel Sullivan hehe I love metric adjustable hammers!! 😂 thank you!
Two bit throttle assembly, love it.
Thanks for sharing.
Less... is more...
Great video. I've heard the function of a carburetor explained befor but now I really understand it. Thanks
Whoa nice video. You did great in explaining how carburetor works. With those principles you said. Simply amazing.😍
Thanks for that video just what I needed I am wanting to make a classic looking carb for a vintage motorcycle you gave me some great ideas keep the videos coming
Nice job on that carbi and a good explanation on how it works big thumbs up mate
Doc Brown as a boy haha! Start working on the flux capacitor as soon as possible? :D
No matter what it's always great to see someone who's really into what they're doing!
The valve that controls the flow of air and fuel mixture is a quarter!! Awesome!!
Awesome presentation, thanks.
Nicely done!
You made it so simple for me to understand. Thanks mate
Great instructional video. Tinkering is fun and educational.
Excellent video. Great explanation. Really is.
Nice job on the carburetor! I especially love the quarter as a butterfly valve. The maker space is awesome, unfortunately im an hour away from it.
+FireAndGasoline haha thanks!! Dang, an hour is pretty far. Although there are some members that drive that far to come to our space.
Its not that i couldn't come that far, i wouldn't be able to do it enough to meet requirements for being a member. Maybe we can do a collab one day.
+FireAndGasoline The only requirements are paying dues which are $50 per month and coming to one shop clean every quarter or doing other improvement/cleaning/fixing/etc at the shop. Members meetings and stuff like that are optional
Hey, I'd consider that lucky. I'm 3 hours away. lol
maker space is yuppie drivel ~
Gotta love seeing someone who paid for years of college finally get a taste of real world physics.
Isn't it amazing that folks 100 years ago already figured out more than you will EVER acheive?
i know them in and out but its a great vid to see the real time workings, good job brother boi, comin at ya from aussie!
7:18 "This is a proportionality!" Not sure why but the way you said that made me lol.
Good job bud. Going to use this for my turbo project to supply the necessary fuel under boost
Great information dude 🙏🙏👍
that was awesome!!!! thank you young genius!
This was great from start to finish
So awesome good sir! Well done and great video! Subsribed
What happened to part 7 of the internal combustion engine from a fridge compressor😥
+KaeiGuy don't worry, it's in the pipeline. I needed some content in between because I've hit some snags and it'll be about another week and I figured you guys wouldn't mind more content :)
Makerj101 yayyyyy, can't wait😁. I was thinking of the ignition, and why not use something from a weedeater? Because I'm building something similar, and I'm trying to think of ignition too😕
so. part 7? it has been months, and im not rushing you or anything, but i would really like to see it :)
alos, since the fuel is pulled in from the air moving above the needle, where is it getting the airflow? is the engine pulling air through it nad that is what pulls the fuel through the needle?
@@Scotty-vs4lf it's called the venturi effect. When air moves through that constriction, it's pressure drops. The low pressure pulls the fuel up
I like this new style of presentation XD
Very nice video! Congrats on building a see through carb. It shows how non-uniform the mixing of the air and fuel actually is. This is the main reason why there are huge cycle to cycle variations in the cylinder pressure on the carburetor engines - one cycle gets rich mixture while the next cycle gets lean mixture. Overall, all the cycles get poorly mixed the air with the fuel. Much better combustion is possible with gaseous fuel like natural gas or propane. This is the main reason why green gas gases (CO2) from gaseous fuels are considerably lower than on the gasoline engines. Well done!
I really appreciate this. thank you!
Great video and explanation. Thanks chief
This video was excellent!!!
Very excellent work!
Bernoulli's principle makes a LOT of sense once you go beyond the gross oversimplification you've been fed.
The "pressure" you refer to is *static pressure* . In order to make sense of this, you need to also be aware of *dynamic pressure* and *total pressure* . Bernoulli's principle is an expression of the fact that total pressure in the free stream does NOT change as flow speed changes, as long as compressibility effects do not apply.
It is a very simple definition - static pressure + dynamic pressure = total pressure.
Additionally, we ought to define static and dynamic pressure - static pressure is simply what the barometer shows when it is not subjected to gas flow. Dynamic pressure is fluid pressure given rise to by the fluid's motion. It is a representation of the kinetic energy in the fluid and is proportional to the square of its velocity. It is zero when there is no flow.
Going back to our definitions - as speed increases, so will dynamic pressure. In order to satisfy the Bernoulli condition - keeping total pressure constant, static pressure must reduce by as much as dynamic pressure increases.
For low speed (incompressible) flows, this is the dominant pressure phenomenon.
Dude ..!!! this is amazing..!!! I haven`t seen a clear and simple explanation like this in a while/ and please can you make a video of how that air and fuel mixture distributed to combustion chambers after going through a carburator??/ a big THUMB UP for you in Advance
Or what, great video, funny guy makes me smile. I agree, make the rubber tube more ridged and get a spring on the throttle.
Nice work, congratz.
very nice job, sorry for the late comment I have been a very busy person, also new videos up and I have a really cool project coming up.
I watched alot of carb videos to try to exactly understand them. Thanks to this one, I have it down now, thanks. you the man 👊
now how do you make your own transmission gears (car grade) from scrap metal? 🙄
with a shaper and a turntable ~ or a mill
All you need is a forge and a hobber :D
Excellent explanation.
This was a great video
Cool video man!
Nice demo tool!
Nice carb. Had a similar idea of making a see though intake or intake spacer for something like a opposed twin briggs just to see the atomized fuel.
Great job! I noticed your rubber intake boot was clasping under vacuum. Try changing it to a wire core hose or hard pipe and see if that helps.
Great video!
Always wondered how it works that's genius
Cool work
Best description, I've seen of how a carburetor works! Nice! I wonder if a carburated engine could run in zero gravity? Over thinking LOL.
Toby Whitaker Well a carburettor works due to air pressure, so it’s definitely possible to use one in a zero gravity situation.
Great video 👌
That's awesome!
Awesome video.
i really enjoyed that slow motion
Great job on the clear carb. I really liked the quarter too.When starting you can use a drill like Project Farm does in his experiments.Come to think of it you guys should look into doing a collaboration.
Fun video. Good stuff.
Nice Job!
10 Thumbs up. Well done!
Nice job. Ty man!
nice work
Your slow motion at 3:06 to 3:10 is interesting in that it shows fuel from the main jet bouncing off the far wall of the venturi with every intake stroke.
Your awesome man you remind me of Bill Nye the Science guy
Great vid
Wicked dude !!!
Now.. It's time to crank out a glass G3 with a flag style governor for the old Victa Mark III 70 Series YEEEEW !!!
Nice... Now make a transparent-acrylic progressive 4-barrel carb, or a Weber downdraft-style multi-carb setup. Either would be a helluva showpiece at the local cruise scene.
Thats cool u actually see the turbulent micro bubbles go back to the low pressure zone at the throat of the venturi when u close the butterfly valve
Wonderful
i love him so much
man you're great
Tanks man
Yes You are probably insane - but I love your content! Finally I understand carbs... but im still a EFI guy at heart
I assume the major reason for this video was to show how a carb works, and you really hit the mark there, BUUT i came here for the spectacle of seeing a carb in action and so i would have loved to see just a little more footage of it working after being properly set up and fiddled with to produce some engine power
+Gigaguenther thank you!! I think there were three problems I was having. One, the carburetor throat is too big so the venturi effect isn't great enough. Two, the Jets are too big so they just kinda dribble the fuel in rather than spray as a fine mist. And third, my fuel adjustable valves aren't fine enough. What do you think? What are some improvements you would want to see if I remade this?
Awesome!
+PotatoSauceVFX thanks!!
Keep going!
I learned more in this video than I did studying 4 years of Accounting at Penn State lol Don't go to college kids
Great job, very interesting 😀 Make a 22mm bore 👍
Ey my boi uploaded
Nice bro
Some question i have, does the butterfly valve position matter relative to where the venturi is, i mean, Does it matter if it was placed before or after?
Is there a reason behind why you put it behind the venturi?
Best video
This is so coooooool
Nice!
Now get fancy by adding a power jet, a float, and an accelerator pump.
Awesome