Carburetors - Explained

Рет қаралды 1,214,968

12 жыл бұрын

How do carburetors work? This video explains carburetors and the components involved. They are used to mix the fuel into the air entering the engine, and are placed just before the throttle body.
The technology is old, however is still used in small engine applications such as lawnmowers, weedwackers, chainsaws, etc.
Please feel free to rate, comment, and subscribe!
And don't forget to check out my Facebook page:
/ engineeringexplained
Also check out my official website: Make suggestions, participate in forums, enter for Car of the Month, learn through logically ordered lessons, read FAQs, and plan your future!
www.howdoesacarwork.com
NEW VIDEOS EVERY WEDNESDAY!

Пікірлер: 535

@1SmokingLizard 10 жыл бұрын

self-taught college kid who makes a professor's hour long lecture just as informative inside 3:30 minutes for most people to understand not needing the entire physics behind the concept. great job sir!

@EngineeringExplained 10 жыл бұрын

erin morales Haha thanks!

@yapnop2 10 жыл бұрын

You are damn right mate, why don't we have such lecturers in college, I mean, great minds like this guy, do exist after all.

@zainulabideenzain3 9 жыл бұрын

Couldn't agree more :)

@Eviscerate86 9 жыл бұрын

There are so many useless college professors these days. So many engineering students had to taught themselves.

@adrienperie6119 9 жыл бұрын

Well you do have to understand the physics to truly understand what makes it work, otherwise you don't really know why it works, just that it does by being a certain way.

@EngineeringExplained 12 жыл бұрын

You're welcome! Glad it helped you out. Cheers.

@ahmadsamadzai8255 Жыл бұрын

Literally looked up a dozen of these videos and couldn't really grasp it till watching this. Thank you sir.

@EngineeringExplained 11 жыл бұрын

The choke is used to restrict air-flow at the start in order to inject more fuel for starting the engine. After that, the choke is left open and the throttle valve controls the airflow.

@nicmeehan5142 8 жыл бұрын

Wow, Jason I cannot believe how far you've come in 5 years!

@EngineeringExplained 8 жыл бұрын

+Nicholas Meehan Haha, thanks Nicholas! 4 1/2 but who's counting! ;)

@kylehubick6589 8 жыл бұрын

+Nicholas Meehan I was thinking the exact same thing!! Completely different, in a great way!

@vladandrei51 3 жыл бұрын

@@EngineeringExplained Jason, I can not believe how far you've come in 10 years! :D Props to you man.

@mr.blackhawk142 3 жыл бұрын

He a rocket surgeon now??? :P

@nfperrini 5 жыл бұрын

This is honestly the best explanation I've found. TY

@EngineeringExplained 5 жыл бұрын

Happy to hear it, thanks for watching!

@ultramb6206 3 жыл бұрын

True

@matthewdinola1422 3 жыл бұрын

I second that. Great explanation

@AlphaSierra375 3 жыл бұрын

Sincerely, Thank you.

@ddddoc7078 2 жыл бұрын

Zero flash here but the info is just right

@mfalasa 4 жыл бұрын

After having seen so many of your newer videos, it was so amusing to see this nearly 10 year old video from you! I do miss the short and sweet video format of days past...

@migueldejesus3784 8 жыл бұрын

It's amazing how tens of thousands of people paid through the nose for what I learned here in five minutes. Thanks dude. You explain this better than some machanics I know

@nicolascuriel 8 жыл бұрын

He explains better than any mechanic I had met. btw I only know like 3

@jamshedahmed1491 7 жыл бұрын

cute

@aeroscience9834 7 жыл бұрын

Miguel Dejesus You think you just got the knowledge of an engineering degree in a few minute video? Lol, keep dreaming. Ignorance is a bliss I guess.

@rohinimishra9437 6 жыл бұрын

Aeroscience atleast we will get an idea what it is and then study from book .why so ignorant??

@ha_ha-ha_ha 5 жыл бұрын

I hope you never ever touch a car engine. You're a hazard going by your attitude.

@EngineeringExplained 11 жыл бұрын

Thank you! I still make mistakes but I try to at least make a note in the description if so. Glad you enjoy the videos!

@tankermottind 8 жыл бұрын

It's a toilet for fuel.

@eatsleepgamereview 8 жыл бұрын

You just summed up this whole video.

@Fr33zeBurn 8 жыл бұрын

You heard of Rons flying toliet

@samensophie5122 2 ай бұрын

Hunsjejjdjrrjrjjdjdjdjdjjjdjfjf

@notyourrealfather 4 жыл бұрын

Crazy to see this video after seeing a bunch of your newer videos! You've come a long way, but always done a great job!

@EngineeringExplained 11 жыл бұрын

Thanks, great to hear! I even use it myself from time to time; it's tough remembering everything. :)

@freighttrain7143 6 жыл бұрын

I've been watching KZfaq videos for probably 7 years, and I am subscribed to a total of 3 channels. Including yours. Way to get to the point quickly and explain what you said you were gonna explain clearly. 5 stars man.

@Mprikiman 6 жыл бұрын

Jason, if you were a professor in the vehicle department of our university, I would choose vehicles instead of electronics. Too bad that besides that's not the case, we are also of the same age. I admire your effort and your achievements. Keep up the good work mate!

@labradormcgraw2409 7 жыл бұрын

I've said it once, I'll say it again - this guy embodies everything that's great about KZfaq. Unrivaled knowledge coupled with a natural talent for teaching... add to this the seldom-seen ability to include only what we really need to know, and what we have is an absolutely indispensable learning resource. The fact that, through KZfaq, we get all that for free necessitates the burning question: why are we paying $$$$s each year for inferior quality tuition from our colleges? Huge respect to EE!

@EngineeringExplained 12 жыл бұрын

@Veggies94 Depends on the setup, can be either or, but one carb is more common leading to the intake manifold. Higher performance engines (older, obviously) may use one per cylinder.

@Randy-ev2kw 3 ай бұрын

12 years later this video just helped me understand my holley carb infinitely better. Thanks dude.

@dann5480 Жыл бұрын

The best explanation of how a carburetor works out there on the Internet. KZfaq should put this video at the top of its recommendations instead of that horrible SmarterEveryDay slow motion camera dude.

@EngineeringExplained 11 жыл бұрын

In a carbureted car it may not be much different either way, maybe less in neutral since it will be revving lower, then again in gear it doesn't need any fuel to continue moving. Regardless, it's a very minimal gain. If you're looking to save fuel there are much better methods. Drive slower, accelerate slower, etc...

@Afeldenstylee 11 жыл бұрын

Hey, I'm from Germany and I'm working on cars everday. Since I'm interested in every technical detail I just want to know how everything works...now I just saw your videos and i got to say you explain everything just right - I didn't find any false statements! Keep on doing that stuff, your channel is awesome!

@EngineeringExplained 11 жыл бұрын

I'm sure it could be fine tuned to optimal fuel efficiency, carbs were used in NASCAR I believe up until just recently, I'm sure they had them dialed in right. That said, it's very difficult to compete with direct injection, as this allows for the fuel to be injected at the exact times when it will yield the most power or the best fuel economy, something carbs cannot regulate.

@EngineeringExplained 11 жыл бұрын

Yes, more air means more fuel can burn. It's balanced. However, with a diesel vehicle the gas pedal actually does increase the amount of fuel injected (the ratio of air to fuel goes down).

@Coredor3 8 жыл бұрын

This is the first video I watched. I'm going to subscribe now.. I'm trying to learn more about my truck. Your explaination and diagram are the most comprehensive way I learn. Thanks, I'll be checking out the other videos.

@EngineeringExplained 8 жыл бұрын

+LynchMobbin Thanks for subscribing!

@MrShobinstein 9 жыл бұрын

Bro.. You did what most animations and 3d drawings couldn't.. Awesome.

@EngineeringExplained 11 жыл бұрын

Yes, I should be getting into hybrids/electrics within the coming months!

@EngineeringExplained 12 жыл бұрын

@powprashant Sounds right to me! Bikes with fuel injection are typically much easier to start in cold weather.

@EngineeringExplained 11 жыл бұрын

Seems like you could do it, I'd do some searches on forum/KZfaq to see if someone's done it and see what all is involved. Good luck!

@71iron13 6 жыл бұрын

thanks for this vid. I'm a nerdy engineer who works on small engines as a hobby. This video was direct and to the point which was easy to understand. It's easy to present the information but to explain it in a way that makes sense is difficult. Your explanation was perfect. keep em coming.

@EngineeringExplained 10 жыл бұрын

Very welcome, glad you appreciate it!

@phillipranglin7928 8 жыл бұрын

Amazing video! I'm trying to convert a carburetted gas generator to run on propane, and I didn't want to proceed until I understood how the mechanism worked (since I'm otherwise exclusively a diesel/cooking oil person). This fills in all the scientific gaps, so thank you!

@EngineeringExplained 11 жыл бұрын

Yes, it's possible. you would have the carb placed after the device creating boost (turbo).

@razorgg Жыл бұрын

so 3and a half minutes, that is how long a you tube should be, and this was great. Thank you.

@frustrateduser666 11 жыл бұрын

Thank you. I am an engineer, albeit in a different stream, and I appreciate the in-depth technical explanations :)

@EngineeringExplained 11 жыл бұрын

Interesting, thanks for sharing!

@Discretesignals 12 жыл бұрын

The explain of pressure difference causing fuel to move is spot on. Most people think that the fuel is being sucked out of the bowl when in fact it is the difference of pressure that causes the fuel to be drawn out into the annular booster sitting in the middle of the venturi to be atomized.

@hdwblade 4 жыл бұрын

One of his early videos still making me smarter! 😅

@EngineeringExplained 11 жыл бұрын

Not sure what you're asking. It's so that you can have a difference in pressure, allowing for the fuel to be drawn to the lower pressure area.

@EngineeringExplained 12 жыл бұрын

Thanks, I enjoy your passion haha

@abhishay22 3 жыл бұрын

I was watching your current videos, until i bumped on this 1, do look like a teenage kid though, you were kicking since you've started man. Keep up.

@thecherokeechannel688 4 жыл бұрын

Dang! This video is pretty old and STILL has the easiest explanation to these systems. thanks jason. Been following for several years didnt expect to find this. Great job!

@lou_leem 7 жыл бұрын

Wow I'm watching this video at 1000000+ subs. Congratulations

@mikebolton2388 6 жыл бұрын

+ls7orBust same here

@prateekkhade 11 жыл бұрын

one of the best persons on internet explaining about car tech.. hats off mann!! :)

@daulatneupane4055 4 жыл бұрын

Excellent. Didn't know a thing about Carburetors expect that they are used in motorcycles and cars. Now I feel I can design one haha. Precise and Concise explanation. Thanks!

@EngineeringExplained 11 жыл бұрын

With more fuel burning (step on the gas pedal) the force is greater on the pistons, making them move faster, as they move faster, the engine RPM increases.

@v4riab1lity77 Жыл бұрын

You really had to explain this one? On this video? This had to have been their first educational video on anything car related

@AGregariousPOS 8 жыл бұрын

I love your videos but maybe it's time to revisit this and upload a more "updated" version. Please 😃

@pizzlesauce 5 жыл бұрын

Nah never forget where his roots came from. Leave this gem up

@siapahno6833 9 жыл бұрын

Explained very clearly. Thanks.

@greauxpete 6 жыл бұрын

I'm a mecanical engineer, best explanation I've seen so far.. Great job..

@TheDrunkardHu 5 жыл бұрын

😢And now you're all grown up! Trying to source some videos for my son to watch. Yours are just as effective now as they were back then. 👌

@EngineeringExplained 11 жыл бұрын

Glad to hear!

@ryoga8170 3 жыл бұрын

I never could understand carbs until now, you explain it very well and I have NO QUESTIONS!😎👌

@declanobrien4852 8 жыл бұрын

I remember checking out your videos about how all wheel drive, four wheel drive, and transfer cases work. Sadly I forgot about your videos but no more! I'm subscribing and definitely going to catch up on your videos. Great presentation and information, you are a very smart guy.

@ericvernivich 11 жыл бұрын

Awesome video man! really well explained. Im just about to start my motor-mechanic apprenticeship and your videos are a great way to help me understand how things work :) keep up the good work!

@LilleyAdam 10 жыл бұрын

Mate, this was a brilliant, easy to understand, and logical presentation of a carb. Kudos.

@EngineeringExplained 12 жыл бұрын

@juanjcorredor I know they're fun! That's about all haha. No, but in all seriousness they're just miniature cars. Most components work exactly the same.

@simedogz 8 жыл бұрын

The best video on carburetor operation I have ever seen. Bravo.

@slippyn64 4 жыл бұрын

Hi, chemical engineer here, this is an EXCELLENT explanation.

@MichaelDelugg 4 жыл бұрын

Just what I needed. A concise, clear explanation. Thank you! And Happy New Year!

@sherlynmillet5702 11 жыл бұрын

very well explained, can be understood by anyone who have a zero knowledge on this kind of system, keep it up, and waiting for more videos..

@EngineeringExplained 10 жыл бұрын

The air intake, could be a filter or piping above it.

@nolanatorhf 11 жыл бұрын

i probably learned more in this 3 minute video than i did in the last 4 years i spent in highschool....excellent video!!

@MultiBeast301 4 жыл бұрын

Nice explanation. No need to use 10 minutes to explain a simple concept like every other video. Subed

@EngineeringExplained 11 жыл бұрын

Thanks, appreciate it!

@marinuslubbe3993 11 жыл бұрын

CAN'T.STOP.LEARNING. !!! Your videos are adictive ! Congrats man and keep up the great job !!

@EngineeringExplained 11 жыл бұрын

You are welcome! Thanks!

@EngineeringExplained 11 жыл бұрын

Thank you!

@nedsmith6283 5 жыл бұрын

This couldn’t be improved on, a perfect explanation. Thanks

@ImAlrightITHINK 6 жыл бұрын

This must be one from when you first started. You've come a long way that's really cool to see.

@chaff5 5 жыл бұрын

Seeing your current vid on PI and DI, I went to look up the pros and cons of Carburetors and of course, this video is among the listed videos!

@MontiGabriel 4 жыл бұрын

Thanks to COVID 19 I found time to understand how a carburator works and definitely, of the 7 or 8 videos I have looked at this is definitely the best. Congrats !!! i am suscribed to your channel right away.

@crisprapper 9 жыл бұрын

Thank you for this, I had little idea of what goes on in a carburetor and now it almost makes perfect sense.

@osamamaddani 3 жыл бұрын

you explain things better than a lot of proffesors and PhDs I know 😂 even though your presentation in newer videos is better but still this is very good

@v4riab1lity77 Жыл бұрын

“Even though your presentation in newer videos is better but still-“ this filthy bacterium of a species features less self awareness than a tree. I wish one man could have the power to wipe an entire species- but no. I must continually bear witness to grown matured adult humans being lesser minded than literal grade schoolers

@EngineeringExplained 11 жыл бұрын

Agreed!

@twoscoops5197 6 жыл бұрын

As always, incredibly informative and comprehensible video. You do a fantastic job! Thank you!!

@igordvr 12 жыл бұрын

Man your videos are great! I'm Engineer too... but Telecommunications / Electronics / Electrical... But like you I love cars! Keep on going and improving, cuz nothing is so good that can't be improved further! Cya!

@EngineeringExplained 10 жыл бұрын

Small engines (single cyl, lawnmowers, weedwackers, etc..) still use them as they're cost effective.

@doingFinops 8 жыл бұрын

Hi Jason. Thanks for the great video but it would be greatly appreciated if you could do a updated video including more info on carburetor. (Air fuel ratio correction, jet, etc.)

@rohinimishra9437 6 жыл бұрын

Ghoshan Jaganathamani why dont u just give him your sem syllabus

@TartaricKnight 4 жыл бұрын

Great video and explanation. Clear and concise, terminology explained, good usage of principles and easy to see visual drawing. Nicely done

@vivekvardhan5671 4 жыл бұрын

you are a perfect mech tutor No two words about it

@justinhottle3799 8 жыл бұрын

your really good at explaining stuff man. anytime I have a question about something, ill look up your videos

@flightofthefatman 6 жыл бұрын

Thanks bro for all of your videos! They are really interesting, informative. well delivered and more importantly concise and to the point.

@F6HemiCharger 11 жыл бұрын

No Problem. I'll elaborate a little. It was in about 1970 when this happened. Some cars had it before 1970 but it was much more common after then. This came about when Nixon established the EPA and signed the Clean Air Act of 1969. The EPA put the sqeeze on Detroit and Detroit responded by lowering compression ratios, output, and introducing Evaporative Emissions Controls, in an effort to reduce overall emissions, in addition to preheaters, which also improved cold weather drivability.

@madcat4563 2 жыл бұрын

This guy is a wizard and he's been doing it for years. I love that it is easy to follow and even a caveman like me that ditched physics in High school can understand it.

@LeftyLucyRightyTyty 11 жыл бұрын

To start an automatic choke equiped engine, we first press the gas pedal to the floor.This squirts a bit of fuel in the manifold.It also allows the bimetal spring to close the choke valve and move the idle kicker

@ramchillarege1658 Жыл бұрын

Thank you. Excellent Video.. I needed a refresher from 50 years ago

@titustsui377 3 жыл бұрын

WOW. I never knew that you were making videos that long ago. Congrats. I love your videos.

@asmartbajan 7 жыл бұрын

Very well explained. Thanks!

@EngineeringExplained 11 жыл бұрын

You're welcome!

@gamerfela8317 10 жыл бұрын

Thanks a lot! Tomorrow i have exam and u made it clear the topic in a few minutes!!

@MicahWedemeyer 11 жыл бұрын

Thanks! The explanation of the choke was especially useful.

@7pathsofpein 11 жыл бұрын

Love your videos mate! Best channel on youtube without a doubt.

@CristianDiaz-tg1pj 7 жыл бұрын

This is wonderful. Never stop learning!!!

@keze7998 6 жыл бұрын

thanks, the videos provides more useful information than many other websites. Looking forward to more videos.

@dirkvalentine7297 7 жыл бұрын

Explained the concept like a pro! Subbed!

@leedo03 9 жыл бұрын

I'm taking fluids right now and this makes so much sense! thank you!

@ChaeSeo 2 жыл бұрын

Best explanation I have heard ever.

@javilamaravilla 12 жыл бұрын

I fucking love you man, I'm studying Aviation mechanic and is more or less similar to cars and you don't know how much I have learned with your videos..Keep it up!

@F6HemiCharger 11 жыл бұрын

These preheaters were only a bimetallic strip that when closed would complete a vacuum circuit. The vacuum hose from the carburetor would be connected to the primative sensor which was located inside the air cleaner lid, then be connected to a diaphragm and a rod which opened and closed a door in the snorkel on the air cleaner. these usually operate in temperatures of 65 degrees or less (inside the air cleaner). These usually opened at 105 degrees, and were modualted for optimum operation.